基于DRASTIC的沈北新区浅层地下水脆弱性评价

Vulnerability Assessment of Shallow Groundwater in Shenbei New District Based on DRASTIC

摘要: 本文以沈北新区为研究区，通过选取具有代表性并易于查找的七个相关参数，建立DRASTICA模型，以该模型为基础构建指标评价体系，对该区域浅层地下水固有脆弱性进行评价，并借助GS+、ArcGIS、Spss等软件的空间统计数据分析以及制图功能，对该区域固有脆弱性的空间分布特征和变异规律进行研究分析，得出该区域地下水固有脆弱性从西北到东南依次递减的空间分布梯度图和整体分布特征，并对各个地区的地下水管理提出合理建议，希望各区域能密切关注地下水质量变化情况。本研究成果能够为城市扩张区和农业集约发展区土地利用规划及地下水资源管理提供科学依据。

Abstract: This paper takes Shenbei New Area as the research area, establishes the DRASTICA model by se-lecting seven relevant parameters that are representative and easy to find, and builds an index evaluation system based on the model to evaluate the inherent vulnerability of shallow ground-water in the area. With the help of spatial statistical data analysis and mapping functions of soft-ware such as GS+, ArcGIS, Spss, etc., the spatial distribution characteristics and variation rules of the inherent vulnerability of the region are studied and analyzed, and the space in which the inherent vulnerability of groundwater in the region decreases from northwest to southeast is obtained. Distribution gradient map and overall distribution characteristics, and put forward reasonable suggestions for groundwater management in various regions, and hope that each region can pay close attention to changes in groundwater quality. The results of this research can provide a scientific basis for land use planning and groundwater resources management in urban expansion areas and agricultural intensive development areas.