Comprehensive assessment on groundwater sustainability under the constraint of resources and environment in Houtao plain
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Abstract:
Distribution of groundwater resources in Houtao plain is uneven with concentrated population and economy in the city and soil salinization caused by surface water flooding, which affected the social and economic sustainable development significantly. Therefore, a comprehensive evaluation of groundwater sustainability has become the prior task for regional planning. Groundwater sustainability reflects the groundwater utilization status directly, and is important for groundwater management. In this paper, the evaluation indexes were selected based on the problems caused by groundwater exploitation in Houtao plain, and the sustainability level of groundwater was evaluated using the comprehensive evaluation method. The results showed that groundwater sustainability varies in different areas. The areas with the worst groundwater sustainability are located in the south bank of the Yellow River and the northeast of the study area, and the areas with relatively better groundwater sustainability are located in the north and middle of the study area. The areas with good groundwater exploration potential are located in the north of Hangjinhouqi and Wuyuan County, whereas groundwater sustainability in most areas of Dengkou and Wulataqianqi County is low with serious desertification; therefore, water consumption industry should not to be developed in that area.
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