丽江城市地下水脆弱性评价  

Research on the Groundwater Vulnerability Assessment of Lijiang City

作　　者：范弢[1] 杨世瑜[2] 

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650092 [2]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《昆明理工大学学报（理工版）》2007年第1期91-96,共6页Journal of Kunming University of Science and Technology(Natural Science Edition)

基　　金：云南省自然科学基金项目(项目编号:2005D00202);中国地质调查局项目(项目编号:1212010540104)资助

摘　　要：运用美国环保署(EPA)的地下水脆弱性DRASTIC评价方法,考虑地下水位埋深、含水层净补给量、含水层介质、土壤包气带、地形地貌、包气带介质和水力传导系数等7个评价因子,按评价单元进行划分,并结合GIS技术,对云南丽江古城的地下水的脆弱性从自然和人类影响两方面进行评价.研究表明,丽江盆地地下水脆弱性高,水环境污染严重,已危及丽江世界遗产地水生态安全.加强对水资源环境的综合研究和保护,是进一步推动丽江社会、经济、环境协调发展的重要工作.Groundwater vulnerability assessment is the primarily basic task for aquifer protection, the research of which consists of water quantity and water quality. The influential factors of vulnerability include natural part and human part. EPA＇s DRASTIC groundwater vulnerability assessment takes into account the factors, such as depth to the water table net recharge, aquifer material, soil type, topography, impact of vadose zone and hydraulic conductivity of aquifer, and also combines with GIS technology to evaluate the groundwater vulnerability of Li- jiang Basin, which is Lijiang ancient town, from both natural and human effects. According to the research, groundwater vulnerability of Lijiang Basin is high and severely polluted, which threatens the groundwater ecology of Lijiang heritage site. Enforcing the comprehensive research and protection of water resources in Lijiang is the most significant work in advancing harmonious development of society, economy and environment in there.

关 键 词：地下水脆弱性 DRASTIC 地下水污染 丽江市 

分 类 号：X321[环境科学与工程—环境工程]