Environmental Economics
Samaneh Bagheri
Abstract
Introduction: Fossil fuel consumption has warmed the earth by releasing greenhouse gases. Abnormal climate changes, rising sea levels, melting glaciers and other climate phenomena have attracted global attention. Greenhouse gas emissions are considered as the main cause of climate change and global warming. ...
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Introduction: Fossil fuel consumption has warmed the earth by releasing greenhouse gases. Abnormal climate changes, rising sea levels, melting glaciers and other climate phenomena have attracted global attention. Greenhouse gas emissions are considered as the main cause of climate change and global warming. The largest percentage of greenhouse gases is carbon dioxide gas. The spread of pollution is one of the most important problems of countries It is one of the problems of the present century. Iran is among the ten countries with the highest carbon dioxide emissions in the world, and measures have been taken to reduce carbon dioxide emissions in this country, which have not led to a reduction in carbon dioxide emissions in this country.Materials and Methods: The purpose of this research is to investigate energy consumption, carbon dioxide emissions and economic growth using the directional non-cyclical graph approach for the period of 1990-2018 for the country of Iran. The data was obtained annually from the World Bank. Pearson's correlation test and Granger's causality test were investigated for variables of economic growth, capital, open trade, carbon dioxide emissions and energy consumption. For the first time, this research examines the causal relationship between energy consumption, carbon dioxide emissions and economic growth with the approach of a directed non-cyclic diagram.Results: According to the results of this research, there is a significant correlation in the variables of carbon dioxide emission, open trade, energy consumption, capital formation and GDP. The highest correlation coefficient belongs to GDP and carbon dioxide emissions and the lowest correlation coefficient is related to gross domestic production and open trade. According to the results of the Granger causality test, causality from GDP to carbon dioxide emissions, causality from carbon dioxide emissions to energy consumption, causality from GDP to energy consumption, Causality from capital to energy consumption, causality from capital to GDP, The cause of carbon dioxide emissions to open trade. Causality from energy consumption to open trade, causality from capital to open trade and so on There is causality from GDP to open trade. Iran has a relative advantage in energy consumption due to its huge resources of oil and gas, which has caused the emission of pollutants by the gross domestic product.Discussion: According to the results in Iran, there is causality from gross domestic product to energy consumption and carbon dioxide emissions, which shows that Iran does not need to reduce its economic growth in order to reduce carbon dioxide emissions. It indicates that energy consumption and carbon dioxide emissions in Iran will not lead to economic growth. Iran can follow a conservative energy policy and a policy to reduce carbon emissions in the long term without creating obstacles and reducing economic growth. Economic growth has led to the emission of pollution and it is possible to pursue economic growth without the emission of pollution by using sustainable development policies. The causality is from economic growth to energy consumption, trade and capital. According to the directed acyclic diagram (DAG), the Granger causality test was investigated in the variables of economic growth, open trade, capital, carbon dioxide emissions and energy consumption. According to the results of this research, Granger causality has started from economic growth to other variables.
Environmental Law
Farzad Karimi Khanjari; Mahdi Sajadi Kia
Abstract
The environment is one of the most important issues today, which is at the forefront of international affairs, given the catastrophes we are witnessing today. These catastrophes are caused by the damage done to the environment by individuals or governments; the damages that must be compensated by them, ...
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The environment is one of the most important issues today, which is at the forefront of international affairs, given the catastrophes we are witnessing today. These catastrophes are caused by the damage done to the environment by individuals or governments; the damages that must be compensated by them, that is, they have civil liability. Environmental civil liability is defined in both international and Iranian law, but there may be different definitions for determining the type of civil liability. Now the question is, in case of damage to the environment, what is the resulting civil liability in Iranian law and international documents? Therefore, in this article, we will study the nature of civil liability in Iranian law and international documents analytically-descriptively and with a library method, and we will examine how to compensate them and their strengths and weaknesses. Research shows that absolute liability in this situation is the best type of civil liability that can be applied to environmental damage, and that is why this type of liability has been adopted in international documents, but in Iranian law, civil liability is based. It is the fault that it also applies to environmental damage, which is not commensurate with the nature of the environment.
Abbasali Rastgar; Mohammad Keshavarz; Shayan Rouhani Rad; Shahin Rouhani Rad
Abstract
The present study aimed to investigate the relationship between green transformational leadership on environmental citizenship behaviors concerning the mediating role of environmental beliefs and green policies. This study was applied in a descriptive and surveyed manner. The statistical population in ...
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The present study aimed to investigate the relationship between green transformational leadership on environmental citizenship behaviors concerning the mediating role of environmental beliefs and green policies. This study was applied in a descriptive and surveyed manner. The statistical population in this study is 212 employees of Shiraz Municipality who were selected by the available sampling method. To analyze the data, the partial least squares method and Smart PLS2 software were used. The findings indicate that measurement tools have good validity and Cronbach's alpha coefficient is more than 0.7 for all research structures. The results indicate that green transformational leadership has a positive and significant effect on environmental citizenship behaviors. There is also a positive and significant effect between the variables of green transformational leadership and environmental beliefs and green policies. Environmental beliefs and green policies also have a positive and significant effect on environmental citizenship behaviors, but environmental beliefs and green policies play a mediating role between green transformational leadership and green citizenship behaviors.
Kamran Shayesteh; Shiva Gharibi; Farhad Feizi
Abstract
Urban is a unique and inconsistently defined land cover including green and grey infrastructures. Tree covers that can store large stocks of carbon. There are several ways to estimate a tree's CO2 sequestration. In this study, Google Earth images were used for mapping tree covers in the Hamadan urban ...
