摘要
根据北方地区岩溶含水层的特征,基于改进欧洲方法,利用ArcGIS构建了包括指标体系、权重、评分体系的北方地区岩溶含水层脆弱性评价模型。并运用该模型,对北京房山岩溶含水层脆弱性进行了评价。结果表明:岩溶水脆弱性较高的区域位于岩溶发育的地区尤其是溶洞周围,而在范围较小的研究区,降雨及植被覆盖因素的影响较小。模拟结果显示,北京房山岩溶区90%处于脆弱性较低的范围,只有研究区西北部岩溶发育强烈的小部分区域脆弱性较高,建议加强进一步调研或应加强保护。
An improved model was proposed based on the characteristics of karst aquifers in North China. This improved model, including index system, weight and scoring system, comes from the European Model and take advantage of ArcGIS as the effcient tool to simulate the vulnerability of Fangshan karst aquifers in Beijing. The result shows that the regions with high vulnerability to karst water are in the areas where karst landform is relative well-developed especially around the karst caves. Rainfall and vegetation factors are less affected in smaller study areas. The simulation result show that 90% of Fangshan karst area in Beijing is in a low vulnerability area, only a small part of the region with strong karst development in the northwest of the study area has higher vulnerability. It is suggested to strengthen further research or strengthen protection in high vulnerable areas.
作者
孙少游
马静晨
刘全国
李世君
杨楠
潘懋
SUN Shaoyou MA Jingchen LIU Quanguo LI Shijun YANG Nan PAN Mao(Beijing Institute of Geological ＆ Prospecting Engineering, Beijing100048 Peking University, Beijing 100871 University of British Columbia, Vancouver, Canada, V6P4Y7)
出处
《城市地质》
2017年第2期87-90,共4页
Urban Geology
基金
基金项目:北京岩溶水资源勘查评价工程(京发改[2011]1215号)
关键词
欧洲方法
ARCGIS
岩溶水
脆弱性
房山
European Model
ArcGIS
Karst water
Vulnerability
Fangshan District
