基于GIS应用DATUW模型评价地下水环境脆弱性

Assessing the Vulnerability of Groundwater Environments Using the DATUW Model and GIS

地下水环境脆弱性是当前地下水研究领域中的一个热点,其评价结果对于城市规划、垃圾堆放场址建设、地下水源选取与保护等具有非常重要的作用。本文是在MapGIS平台上,基于DRASTIC评价技术,选取地下水位埋深、含水层介质、地形坡度、含水层上覆地层、单井涌水量五个因子,利用DATUW模型,评价哈尔滨市区的地下水环境脆弱性。根据评价结果,将研究区的地下水环境划分为高、中、低三个脆弱性区,并就分区结果,提出了防护建议。

The vulnerability of groundwater environments is a major agenda in groundwater research,and the evaluation of result plays an important role in urban planning,waste yard construction,the selection and protection of groundwater resources,and several other planning considerations.According to geographic information system（GIS） resources and the DRASTIC evaluation method,and using the DATUW model,this paper selected five factors（depth of groundwater level,lithology of the aquifer,topography,lithology of the overlying layer,and water discharge from a single pump well） to evaluate the vulnerability of the groundwater environment in the Harbin urban area.Based on the results,the study area was divided into three zones depending on the vulnerability of underlying groundwater;high,middle and low.Using these classifications,we propose a set of management recommendations for the area.