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Urban is a unique and inconsistently defined land cover including green and grey infrastructures. Tree covers that can store large stocks of carbon. There are several ways to estimate a tree's CO2 sequestration. In this study, Google Earth images were used for mapping tree covers in the Hamadan urban scale with an area of 7422 hectares. First, a 50-meter buffer was applied on two sides of the main streets. Then, it was classified into three groups called high, medium, and low density based on the percentage of greenery. In each group, the information of 265 trees (the total of 800 trees) were recorded randomly such as allometric data and canopy diameter of trees. An Object-Oriented approach was applied to extract the area and canopies of individual urban trees. The total number of trees and their location were estimated by dividing the total of trees canopy by the average of the individual urban trees canopy. Allometric equations were used to estimate the dry biomass of tree species. Based on the results, the main species in the study area include maple, black locust, sycamore, manna ash, cypress, fir tree, and elm. The average amount of organic carbon stored in individual and street trees with asphalt and cobblestone pavement is estimated to be about 88.29 kg, which differs significantly from those with the surface covered by soil and grass (an average value of 148.79 kg). In total, the amount of organic carbon stored by Hamadan urban trees is estimated to be 1.6 tons per hectare.
Environment Assessment
Yahya Chehrazar; Faeze Chehrazar; Mohammad Javad Amiri
Abstract
Today, changes in land use and land cover are caused by a very important factor affecting population growth. Landscape change is done by changing the cover and land use. This study was conducted to investigate, compare and analyze the effects of urban growth on the landscapes of two regions of Karaj ...
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Today, changes in land use and land cover are caused by a very important factor affecting population growth. Landscape change is done by changing the cover and land use. This study was conducted to investigate, compare and analyze the effects of urban growth on the landscapes of two regions of Karaj with different structural natures and to investigate the trend of land landscape changes due to urban growth. Satellite images and landscapes were used to produce land cover maps and detect changes. Ground cover was classified into three main classes of vegetation, open space and construction. The analysis measures the landscape in area 4 indicate that a floor area of the urban construction period of 15 years, 48 percent and the effects of this growth on reducing the floor area of green and open space by as much as 19 and 39 Percentage is up. These results in Zone 9 also indicate the removal of patches of green space due to a one percent reduction in the total area of green space coverage from the total landscape. Thus, the extent and continuity of the network and reduce the destruction of open green space and urban mosaic spots, providing ecological services and improve environmental quality in these areas are threatened. Therefore, modeling the models that express the principles of land landscape ecology in urban planning and management is essential in the development, remediation, and restoration of the ecological structure of the land.
Farhad Hosseini Tayefeh; Bagher Nezami Baloochi; Mona Izadian
Abstract
Introduction: The Persian Wild Ass Equus hemionus onager is the only odd-toed ungulates (Perissodactyla) and largest wild herbivore in Iran, with a population of about 1300 individuals, distributed in the Bahram-e Gur conservation complex and Touran Biosphere Reserve. From the semi-captive reproduction ...
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Introduction: The Persian Wild Ass Equus hemionus onager is the only odd-toed ungulates (Perissodactyla) and largest wild herbivore in Iran, with a population of about 1300 individuals, distributed in the Bahram-e Gur conservation complex and Touran Biosphere Reserve. From the semi-captive reproduction and reintroduction centers, they had population growth in the centers of Yazd province and Kavir National Park. In other centers were not successful due to not considering demographic factors such as the age and sex composition of the founder population, intra- and inter-species competition, lack of information on genetic status and inbreeding and management factors such as hard release. In this study, the threats of the Persian Wild Ass in natural habitats, the state of reproduction and reintroduction centers, and management and conservation strategies have been discussed.Materials and Methods: Scientific sources, reports and documents available in the Semnan, Yazd, Fars and Kerman Provincial Office and the Wildlife conservation and Management bureau of the Department of the Environmental were studied regarding the threats, past and present population and fatalities of the Persian Wild Ass. Data collection was done by interviewing environmentalists, experts and completing species information forms including population, threats and expert suggestions of the respective provinces. Based on the field visits and investigation of natural habitats and reproduction and reintroduction centers in Fars and Semnan provinces, information was verified.Results: Over the past two decades, the population of the species has been growing in the Bahram-e Gur conservation complex, due to habitat management and the reduction of threats. While the species' population status in the Touran biosphere reserve has experienced a sharp decline since the 1970s and 1980s, and this trend has been almost stable for the past 20 years. The most important threats to the Persian Wild Ass due to human activities include destruction and fragmentation of habitats, poaching for meat, inbreeding, the occurrence of diseases in natural populations, seasonal use of vegetation, road kills, development of mines, drought, and climate change. Overgrazing by livestock reduces food availability, and also reduces the availability of water at springs. In semi-captive breeding and re-introduction centers, the lack of knowledge of the genetic status of populations, the very low growth rate, and infanticide are among the threats to the species. Management problems such as non-continuity of providing financial resources and equipment, lack of sustainable management with the passage of time, hard release due to lack of funds, equipment, and also non-observance of the gender ratio of the founding population can be effective in the failure of these centers.Discussion: The important strategies for conserving the Persian Wild Ass in the short- and long-term include identifying the threats and introducing methods to reduce the effect of the threat, developing a comprehensive plan for reproduction and reintroduction of the species, and implementing the action plan for the conservation of the population in the habitats. The implementation of participatory conservation programs with the key stakeholders can be effective in the conservation programs.
Azam Shahbeik; Rahele Pourmazaheri; Ahmad Taheri
Abstract
Introduction: One of the significant challenges metropolises faces is air pollution, which has many adverse effects on human health and the environment. Karaj, as an industrial city situated close to the country's major industries and power plants, is severely affected by air pollution from both mobile ...
