江汉-洞庭平原地下水功能评价与区划

Assessment and zoning of groundwater function in Jianghan-Dongting Plain

为了合理开发利用江汉-洞庭平原的地下水资源,通过资料收集、野外调研,构建了包括资源功能、生态功能与地质环境功能属性指标数据层的评价体系。将江汉-洞庭平原划分为4个地下水功能评价区与17个评价亚区,运用层次分析法与Map GIS软件空间分析功能,对江汉-洞庭平原地下水资源功能区、生态功能区与地质环境功能区进行了划分。最后,综合分区与主导功能性分析结果,将江汉-洞庭平原地下水功能划分为可持续性强、较强、一般、较弱与弱5个等级并确定了分布范围。研究成果可为江汉-洞庭平原地下水资源可持续利用、地质环境及生态环境保护规划提供科学依据。

To reasonably develop and utilize the underground water in Jianghan - Dongting Plaln, through data collection and field investigation, an assessment system including the indicator level of resources function, ecology function and geological envi- ronment function was established. The Plain was divided into four zones and 17 sub - zones for groundwater function assessment, and the function division for groundwater resources, ecology and geological environment was determined by using AHP and Map- GIS software spatial analysis. Finally, by considering the analysis results of function zoning and dominant functions analysis, the groundwater functions in Jianghan - Dongting Plain were classified into five＇levels, i.e. strong, relatively strong, ordinary, relatively weak and weak sustainability. The analysis results can offer scientific basis for sustainable utilization and protection planning of groundwater resources, geological environment and ecological environment in Jianghan - Dongting Plain.