List of Articles hazard class

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  1 - Degradation severity assessment of groundwater resourses using the modified version of IMDPA and GIS in Shiraz plain, Fars province
  Saeedeh Barzegar Masoud Masoudi
  10.22034/jest.2019.14542
    Background and Objective: Many agriculture and natural resources have turned into desert due to overuse and mismanagement of groundwater. The main cause of desertification and land degradation, in addition to natural factors, is improper human activities tha More

    Background and Objective: Many agriculture and natural resources have turned into desert due to overuse and mismanagement of groundwater. The main cause of desertification and land degradation, in addition to natural factors, is improper human activities that lead to some consequences such as salinity and lowering the groundwater level. In this regard, the degradation severity assessment of groundwater resources was done in Shiraz plain to plan for encountering the degradation of groundwater resources. Method: In this study, the modified IMDPA model was used to determine the severity of groundwater resources degradation. The final map of groundwater resources degradation was created by integrating the information layers of indices of water criterion. Findings: The results of this study indicated that about 55% of the main part of the plain is under moderate hazard class of water degradation and about 30% of it is under severe and very severe hazard classes of water degradation. Discussion and Conclusion: The results of this study showed that the electrical conductivity index had the greatest impact on the degradation of groundwater resources in Shiraz plain. Moreover, it was found that the proposed model has a good performance in estimating the severity of groundwater resources degradation. Therefore, the model is recommended to be applied in similar areas to determine the severity of groundwater resources degradation. Manuscript profile
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  2 - Hazard Assessment Of Groundwater Resourses Degradation Using a Proposed Model And Geographical Information System (GIS) In Jahrom Township
  Parviz Jokar Masoud Masoudi
  Groundwater is an important source of water supply in arid and semi-arid areas. In order to optimal management of water resources, maintain and improve the quality and quantity of the location, amount and distribution of water data in a defined geographical area is requ More

  Groundwater is an important source of water supply in arid and semi-arid areas. In order to optimal management of water resources, maintain and improve the quality and quantity of the location, amount and distribution of water data in a defined geographical area is required and necessary. The subject of this paper is assessing both qualitative and quantitative risk using the modified IMDPA model and geographical information system (GIS) in Jahrom Township. The purpose of this study is prepared a suitable zonation and vulnerability map of qualitative and quantitative status of groundwater in order to determine the areas with higher risk. The used parameters for qualitative and quantitative risk are included EC, CL, SAR and water table decline, respectively. The results of this study indicate that the Lowering of Water Table (quantitative status) in 40% of the plains is at severe and very severe hazard classes. The quality status of about 56% of the plains is at severe and very severe hazard classes. Overall, about 31% of the plains are in a state of severe and very severe hazard classes of ground water resources degradation. Manuscript profile