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Introduction: One of the significant challenges metropolises faces is air pollution, which has many adverse effects on human health and the environment. Karaj, as an industrial city situated close to the country's major industries and power plants, is severely affected by air pollution from both mobile and stationary sources. The most important study carried out in the field of air pollution in Karaj city can be considered the air pollutant emission inventory of this city, which is stated for criteria pollutants in two categories of stationary and mobile sources, separately for each source.Methodology: After upgrading the air quality monitoring stations in this city, the current study can be considered the first comprehensive study of air pollutants in terms of their temporal and spatial trends. This study measured air quality in stations equipped with the analyzers of four gaseous pollutants, including ozone, carbon monoxide, nitrogen dioxide, and sulfur dioxide, along with two particulate pollutants, including particulates smaller than 2.5 and 10 microns. Furthermore, the city's air quality index, obtained from the total of monitoring stations, was analyzed.Results: The study finds that particulate matter smaller than 2.5 microns and ozone are the main pollutants in Karaj in hot and cold seasons, respectively. The other pollutants exceed the allowable air quality index, rarely. For a period of one-year, particulate matter smaller than 2.5 microns and ozone put the air quality index in the range of unhealthy for sensitive groups and unhealthy for the entire city of Karaj for 94 and 18 days, respectively. Also, this study investigated the pollutant transport effect using the combination of pollutant concentration data, wind speed, and direction. The dominant directions of pollutant transport to that station were determined for each air quality monitoring station. Based on the results of the present study, for PM2.5, as the most critical air pollutant in the city of Karaj, it can be found that the highest concentration and therefore, the most days with the index in the unhealthy range for PM2.5 has been registered in Metro and Zone 3 stations, in the cold seasons of the year (autumn and winter), respectively.Discussion: By examining the location of these two stations, they can be evaluated as traffic stations. Since the Metro station is located in the Karaj metro area, it is not only affected by the pollution caused by the transport fleet on the routes adjacent to the station (the most important of which is the Karaj-Qarvin freeway), but also the traffic and stops of buses and taxi fleets, which can cause the emission of suspended particles in that area. On the other hand, the station of zone 3 is located at a very short distance from Eram Boulevard, which is strongly affected by the pollutants emitted by the transport fleet on this route. Due to the secondary nature of Karaj's main pollutants, such as ozone in the warm season and a high portion of suspended particles smaller than 2.5 microns in the cold season, it is necessary to reduce air pollution through modeling that incorporates photochemical reactions in the atmosphere.
Environment Assessment
Mehdi Mehdinasab; Masood Bagherzadeh Karimi
Abstract
Environmental Impact Assessment is an important management tool that identifies natural and anthropogenic environmental hazards and their wide-ranging impacts and determines appropriate control calculations. Correct and accurate knowledge one of the threatening factors of wetlands Based on their importance ...
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Environmental Impact Assessment is an important management tool that identifies natural and anthropogenic environmental hazards and their wide-ranging impacts and determines appropriate control calculations. Correct and accurate knowledge one of the threatening factors of wetlands Based on their importance and impact can provide the basis for preventing and counteracting these factors more precisely, as well as preparing and implementing wetland conservation and environmental management plans. The vulnerability assessment method of Poldokhtar wetlands in this study is based on EFMEA failure states analysis method. for this purpose, first identify the most important environmental risks and threats in the hunting and hunting area of Poldokhtar wetlands in three categories of ecological, hydrological and social threats to 17 threats, then based on three variables: "probability, severity and extent of impact" Numerical values of each threat were determined and ranked according to the range of changes in five categories. The results showed that ecologically: wildfires and drainage in Gori Balmak and Piqué wetlands, hydrologically threatening to increase suspended sediment load, periodic droughts, and drilling deep and semi-deep wells in wetlands and social aquifers: low levels Environmental attitudes and knowledge of wetlands by the local community, lack of expert and wetland environments in the Department of Environment of the city and province are the most important threats in the 11 wetlands ecosystem of Poldokhtar. Overall, 88.2 percent of the risks were classified as risk-free, low- and medium-risk, and only 18.8 percent were high and infinite, requiring immediate action by wetland conservation and mitigation authorities.
Rasool Zamani-Ahmadmahmoodi; Ehsan Fathi; Samira Bayati; Zeinab Akbari
Abstract
Various indices are used to assess the suitability of water quality for drinking and agricultural uses. The aim of this study is to investigate the water quality of rivers in Beheshtabad watershed for irrigation purposes. Some water quality parameters were measured in 4 selected stations monthly during ...
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Various indices are used to assess the suitability of water quality for drinking and agricultural uses. The aim of this study is to investigate the water quality of rivers in Beheshtabad watershed for irrigation purposes. Some water quality parameters were measured in 4 selected stations monthly during spring and summer 2013 and 2019 with using the standard methods. Then, SAR, RSC, SSP, KR, PI and MAR indices were calculated. According to the results, the water quality of the stations was in good condition in terms of PI with values less than 80 mg/l, was in good condition in terms of KR with values less than one and in terms of SSP with values less than 200. The water of the studied rivers was hard in terms of total hardness, sweet in terms of total dissolved solids, and had a good condition in terms of permeability index, residual sodium carbonate, soluble sodium percentage, Kelly’s Ratio, magnesium adsorption ratio indices. According to water quality indices, water quality did not change in 2019 compared to 2013. According to the Wilcox diagram, the water of these rivers were in class C2S1, suitable for agricultural use, and according to the Piper diagram were located in Bicarbonate-Magnesium-Calcium group, in the category of water with temporary hardness. In general, evaluation of water quality of these rivers showed that the water of these rivers did not have limitation in terms of agriculture and were almost acceptable and suitable for irrigation.
Sustainable Development
mohadeseh moradpour; Fazlolah Agamohamadi; seyed Farzad Hoseini
Abstract
Introduction: Ports play an important and strategic role in the growth and development of a country; Therefore, the development of ports is an important driver for the economic, social and regional growth of countries. A key and practical concept to achieve port development is the concept of sustainable ...
