基于GIS的鄂尔多斯白垩系盆地地下水水质的模糊综合评价

开展科学合理的地下水水质评价工作，可以为地下水资源的可持续开发利用和水污染防治提供科学依据，具有重要的理论意义和实际价值。以地下水水质量标准为基础，通过构建科学合理的地下水水质评价指标体系，以GIS为平台，运用模糊综合评价方法对鄂尔多斯白垩系盆地地下水水质进行了综合评价。评价结果表明，盆地北区地下水水质总体上相对较好，不同埋藏深度的地下水水质差异并不很大；盆地南区地下水水质总体上相对北区较差，中、深层地下水水质普遍较差，地下水水质类别主要为IV、V类。

Fuzzy integrated evaluation of groundwater quality in the Cretaceous Ordos artisan basin based on GIS

Scientific and rational groundwater quality evaluation has great theoretical significance and social values because it can provide scientific guidance on the sustainable exploitation and utilization of groundwater resources and protection of groundwater pollution. With the groundwater quality standard as the basis, an scientific and rational evaluation index system of groundwater quality has been built and with the platform of GIS, the fuzzy integrated evaluation method has been used to evaluate the groundwater quality in the study area. The results of evaluation indicate that the groundwater quality is generally good in the northern part of the basin and that the groundwater quality does not vary much at different depths. However, the groundwater quality in the southern part of the basin is generally poor as compared with the northern part and the quality is mainly of grades IV and V.