فهرست مطالب solmaz amoushahi

The negative effects of soil salinity on natural and human environments have turned such phenomenon into one of the serious threats to the sustainable management of arid and semi-arid areas. The present study aims to evaluate the spatial-temporal variations in land use/land cover and soil salinity in a part of Sistan basin located in the arid regions of southeastern Iran, which has been exposed to the phenomenon of soil salinity during the recent years. To this aim, land use/land cover and soil salinity maps were prepared for 1989 and 2019 using the measurements obtained from ground sampling and instruments such as remote sensing (RS) and geographic information system (GIS). Based on the results, the normalized average soil salinity was 0.322 during 1989, reaching 0.52 during 2019 with a growth of 0.188. In addition, comparing the trend of salinity increase and land use/land cover variations in the region indicates that such factors affect each other significantly. Further, the conversion of land use/land cover from irrigated agricultural uses and water bodies to bare lands, rainfed agriculture, and man-made areas has decreased the vegetation cover and water areas, leading to an increase in soil salinity due to the erosion created by the 120- day wind of Sistan and sedimentation of salt particles in the whole region. Chah-nimehs have not been able to fully compensate for the adverse effects generated by the destruction of habitats and drying up of a part of Hamun Lake and Hirmand River, despite their slight success in reducing the environmental obstacles.

Today, the expansion of urbanism has led to many problems for various countries in the world, especially developing countries. Iran is one of the developing countries that in recent years has faced numerous damages due to population increase, especially in urban areas. In recent years, countries in the world have tried to overcome the problems deriving from unsustainable urbanism via using sustainable urban development. Accordingly, the authors carried out this study to determine the similarities and differences among sustainability evaluation systems existing in developing and developed counties and explain the needs of developing countries, like Iran, to improve management of urban areas. Therefore, in the study at hand, the global urban sustainability indicators such as BREEAM Community، CASBEE-UD، GBI Township، LEED-ND، IGBC Green Townships، GRIHA-LD، Green Star, and IUSAF were examined and were compared with the intended system in Iran (IUSI). In this process, the similarities and differences of selected evaluation systems were compared with each other in terms of type and importance level of indicators. The obtained result showed that the urbanism challenges in various countries in the world are different based on the development level and environmental, social, economic, and geopolitical conditions. In addition, the most important indicators of urban development measurement in developed countries were identified as energy, resources and social welfare, smartening, and environment, while the prioritized indicators in the developing countries were determined to be planning and developing the society, managing infrastructure resources, transportation, local security and economy, employment, and – mostly importantly – access to healthy water. Moreover, the findings of this study indicate that via localization of the systems and indicators related to sustainability evaluation for every country, region, or province, a more precise evaluation can be attained. This can offer great assistance to future planning to advance the sustainable development goals.

Landslides are classified as natural disasters that pose financial losses and deaths in the country annually. Besides, identification of high risk areas can be effective in reducing the damage and improving decisions on land-development policies. Preparation of landslide zoning map makes it possible to identify the vulnerable areas and use them in various environmental programs. In this study, the multi-criteria methods were presented to create the landslide capability map using geographical information system and decision rules. The aim of producing landslide capability map is to reduce the risks of landslides and support land development policies in the watershed scale. In this regards, different factors such as geology, slope, aspect, landuse, distance to road, rivers and fault maps were employed. Additionally, slope and river maps were expressed as restrictions. After weighing the factors and sub-factors, the landslide sensitivity maps were converted to the values ranged as 0-1. Afterward, in terms of sensitivity the final map was classified to three classes of low risk, moderate risk and high risk. The results showed that some factors such as precipitation, geology and slope have the highest impact on landslide occurrence and should be considered with more emphasis in order to be used for planning and policy making in the study area. According to the results, the first group factors including geology, landuse, slope and aspect and the second group factors including land distance from fault, river, road and rainfall are weighed as 0.6 and 0.4, respectively.

Shirkouh mountain is located in Yazd province and is surrounded by arid and semi- arid regions. In fact, it means that this area is the coldest part of Yazd province. The geographic location of this mountain made it a very sensitive ecosystem. Due to these reasons, its vegetation cover plays a very important role in weather conditions and welfare of people living around.
In present study some elements such as satellite images, Remote Sensing technology and Geographic Information System (GIS) were used for surveying climate changes. In this regard, the relationship between climate and temperature changes (as an indicator of climate) and changes in the amount of vegetation in two hot and cold months were obtained using the sampling and satellite data.
The results showed that in April from low temperature to the high temperature NDVI index increased but in Jun, NDVI will increased before 11°and after that this amount will decreased.
The NDVI in same type of plant was different in various classes of temperature ranges. This NDVI difference in various temperature classes in April (Colder period) was more visible than Jun (Warmer period). So it can be inferred that NDVI changes in the same vegetation type in different periods of the year is not change regularly because of elevation and temperature changes. The difference between the hot and cold habitats in a mountainous area can be reduced by increasing the ambient temperature, which is an appropriate indicator to assess the effects of climate change.

Nowadays one of the most important global issues is environmental problems that can cause harm to human and other organisms. Because of these problems we need to find strategies for solving them. One of the most important problems in the world is the pollution produced by different industries like oil industry that has a significant role in the nations economic and progress. There are many solutions and methods for surveying and mitigating the industries effects.
Multiple Criteria Decision-Making (MCDM) is one of these methods that order alternatives based on their importance. Ranking problems consist in rank ordering of all alternatives from the worst to the best, looking at their evaluations on the considered criteria. In present study two more important outranking methods (PROMETHEE and ELECTRE) were assessed and their advantages and disadvantages were surveyed. Also a study was done in Arak petrochemical industry by PROMETHEE method as a case study and construction phase alternatives were ranked by mentioned method.
Case study investigation and review on other studies showed that the PROMEHTEE method because of some features like being easy to use, understandable, Ability to cope with uncertainty, importance the decision makers, ability of visual representation, validity and flexibility is more applicable than ELECTRE.
So the suggested method can be applied for making environmental decisions and also oil and petrochemical industries that simultaneously deal with qualitative and quantitative data and uncertainty. The researchers hope that it would have desirable results.

Nowadays one of the most important global issues is environmental problems that can cause harm to human and other organisms. This problem is caused due to various factors like pollutants and other environmental disturbances. Because of these factors we need to find strategies for solving such problems. One of the most important problems in the world is the pollution produced by different industries like oil industry that has a significant role in the nations economic and progress. There are many solutions and methods for surveying and mitigating the industries effects. Multiple Criteria Decision-Making (MCDM) is one of these methods that order alternatives based on their importance. Ranking problems consist in rank ordering of all alternatives from the worst to the best، looking at their evaluations on the considered criteria. In present study two more important outranking methods (PROMETHEE and ELECTRE) were assessed and their advantages and disadvantages were surveyed. Also a study was done in Arak petrochemical industry by PROMETHEE method as an case study and construction phase alternatives were ranked by mentioned method. Case study investigation and review on other studies showed that the PROMEHTEE method because of some features like being easy to use، understandable، Ability to cope with uncertainty، importance the decision makers، ability of visual representation، validity and flexibility is more applicable than ELECTRE. So the suggested method can be applied for making environmental decisions and also oil and petrochemical industries that simultaneously deal with qualitative and quantitative data and uncertainty. The researchers hope that it would have desirable results