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Introduction: Ports play an important and strategic role in the growth and development of a country; Therefore, the development of ports is an important driver for the economic, social and regional growth of countries. A key and practical concept to achieve port development is the concept of sustainable development. Shahid Rajaei port of Iran is considered the most important import and export gate of the country due to its unique geographical location. Therefore, the most important goals of this research are to identify the effective and key indicators of sustainable development in Shahid Rajaei port of Iran and to prioritize these indicators.
Materials and methods: In order to identify the key indicators of sustainable development in Shahid Rajaei port and prioritize these indicators, by reviewing the literature, sustainability indicators were identified and extracted from the research literature. In the second step, in order to prioritize the indicators, a questionnaire was designed and provided to the sample of the research statistical community. which includes managers, officials and officials of various port departments and experts and experts in this field. The sampling method in this research is a non-probability and non-random judgment. In the next step, AHP and SWARA multi-criteria decision making methods were used to rank the indicators. In the following, related software such as Excel and Super Decisions were used. Finally, average ranks and Copeland methods were used to integrate the results to achieve a prioritization.
Results: According to the obtained results, the economic dimension is the most important dimension of sustainability; Then, social and environmental aspects are important. The findings show that in terms of education level, the majority of research experts have master's and doctorate degrees and are at a high level scientifically. And due to the fact that most of the experts have more than 15 years of work experience, they are experienced people with high work experience.
Discussion: In the environmental dimension, the indicators of identifying types of environmental pollution and waste management were ranked first. In the economic dimension, the index of the amount of investment and the increasing trend of the market share and the index of access to road, rail and air transport lines were ranked first in two methods. In the social dimension, the index of job creation and high quality of port services ranked first. The results of this research can be a basis for the improvement and growth of sustainability in the port and to provide the managers and authorities of the port with proper direction and vision in the field of sustainable development, to take appropriate decisions and actions in the future.
Biodiversity & Biosafety
Jalil Badam Firouz; Mona Izadian; Farhad Hosseini Tayefeh
Abstract
The Cartagena Protocol was adopted to achieve a common and coordinated solution for the transboundary movement of transgenic organisms, establish confidence and legitimacy in the field of biosafety regulations in the world, and increase global coordination. Under Clause 2 of Article 23 of the Protocol, ...
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The Cartagena Protocol was adopted to achieve a common and coordinated solution for the transboundary movement of transgenic organisms, establish confidence and legitimacy in the field of biosafety regulations in the world, and increase global coordination. Under Clause 2 of Article 23 of the Protocol, States Parties are required to consult with the public and public institutions on the decision-making and policy-making of genetically modified species and to make the results of such consultations available to the public. In recent years, transgenic products have entered the diet of the Iranian people, but there has made no proper awareness about their benefits or harms for the people. Since the genetic structure of transgenic plants is altered through genetic engineering, and this change is usually done to improve the plant's resistance to certain pests or plant diseases, there is concern that these plants have also become resistant to drugs and cause abnormalities and the spread of diseases in humans. The Cartagena Protocol emphasizes the need for labeling, but despite the use of transgenic products in Iran, labeling and percentaging have not been done on all products and it is necessary to pay special attention to the implementation of the latest regulation of the Food and Drug Administration regarding transgenic events.
Water Pollution
Rasool Zamani-Ahmadmahmoodi; Esmaeil Pirali Kheirabadi; Hossein Rahimi Pordanjani
Abstract
Introduction: Aquaculture includes the propagation and husbandry of aquatic plants, animals, and other organisms for various purposes, including commercial, recreational, and scientific use, which has gained significant attention in recent times. However, its uncontrolled development like any other production ...
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Introduction: Aquaculture includes the propagation and husbandry of aquatic plants, animals, and other organisms for various purposes, including commercial, recreational, and scientific use, which has gained significant attention in recent times. However, its uncontrolled development like any other production activity, can have adverse environmental effects, Thus, the removal of water pollutants is crucial. This study aimed to investigate the impact of a mechanized water disinfection device that uses ultraviolet (UV) radiation at different doses to reduce microorganisms in the effluent of rainbow trout farms. Also, the efficiency of the device in deactivating pathogens was investigated in different flow rates and water turbidity levels.Materials and Methods: The study was conducted in a rainbow trout farm with a 30-ton capacity, located in Kiyar County, approximately 30 kilometers from the center of Chaharmahal and Bakhtiari province. The UV device, at various doses (60, 120, 180, and 240 mW/cm2 = joule), was applied to the farm's effluent, considering different levels of turbidity and flow rates (ranging from 2.5 to 25 liters per second). Water samples were collected both before and after the installation of the UV disinfection device. Subsequently, the average counts of total coliforms, fecal coliforms, fungi, and yeast were calculated with three replications. Probit regression was utilized within the SPSS software environment, with a statistical significance level of 0.001, to examine changes in the removal percentage of microorganisms at different UV doses. Graphs were created using Microsoft Excel 2016 software.Results: The findings indicated that increased water flow rates and water turbidity reduced the efficiency of removing the targeted microorganisms. The findings indicated that increased water flow rates and water turbidity reduced the efficiency of removing the targeted microorganisms. Moreover, higher UV doses led to a higher removal percentage of total coliforms, fecal coliforms, fungi, and yeast. For instance, at a dose of 56 mJ/cm2, the total counts of total coliforms, fecal coliforms, fungi, and yeast decreased by 1.7, 3.2, 0.7, and 0.86 logs, respectively. However, complete removal of yeasts required significantly higher UV doses, depending on water flow rates and turbidity (up to a maximum of 240 mJ/cm2). Additionally, the results of the probit regression indicated that at doses of 40.50 mJ/cm2, 20.22 mJ/cm2, 30.31 mJ/cm2, and 14.36 mJ/cm2, approximately fifty percent of the yeast population (P<0.001), fungi (Z=13.5, P<0.001), fecal coliform (Z=22.77, P<0.001), and total coliform (Z=6.8, P<0.001) would be removed.Discussion: In summary, this research demonstrated that at a dose of 20 mJ/cm2, the gradual elimination of microorganisms begins, but at doses higher than 120 mJ/cm2, the intensity of elimination decreases. Therefore, adjusting the doses of ultraviolet radiation based on the water quality of fish farms can help maintain system health and subsequently increase productivity. The insights obtained from this study can be valuable for commercial water treatment systems and recirculating aquaculture systems. More studies are needed for the efficiency of removing viruses in water by UV rays. It is recommended to construct a sediment pond and employ various water filtration methods, including sand filters, before utilizing ultraviolet rays. This approach aims to decrease the presence of suspended particles in the water and enhance the efficiency of the disinfection system.
