中文摘要：

介绍了DRASTIC模型的七个评价因子：地下水埋深、含水层净补给量、含水层介质类型、土壤类型、地形坡度、包气带介质I的影响和含水层的导水系数。以地理信息系统（MAPGIS软件）为基础平台，结合地下水污染风险评价专业模型（DRASTIC模型），评价了贵阳市地下水污染风险，并进行了模型验证。通过MAPGIS软件做出了贵阳市地下水污染风险预测图，并对贵阳市地下水污染风险提出了防治对策，最后对地下水污染风险评价进行了总结与展望。

英文摘要：

The paper introduces seven factor of DRASTIC model： Depth of water table, Net recharge, Aquifer media, Soil media, Topography. Impact of Vadose Zone and Hydraulic Conductivity. It sets the geographic information system （Software MAPGIS ） as the basic platform, combining with the professional model （DRASTIC model） for evaluating groundwater contamination risk, evaluates the risk this area and tests the model. By software MAPGIS, it draw up a forecast map of groundwater contamination risk in Guiyang city, puts forward some countermeasures, concludes and prospects the evaluation at last.