Open AccessApplication of DRASTIC Entropy Weight Model Method in Groundwater Vulnerability Evaluation in Ordos Area
Author(s) -
Wei Wang,
Wang Wen-xu,
Lin Zhu,
Rui Cheng,
Meng Lishan,
Sheming Chen,
Futian Liu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/702/1/012058
Subject(s) - groundwater , groundwater recharge , environmental science , hydrology (agriculture) , water resource management , structural basin , groundwater resources , pollution , entropy (arrow of time) , aquifer , geology , geotechnical engineering , ecology , geomorphology , physics , quantum mechanics , biology
The northeastern part of the Ordos Basin is the main recharge area of regional groundwater, the groundwater resources are relatively scarce. The main water supply source in the area is shallow groundwater, and there are many industrial and mining enterprises in the district. The potential groundwater pollution risk is high, and the the shallow groundwater vulnerability evaluation in the region is of great significance for groundwater resources protection.The weight of each indicator of the traditional DRASTIC model is fixed and does not change with the regional conditions, which may cause deviations in the evaluation results. This time, based on the DRASTIC model, the entropy weight coefficient method is introduced to determine the index weight, and the DRASTIC entropy weight model is established to obtain a more scientific and close to the actual conditions of the study area, and provide an important reference and basis for the protection of regional groundwater resources.