Environmental Education
Mohammad Babaei; Assadollah Mehrara; Mehrdad Matani; Mohammad Reza Bagherzadeh
Abstract
The concept of clean environment is one of the most important and significant macro principles in the policy of the whole country. This is especially important among countries with large oil and gas capital (which is one of the major polluters of the environment). Because today, the human and economic ...
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The concept of clean environment is one of the most important and significant macro principles in the policy of the whole country. This is especially important among countries with large oil and gas capital (which is one of the major polluters of the environment). Because today, the human and economic costs of achieving a sustainable environment are estimated at billions of dollars. Due to its oil and gas industry, Iran is one of the countries that pays special attention to the environment and pollutants from its activities and has always sought to design and apply various models and models to reduce oil and gas pollutants. In this article, the authors have devoted their efforts to designing an environmental model of sustainable development in the Iranian gas industry. The combined research method is based on mixed exploratory research (qualitative-quantitative). The statistical population of the present article is based on 1080 people and using the snowball method to achieve theoretical saturation with 25 experts, in-depth interviews were conducted and in a quantitative part, to measure the model, a researcher-made questionnaire by cluster sampling method Relative was distributed among 285 samples. The validity of the questionnaire was confirmed by face and content method and its reliability was confirmed by Cronbach's alpha method. Data were analyzed by exploratory and confirmatory factor analysis with SPSS and AMOS software. The results of the qualitative section indicate that the environmental model of sustainable development has 15 dimensions in terms of causal conditions (1. service mission, 2. safety and health requirements, 3. social responsibility), underlying conditions (4. education and learning, 5 Culture building, 6. Attitudes and knowledge of managers), intervention conditions (7. Contractors, 8. Technical facilities and equipment, 9. Technology and technical operations), strategy (10. Medium and long-term policies of the Ministry of Energy, 11. Supervision and Continuous evaluation of project progress is 12. Customer Consumption Management Programs, 13. Residual Pollution Management Programs) and Outcome (14. Improving the Environmental Performance of the Gas Company and 15. Moving Towards Sustainable Development). The results of the quantitative section showed that all dimensions of the research paradigm model were confirmed.
Wild Life
Somayeh Arazi
Abstract
Habitat assessment is one of the pillars of wildlife management and protection. In the study, the evaluation of Pika habitat in Adoroshk watershed was performed using the maximum entropy algorithm model (MaxEnt). According to the principles of cartography from the geographic reference map topography ...
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Habitat assessment is one of the pillars of wildlife management and protection. In the study, the evaluation of Pika habitat in Adoroshk watershed was performed using the maximum entropy algorithm model (MaxEnt). According to the principles of cartography from the geographic reference map topography to extract the boundary of the region, the digital height model for the preparation of the classified map (Dem) of elevation changes, Slope and geographical domain were used. In order to prepare the environmental layers to enter the model MaxEnt, ArcGis software version 10.3 was used. Sampling was performed using random linear transect method and binoculars through direct observation of cheeks and indexes in spring and summer of 2019 and the number 33 points of Pika,s presence were recorded by GPS. Validation of the model was performed using the area under the curve (AUC) and the usefulness of the variables by analyzing the Jacknife test. The results showed that the desirability of Paika habitat in the Adoroshk watershed is mainly in rocky and mountainous areas with grass and shrubs at altitudes above 2500 meters above sea level and slopes. It is more than 50%. The climate was considered suitable for temperate pike. Favorable areas for Paika constitute 275 hectares (17.46%) of the habitat. It was also found that in Adoroshk, Paikas prefer the western slope.
Environmental Education
Fateme Pourghasem; Amirhossein Alibaygi; Abdolhamid Papazan
Abstract
This qualitative research was conducted with the aim of investigating the challenges of rural women's environmental literacy extension in Kermanshah province. The study population consisted of experts’ environment, natural resources, agricultural extension and nongovernmental organizations in Kermanshah ...
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This qualitative research was conducted with the aim of investigating the challenges of rural women's environmental literacy extension in Kermanshah province. The study population consisted of experts’ environment, natural resources, agricultural extension and nongovernmental organizations in Kermanshah province. Samples were selected using purposeful and criterion sampling method. Content analysis of data showed that the lack of systematic, comprehensive and appropriate planning with context, the lack of accountability and responsibility for environmental issues, the lack of between and within sections communication, the lack of priority of rural women in environmental education, problems related to the provision of skilled force and adequate funding for education, especially for women's education, inefficient policies and organizational structure and the lack of environmental perspectives has led to the lack of planning and proper implementation of programs and environmental education, especially for women. The results of this study can help planners to improve the level of environmental education for rural women.
Moslem Savari; Fatemah Naghibeiranvand
Abstract
The main purpose of this study was Factors influencing the use of environmentally sustainable operations. The statistical population of the study was all wheat farmers in Khorramabad County (N= 22500). Using Cochran’s sampling formula, 240 of them were selected as a sample. Using Cochran's sampling ...
