Environmental Risk Assessment of Poldokhtar Wetlands Based on Model EFMEA

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.