List of Articles ارزیابی اثرات محیط‌زیستی

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  1 - The Role of Landscape Ecology Spatial Structure Analysis in Environmental Impact Assessment (EIA) (Case Study: Miankaleh International Wetland)
  Soolmaz Dashti Gholam Reza Sabzghabaei Kaveh Jafarzadeh Mojgan Bazmara Baleshti
  10.22034/jest.2018.22301.3135
  Background and Objective: The use of environmental impact assessment methods is one of the important tools in environmental management studies and the reduction of potentially harmful environmental factors in sensitive areas such as wetlands to achieve sustainable devel More

  Background and Objective: The use of environmental impact assessment methods is one of the important tools in environmental management studies and the reduction of potentially harmful environmental factors in sensitive areas such as wetlands to achieve sustainable development. The purpose of this study is to investigate the status of spatial composition and distribution of Miankaleh International Wetland and also to evaluate the efficiency of land features measurements to assess environmental effects. Method: For this purpose, first Landsat 7 and 8 satellite images of ETM + and OLI sensors related to 2001 and 2016 were prepared. Then, by performing the necessary processing and preprocessing, the land use map was prepared and the raster maps were entered into FRAGSTATS 4.2 software was performed. Findings: According to the results, it can be said that the water zone of the wetland (which is the most important part of the wetland) and consequently the wetlands of the wetland have a large area and has not become fine and stained, but during the study period Deleted part of its domain. The use of vegetation and man-made lands has also disrupted the natural environment by creating new spots and fragmentation. Agricultural use has not been in the form of spots and the increase in its area has been in the form of large spots. Discussion and Conclusion: According to the stated results, proper management in the wetland environment is not implemented. Because the current management of Miankaleh wetland is a hardware and old management, also due to the location of this wetland in two provinces, it does not have an integrated management and the management plan is scattered and multiple. As a result, by creating an integrated and coherent management plan, the problems of this wetland can be overcome to some extent. The present study well showed that land use measurements are a suitable tool for assessing environmental impacts in the shortest time. Manuscript profile
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  2 - Modified ICOLD Results Equivalency with the Aim of Using the Decision of Iranian Leopold Procedure in Water Resource Development Projects (Case Study: The Physical Environment of Peyghamchay Dam)
  Ali Dehnavi Kamran Kouzehgar
  10.22034/jest.2018.20813.2984
  Background and Objective: Different methods are used in environmental impact assessment (EIA), like matrix methods which are included Leopold, Moore, conventional and modified ICOLD and etc.  Since the conventional and modified ICOLD results are mainly qualitative More

  Background and Objective: Different methods are used in environmental impact assessment (EIA), like matrix methods which are included Leopold, Moore, conventional and modified ICOLD and etc.  Since the conventional and modified ICOLD results are mainly qualitative and decision making for implementation or non- implementation of the project would be difficult. Therefore, the aim of present study is offering strategy to normalize the results of modified ICOLD in order to compare with the results of Iranian Leopold method, while investigation and comparison between the results of the EIA has been taken by using the conventional and modified ICOLD matrices. Method: For this purpose, we used the EIA tools on the physical environment and only at the construction phase of Peyghamchay embankment dam, as a case study. Initial scrutiny was performed using both conventional and modified ICOLD points out that although the number of positive and negative impacts are the same in groups (+96, -235), but the impact values was quite different in two methods. Findings: The value of positive impacts of conventional and modified ICOLD are +156.0 and +260.2 and the value of negative impacts are -341.0 and -392.8, respectively. These amounts ​​indicate an increase in the value of positive and negative impacts of 66.8 and 15.2 percent in modified ICOLD method compared to conventional, respectively. The normalized results of modified ICOLD method point out that the final value of physical environment impacts compared with principles of decision-making in Iranian Leopold method amounts to +0.83 and -1.08 for positive and negative results, respectively. In this case, for the physical environment, implementation of the project can only be carried out by recommended reforms. Discussion and Conclusion: Considering the strategy presented in this research (the normalization of the results in modified ICOLD method), this method can be utilized exclusively and effectively, therefore, there would be no need to use the both methods for evaluation at the same time. Manuscript profile
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  3 - Application of Simplex method and Mitigation Concept in Participatory Environmental Impact Assessment (Case study: Compost Plants and Landfill Alternatives in Golestan Province)
  Samaneh Deziani Abdolrasoul Salmanmahiny
  10.22034/jest.2017.10733
  Background and Objective: Environmental impact assessment studies are one of the proper means of ensuring a sustainable development. Determining limitations and mitigation procedures for the negative effects compose the main core of the EIA procedure, in case the sugges More

  Background and Objective: Environmental impact assessment studies are one of the proper means of ensuring a sustainable development. Determining limitations and mitigation procedures for the negative effects compose the main core of the EIA procedure, in case the suggested development has been allowed. In this study, impact assessment has been applied for five suggested compost and landfill sites in Golestan Province of Iran. Method: In this study, considering the associated costs, linear programming has been applied to rank the proposed landfill and compost plant sites. For this purpose, GIS data has been used and the optimum site selection process has been implemented. The site has been determined so as to minimize the likely impacts. Findings: The results show that by using linear programming, site 1 on the eastern part with a slight difference to others, and site 5 in the west,ern part with the least goal function value are the best. The most effective parameters for the sites 1 to 4 is underground water pollution, and for site 5 is loss of valuable land. However, at the site 5, the impact on the neighboring no-hunting area is more important than underground water pollution, considering costs and the required time for mitigation efforts. Conclusion: Using the minimum and maximum levels of mitigation levels shows that increase of mitigation can reduce pollution, and vice versa. Sensitivity analysis confirms the accuracy of this method. Manuscript profile