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The main purpose of this study was Factors influencing the use of environmentally sustainable operations. The statistical population of the study was all wheat farmers in Khorramabad County (N= 22500). Using Cochran’s sampling formula, 240 of them were selected as a sample. Using Cochran's sampling formula, 240 of them were selected as a sample (N=240). The main instrument in this study was questionnaire which its validity was confirmed by the panel of experts and the reliability of it was also calculated by using a sequential alpha test and through software. Data were analyzed by SPSS18 software. The results showed that the studied farmers do not have a favorable knowledge and attitude towards sustainable environmental practices. The results of the discriminant analysis showed that the six variables of Attitude towards sustainability, knowledge of sustainability, environmental concern, spatial attachment, social capital and non-farm employment have the greatest impact on the separation of agricultural groups (accepting and rejecting environmental sustainable operations). In summary, the discriminant function from these six variables is able to accurately differentiate the studied persons with 87.28% accuracy in accepting and rejecting environmental sustainable operations.
Reza Fathi; Amirhossein Sayyahzadeh
Abstract
Population growth has increased the need for energy especially use of fossil fuels, which in turn is lead to increase carbon dioxide in the atmosphere, which is a type of greenhouse gas that leading to enhance global warming. This global warming can put plant and animal habitats in danger and change ...
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Population growth has increased the need for energy especially use of fossil fuels, which in turn is lead to increase carbon dioxide in the atmosphere, which is a type of greenhouse gas that leading to enhance global warming. This global warming can put plant and animal habitats in danger and change climate patterns, resulting in floods, droughts and severe destructive storms. One of the ways that reduces carbon dioxide in the atmosphere is geological carbon dioxide storage, which requires a porous reservoir with an impermeable sealing caprock that laying on the reservoir. The importance of caprock is to inhibit the movement of submerging carbon dioxide, saline and the other existence materials preventing leakage of these materials into the upper formations. Caprock should be able to withstand in-situ stress changes and physical and chemical properties changes. The purpose of this paper is to review geological carbon dioxide storage methods and the mechanism of caprock in carbon dioxide storage. The research method is an overview of related sources and references. According to the results of this study, the sealing pressure of the caprock should be distinguished before the injection process and during the injection process should not exceed a certain amount. Likewise, before the injection of carbon dioxide, its temperature should be proportionate to the temperature of the reservoir to avert caprock failure and it is better to take the geochemical, geomechanical, thermal and flow path properties in experimental and simulation works into consideration for a better understanding of caprock’s behavior and structure.
Environment Assessment
Roya Taji; Mozhgan Ahmadi Nadoushan
Abstract
In recent years, population growth, increasing vehicles, and industrial development have caused air pollution. One of the major disasters, creating significant problems for human and endangering their health is air pollution. The main objective of the present study was to select best sites for air pollution ...
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In recent years, population growth, increasing vehicles, and industrial development have caused air pollution. One of the major disasters, creating significant problems for human and endangering their health is air pollution. The main objective of the present study was to select best sites for air pollution monitoring stations in zones 1 and 3 of Isfahan city using fuzzy technique and analytical hierarchy process (AHP). Accurate monitoring of the air pollution condition requires accurate and appropriate dispersion of monitoring stations throughout the study area, so that the optimal locations of these stations can be selected using fuzzy and AHP methods. In the present study, considering the necessity of determining the location of air pollution monitoring stations, the best sites for these stations were selected based on important criteria such as distance from market, recreation areas, parks, parking areas and existing stations using fuzzy and AHP methods. The results showed that Fuzzy-AHP method was flexible and accurate method to determine the appropriate areas for air pollutant monitoring stations.
Farshad Razmavar; Moslem Savari
Abstract
The water crisis, especially in the agricultural sector, has emerged as a major concern for policymakers in developing countries. Today, however, water scarcity is one of the main deterrents in agricultural production and plays an important role in the lack of food security. Therefore, the main purpose ...
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The water crisis, especially in the agricultural sector, has emerged as a major concern for policymakers in developing countries. Today, however, water scarcity is one of the main deterrents in agricultural production and plays an important role in the lack of food security. Therefore, the main purpose of this study is to identify barriers to water protection and design water protection mechanisms in the agricultural sector. Due to the application of the qualitative approach in this study, Semi-structured interview with 17 farmers in Dashtestan as one of the agricultural areas with a dry climate affected by the recent drought in southern Iran were used. To analyze the results of this study, the paradigm model of Strauss and Corbin has been used to design an appropriate mechanism to overcome this crisis. Based on the analysis of the results of factors such as cultivation of irrigated crops by farmers, increasing area under cultivation, lack of budget and sufficient funds to the agricultural sector, warm weather in recent years, reduced rainfall in recent years, recent droughts, traditional irrigation system (flooding) Lack of facilities (such as loans to change the irrigation system), digging illegal wells in the area and improper water consumption culture were the most important obstacles to water protection from the perspective of farmers. Therefore, in order to get out of this problem, the identified factors were classified and analyzed in the form of 6 mechanisms: human, mental, environmental, supportive, regulatory, legal, and economic.
Marine Environment
Hamidreza Akbarpoor; Bagher Mirabbassi; Ehsan Kamrani
Abstract
Marine pollution has long been cited as one of the priorities and high-level goals of the International Maritime Organization (IMO), with marine pollution by dumping of wastes being considered one of the most important issues raised by IMO. The present study seeks to study the performance of IMO as the ...
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Marine pollution has long been cited as one of the priorities and high-level goals of the International Maritime Organization (IMO), with marine pollution by dumping of wastes being considered one of the most important issues raised by IMO. The present study seeks to study the performance of IMO as the authority in charge. Overall, IMO has paved the ground for tackling different types of marine pollution through changing its structure and bringing it in line with the objectives stipulated in its statute. The establishment of the Marine Environment Protection Committee and the subsequent formation of the Sub-Committee on Pollution Prevention and Response clearly demonstrate IMO's special emphasis on combating different types of pollution, particularly pollution by dumping of wastes. In addition, drafting and ratifying the special Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (London Convention) and its Protocol has greatly helped concentrate efforts aimed at fighting this type of pollution. The Convention and its Protocol govern waste disposal control through implementing supervisory programs. Moreover, the Convention initially targeted disposal of a certain type of waste and further narrowed the scope of the regime gradually, which led to further protection of the marine environment and marine interests, including marine economic interests. Overall, the London Convention and its protocol have made waste disposal pollution the focus of the maritime community and provided appropriate legal tools to control and prevent this type of pollution.
