摘要
小流域生态健康受多方面因素的影响,为了评价流域生态健康状况,以突变级数法为基础,建立了小流域河流生态健康评价指标体系,从自然和人为两方面,共选取了2个一级指标、5个二级指标、15个三级指标,对新密市8个小流域生态健康的影响因素进行了计算和分析,结果表明:2015—2017年研究流域生态健康受影响程度等级均为4级,但流域生态健康受影响程度逐年上升;自然因素的影响较为稳定,人为因素的影响明显增大,流域生态健康受影响程度与人为因素的变化趋势一致。
The ecological health of small watershed is affected by many aspects.In order to improve the ecological health of the watershed and provide theoretical support and work direction for the study of ecological governance of the watershed,based on the catastrophe progres sion method,an evaluation system for the factors affecting the ecological health of small watershed was established.Two first class indicators,five second class indicators and 15 third class indicators were selected from the natural and human aspects.The results show that from 2015 to 2017,the affected degree of ecological health in the study basin is grade 4 and the affected degree of ecological health in the basin is in creased year by year;the impact of natural factors is relatively stable,the impact of human factors is significantly increased and the affected degree of ecological health in the basin is consistent with the change trend of human factors.
作者
田林钢
胡起源
TIAN Lingang;HU Qiyuan(North China University of Water Resources and Electric Power,Zhengzhou 450003,China;Water Resources Efficient Utilization and Guarantee Project Henan Collaborative Innovation Center,Zhengzhou 450003,China;Henan Research Center of Hydraulic Structure Safety Engineering Technology,Zhengzhou 450003,China)
出处
《人民黄河》
CAS
北大核心
2020年第4期71-75,80,共6页
Yellow River
基金
河南省高校科技创新团队支持计划项目(19IRTSTHN030)。
关键词
生态健康
突变级数法
生态治理
小流域
eco health of watershed
catastrophe series method
ecological control
small watershed
