Vulnerability evaluation of groundwater sources in Shunyi County
顺义区地下水水源地脆弱性评价

Based on the characters and the actual conditions of groundwater sources in Shunyi County, the index system of vulnerability assessment of groundwater sources in Shunyi was established. The vulnerability comprehensive analysis was executed by using DGR (degree of gray relationship) based on the index system. Comparing the comprehensive analysis result with the nature vulnerability result, the conclusion shows that it is more scientific and reasonable, so it turns out to be a better thought to make a combination of comprehensive assessment and nature vulnerability by assessing the vulnerability of groundwater sources in Shunyi County in Beijing.