摘要
岩溶地区因其独特的地质构造,地下水缺乏应有保护带,污染物很容易穿过薄弱的覆盖层下渗到含水层中,对其造成污染。为了预防地下水被污染,及时保护地下水资源,有必要对岩溶地下水进行脆弱性评价。针对云南寻甸县金所盆地岩溶含水层的实际地质模型,在经典DRASTIC模型基础上进行改进,建立AHP-模糊综合评判法和FRALST模型法,对该区域进行地下水脆弱性评价,并进行对比分析。结果表明,AHP-模糊评判法的评价结果,能更客观反映该地区实际情况。
The article is aimed at presenting two improved assessment models of the groundwater vulnerability in the karst areas in Southwest China by using the comprehensive fuzzy assessment and the FRALST model in accordance with the actual karst aquifer geological situation of Jinsuo hasin in Xundian County, Yunnan. The two improved mod- els we have obtained for assessing the groundwater vulnerability in this area can be shown as follows： one is AHP-enmprehensive evaluation model while the other is the improved FRAIST one. And, finally, we have compared the two methods with each other and chosen the better one. In a word, the result of the application of the former model proves to be in consistency with the latter one, with the mere differ- ence being frnm each other on Lhe application scale. In comparison with each other, the FRALST model has certain limitations of its own, whereas the AHP-fuzzy comprehensive evaluation method, which can reflect the practical problem more objectively, is featured with its expertise system and more knowledge-based. Therefore, the result of AHP-fuzzy comprehensive evaluation method we have shown can serve as the evident powerful means for disclosing the groundwa- ter vulnerability in this area.
出处
《安全与环境学报》
CAS
CSCD
北大核心
2013年第1期118-123,共6页
Journal of Safety and Environment
基金
国家自然科学基金项目(40672175)