Environment Assessment
Gholamreza Sabzeghabai; Madineh Vahabipour
Abstract
Urban rivers are one of the most important spaces that potentially reflect the presence of nature in the city and provide the ability to draw natural elements among the artificial elements. In addition to their natural changes, rivers undergo many changes due to human activities. One of the most important ...
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Urban rivers are one of the most important spaces that potentially reflect the presence of nature in the city and provide the ability to draw natural elements among the artificial elements. In addition to their natural changes, rivers undergo many changes due to human activities. One of the most important changes that are imposed on rivers is the improper use of their resources for use in construction activities. Thousands of tons of sand are harvested daily from the bed and banks of the country's rivers, which has various negative consequences. Among the most important of these consequences are the changes in the morphology of the river, river mud and threat to the life of aquatic animals and birds, loosening of the bed edges and threats to the inhabitants of the river, destruction of structures around the river, reduced tourism and ...This study was conducted in the summer of 1397 and the study area in this study was part of the Bashar River, which is located within the city of Yasuj. There are 9 sand factories in this area, all of which were illegally extracting sand from the riverbed. According to the pictures taken by the Environment Department of Yasuj city, the changes in the river during sand extraction and after the closure of the factories were identified. The results showed that after the closure of the factories, the vegetation of the river area was somewhat restored and the aquatic and bird species found a better situation in terms of quantity and quality characteristics.
Biodiversity & Biosafety
Reza Sheikhakbari-Mehr; Zahra Khalili; Younes Asri; Mehdi Ramezani
Abstract
Introduction: Plants play a key role in the balance of ecosystems and therefore are vital for the sustainability of the environment. Any knowledge about the plant species of a region is considered the basic principle for other research and can be a starting point for future supplementary studies. Biodiversity ...
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Introduction: Plants play a key role in the balance of ecosystems and therefore are vital for the sustainability of the environment. Any knowledge about the plant species of a region is considered the basic principle for other research and can be a starting point for future supplementary studies. Biodiversity is one of the important aspects of life, especially considering the climate and land use. Destruction of the environment and natural resources has caused the extinction of plant and animal species and consequently, the reduction of biodiversity in the world. Given that today humans are facing numerous environmental issues and threats to biodiversity, the best way to save biodiversity and understand its values is to continuously evaluate and monitor natural habitats. The present study was conducted with the aim of investigating and analyzing plant biodiversity in the Plang-Dareh protected area in Qom province, as well as determining the endemism and conservation status of plant species in the area. The results obtained from this research can be used to explain the role of protected areas in the preservation and maintenance of genetic resources, environmental health and the development of appropriate management-protection plans.Materials and Methods: Palang-Dareh protected area is located southwest of Qom province. In order to make a contribution to the flora of the region during periodic visits, plant samples were collected in the growing seasons for two consecutive years. Any information about collected samples was noted, and the samples were pressed and dried. Plant species were identified using relevant Floras. In addition to determining the endemic and conservation status of plant species, the life form of plants was determined based on the Raunkier method and the chorology of plant species in the study area was determined using Zohari and Leonard classification. In order to evaluate the biodiversity of vegetation along an altitude gradient, the height (a.s.l.) in the study area was divided into three zones (1600-1900, 1300-2200, 1600-1900 meters). Systematic-random sampling was done from different altitude zone of the study area and biodiversity indices were calculated.Results: Based on our results there are 171 plant species belonging to 126 genera and 46 families in the studied area. The family Asteraceae is the richest plant family in Palang-Dareh. In terms of life form, 45% of the species belong to hemicryptophytes and 22% to therophytes. The chorology of the species showed that more than 65% of the flora of the Palang-Dareh protected area belong to the Irano-Turanian chorotype and 12% belong to the Irano-Turanian and Mediterranean phytogeographical regions. 15% of the identified species are endemic to Iran and some plants are on the list of vulnerable or endangered species. The evaluation of biodiversity indices in different altitude zones revealed that the species diversity and species richness indices have reached their maximum in the intermediate altitude zone and the species diversity decreases with increasing altitude.Discussion: Having comprehensive knowledge about the vegetation of an area is an essential and the first step in solving ecological issues such as biodiversity conservation, natural resources management and, assessment of environmental conditions. The dominance of a dry climate as well as over-grazing and unauthorized human activities have led to the high prevalence of certain plant species (known as indicators of destruction) and also therophytes in the studied area. Enjoying diverse vegetation and suitable natural habitats, protected areas have an essential role in biodiversity conservation. Based on our results some endemic plants of the area have vulnerable or endangered conservation status so that, more precise conservation plans should be put on the agenda.
Elham Shafaii Moghadam
Abstract
Introduction: One way to avoid harming the environment is to change the behavior of citizens towards environmental behavior, which consciously seeks to reduce the negative effects of individual behavior on nature. These changes in the field of environmental behaviors include environmental protection ...
