摘要
本研究选择人类活动频繁、环境脆弱的静升盆地作为典型研究区,在了解区域地质背景环境的基础上,采用综合指数法、灰色关联度法与Gis技术相结合,评价了静升盆地地下水脆弱性,并对不同年份的地下水脆弱性进行了动态分析,探讨了人类活动对地下水脆弱性的影响。结果表明:从时间上看,静升盆地地下水脆弱性有增高的趋势,其中脆弱性升高一级的面积为8.1km2,占总面积的32%,升高二级的面积为2.22km2,占总面积的9%,升高三级的面积为0.18km2,占总面积的1%;从空间上看,地下水脆弱性从盆地西部到东部逐渐减弱,盆地西部地下水脆弱性等级的变幅大于盆地东部;从与地下水位关系看,在地下水水位逐年下降的情况下,地下水脆弱性与地下水水位埋深之间呈非线性负相关关系。研究结果可以为静升盆地国土整治,地下水的开发、利用、保护及区域经济社会发展提供科学依据,也可为其他地区水土资源的开发利用与保护提供有益参考。
Jingsheng Basin is a typical example where the human activities are active and its environment is vulnerable.Based on the characteristics of geological environment in Jingsheng Basin,integrated with Gis technique,this paper conducted the assessment and the dynamic analysis of groundwater vulnerability of Jingsheng Basin by Comprehensive Index Method and Grey Relational Analysis,and revealed the relationship between human activity and groundwater vulnerability.The results show that the groundwater vulnerability of Jingsheng Basin temporally tended to increase and spatially decrease from the west to the east.And the amplitude of variation of the groundwater vulnerability level in the west part of the basin is greater than the eastern part.With the groundwater level declining year by year,the groundwater vulnerability shows a non-linear negative correlation with buried depth of the groundwater level.The analysis can provide a scientific basis for the territorial control of Jingsheng Basin,the development,utilization and protection of the groundwater and the regional economic and social development.
出处
《中国农村水利水电》
北大核心
2014年第1期118-122,共5页
China Rural Water and Hydropower
关键词
地下水
脆弱性评价
综合指数法
灰色关联度法
静升盆地
groundwater
vulnerability assessment
comprehensive index method
grey relational analysis
Jingsheng Basin
