摘要
为揭示桑干河流域的水环境承载力动态变化,从经济社会、水资源、水环境3方面选取指标建立桑干河流域水环境承载力评价指标体系,采用改进后的全排列多边形图示指标法进行承载力评价,该方法与模糊综合评价法得到的评价结果变化趋势基本一致;用障碍度模型对影响流域水环境承载力的障碍因子进行诊断。结果表明,在2011-2018年间,桑干河流域水环境承载力水平较低,各年承载力综合指数均不超过0.3,但整体呈上升趋势,由2011年的0.182提升至2018年的0.237;水资源子系统的承载状况波动较大。障碍度检测结果显示,影响该地区水环境承载力的障碍因子主要集中于水资源方面。
In order to reveal the dynamic changes of the water environment carrying capacity of the Sanggan River Basin,water environment carting capacity indicator system’s design consists of socioeconomic subsystem,water resource subsystem and water environment subsystem.The improved entire-array-polygon synthesis illustration method is used to evaluate the carrying capacity,the variation tendency of result is basically the same as that obtained by the fuzzy comprehensive evaluation method.Obstacle degree is used to analyze obstacle factors.The results indicate that the water environment carrying capacity of Sanggan River Basin is weak,comprehensive index is under 0.3 in 2011-2018,but present escalating trend,from 0.183 in 2011 advance to 0.237 in 2018.The carrying level of the water resources subsystem fluctuates greatly.According to the obstacle degree analysis,the obstacle factors affecting the water environment carrying capacity of this area are mainly concentrated on the water resource subsystem.
作者
李润卓
赵雪花
王畅
LI Run-zhuo;ZHAO Xue-hua;WANG Chang(College of Water Resources Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《中国农村水利水电》
北大核心
2021年第8期43-46,53,共5页
China Rural Water and Hydropower
基金
国家重点研发计划项目(2019YFC0408601)
山西省重点研发计划项目(201903D321052)。
关键词
水环境承载力
全排列多边形图示指标法
障碍度
water environment carrying capacity
entire-array-polygon synthesis illustration
obstacle degree
