甘肃省黑河中游段河流生态系统健康评价  

Health Evaluation of River Ecosystem in the Middle Reaches of Heihe River in Gansu Province

作　　者：王娟 牛晓宇 孙亚玲 Wang Juan;Niu Xiaoyu;Sun Yaling(Gansu Province Water Environmental Monitoring Center,Lanzhou 730000,Gansu)

机构地区：[1]甘肃省水环境监测中心,甘肃兰州730000

出　　处：《陕西水利》2023年第9期80-83,共4页Shaanxi Water Resources

基　　金：甘肃省水利科学试验研究及技术推广项目(甘水建管发[2021]71号第55);甘肃省科技计划项目(21ZD4FA008)。

摘　　要：以黑河中游段生态系统为评估对象,利用熵权法和层次分析法相结合的方法 ,通过水文水资源、物理形态、水质状况、水生生物和社会服务功能等5个方面进行生态系统健康综合评价。结果表明:2020年黑河中游段河流健康状况已处于理想状态,综合赋分83.42;且所有具体指标均为理想状态,除了物理形态和水生生物表现为健康以外,同时应更加关注黑河中游段河流的连通性和水生生物的群落结构和数量,以提高相应河流健康评价。该结果为黑河中游段河流生态系统保护提供了重要依据,同时也对黑河河流生态系统的进一步改善提供了参考。Heihe river in Gansu province is the largest river in the Hexi region,and its ecological environment is relatively fragile.Therefore,it is very important to study the health of the Heihe ecosystem to protect the aquatic ecosystem in the Hexi region.Herein,we chose the middle reaches of the Heihe River as the ecosystem evaluation object,using the entropy weight method and analytic hierarchy process,the ecological system health was evaluated in five aspects including hydrology and water resources,physical form,water quality,aquatic organisms and social service functions.The results show that the health status of the river in the middle reaches of the Heihe river in 2020 is already in an ideal state,with a comprehensive score of 83.42.All specific indicators are in an ideal state,except for the physical form and aquatic organisms that are at health state.Meanwhile,we should pay more attention to the connectivity of the river in the middle reaches of the Heihe river and the community structure and quantity of aquatic organisms to improve the health evaluation of the corresponding river.Our results not only provide an important basis for the protection of the river ecosystem in the middle reaches of the Heihe river but also provide a reference for the further improvement of the river ecosystem in the Heihe river.

关 键 词：黑河中段 生态系统 健康 熵权法 层次分析法 

分 类 号：X703.5[环境科学与工程—环境工程]