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Introduction: One way to avoid harming the environment is to change the behavior of citizens towards environmental behavior, which consciously seeks to reduce the negative effects of individual behavior on nature. These changes in the field of environmental behaviors include environmental protection behaviors and reduction of the negative effects of human actions on the environment in daily tasks. As well as specific outdoor programs, it creates the emergence of a new form of citizenship that Dobson has called environmental citizenship. In preliminary studies on environmental behaviors, the use of models based on knowledge and attitude toward environment was common. But the inefficiency of these approaches led researchers to model ethical norms such as the model derived from value theory. The Stern's Belief – Norm theory (1999) suggests a chain of variables, from public values and concerns about the environment to specific beliefs about the negative consequences of certain activities, while emphasizing the ability and responsibility of individuals to avoid these negative consequences and enable their personal norms to protect the environment. In this research, according to stern value-belief-norm theory, environmental citizen behavior in the second type of environmental behaviors and altruistic value from values and responsibility section of beliefs and beliefs of this theory has been selected and explained the behavior of citizens' environmental citizenship.Materials & Methods: The statistical population of this study is citizens aged 18 years and over in Kashan city in 2020, the sample size is equal to 352 people and for sampling, cluster method has been used. Responsibility and altruism variables with 14 items and environmental citizenship behavior variable with 13 researcher-made items have been measured in the form of 5-point Likert range. To measure the bases of the head, the Cholo and Alphd are used, according to the suitability of the situation, to verify the variables of the subject, to test the theory of the party to be a T, and to the point of a theory, a point to which the subject is used by point of reference to the point in each point of the movement.Results: According to the findings, Kashani citizens have a favorable status in terms of altruism, responsibility and citizenship behavior and the mean of these variables among them is higher than average, the relationship between altruism and responsibility with environmental citizenship behavior with correlation rate (r=0.61, r and sig=0.000, respectively). It is meaningful. Also, based on the volume model, the effect of two variables of altruism and responsibility with (0.275 and F=2=0.245) is moderate, respectively. The amount of Q2 is 0.269. This amount indicates that the predictive power of the model is moderate. In addition, the partial mediation effect of the accountability variable for the relationship between altruism and environmental citizenship behavior has been confirmed, so that VAF value is equal to 0.384. It is believed that 38% of the effect of altruism on environmental citizenship behavior is explained indirectly by the mediator variable of responsibility. Discussion: The results of this study represent an attempt to understand the principles of environmental law, and that by 1404 the previous scholars had been given a clear understanding and a feeling of concern for the environment and its problems. Therefore, considering the importance and role of responsibility in environmental citizenship behaviors is suggested that voluntary and active environmental groups and organizations among citizens be increased in order to strengthen their sense of commitment and responsibility while assigning some environmentally related tasks to citizens.
Environmental Economics
younes nademi; maasoumeh Dalvandi
Abstract
Introduction: In recent years, environmental problems have attracted the attention of many policymakers. In many developing countries, foreign direct investment and environmental risk play a vital role for economic growth and development. Therefore, it is necessary to examine the relationship between ...
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Introduction: In recent years, environmental problems have attracted the attention of many policymakers. In many developing countries, foreign direct investment and environmental risk play a vital role for economic growth and development. Therefore, it is necessary to examine the relationship between foreign direct investment and environmental risk. In this regard, the present study examines the role of financial development in the relationship between foreign direct investment and environmental risk.Materials and Methods: In the present study, the stationary of the variables was first evaluated by using the ADF test and then by applying Kao cointegration, the long-run relationship between the variables of the model has been examined. Finally, the effect of financial development, foreign direct investment, GDP per capita and urbanization on environmental risk for 35 countries during the period of 1990-2021 was investigated using generalized panel moments. For the analysis and estimation of the model, Eviews_12 software has been used.Results: According to the ADF unit root test, some variables are stationary at the level and some are stationary at the first order difference, to avoid false regression in estimations, co-accumulation between variables was investigated. The results of the Kao cointegration test confirmed the long-term relationship between the variables. Also, the results of generalized method of moments model show that foreign direct investment has a negative and significant effect on environmental risk. Most foreign direct investment comes from developed countries with strict environmental regulations; hence, they can transfer superior environmental technologies to the host country. Finally, foreign direct investment paves the way for promoting environmental sustainability in the host country. Also, the development of the financial sector reduces the environmental risk in both models because financial development helps to provide more information about the importance of the environment, especially in developing countries, due to the provision of financial resources and the possibility of accessing more efficient technologies and in model 2, there is a non-linear U-shaped relationship between financial sector development and environmental risk. The FD × FDI interaction term also has no significant effect on environmental risk. The results also show that economic growth and urbanization reduce environmental risk.Discussion: This study states that the development of the financial sector in developing countries can increase the quality of the environment. However, the results may be different in a developed financial sector. Most foreign direct investment comes from developed countries with strict environmental regulations; hence, they can transfer superior environmental technologies to the host country. Finally, foreign direct investment paves the way for promoting environmental sustainability in the host country. On the other hand, with the increase in real income, people have more ability to allocate resources to protect the environment and reduce environmental risk. Also, economic growth resulting from improved technology can provide higher returns with lower environmental risk. Urbanization is also beneficial for the environment due to higher living standards, increased public health, positive external effects and economy of scale.
Environmental Economics
Mohammad Ebrahiminejad
Abstract
The green marketing movement has been in the spotlight of companies and customers since the 1980s. These companies are looking for social legitimacy, by producing and offering environmentally friendly products while customers are looking to influence the community's view of environmental issues. The ...
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The green marketing movement has been in the spotlight of companies and customers since the 1980s. These companies are looking for social legitimacy, by producing and offering environmentally friendly products while customers are looking to influence the community's view of environmental issues. The aim of this study was to investigate the attitudes of exporters towards green marketing and its effect on Iranian caviar exports. To succeed in the field of international competition and transform the country's economy into a strong and stable economy, all available capacities must be used. Caviar exporting companies can achieve high performance internationally through their green export marketing planning. To achieve this, companies must be able to identify the specific interests and needs of each market to export their product to foreign markets based on these needs. On the other hand, these companies can increase their gross profit by creating added value by direct export and shortening the length of the value chain. Pricing can also be done through competitive systems in any market, and in a way that can be highly desirable for buyers along with product features. Companies can improve the effectiveness of their marketing processes by conducting foreign marketing advertisements with emphasis on cultural, social, food, and pharmaceutical characteristics.