黄河干流生境质量评价研究
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摘要：
河流生境是河流生态系统中的重要组成部分,是维持河流健康的重要因素。为揭示黄河生境质量状况,于2021年和2022年5-7月对黄河源头至下游的26个干流河段开展河流生境现状调查与质量评价.选取河道和河岸10项生境指标开展综合评价.结果显示,黄河干流各河段生境质量综合得分H值介于79~153分,超过69%的河段生境质量介于90~120分,等级为中等.源区、上游、中游和下游生境未表现出显著的区域差异(p>0.05).10项生境指标中,大型木质残体分布在全河段得分最低,介于1~5分,水质状况、河道内人类活动强度、河岸带植被覆盖度和河岸土地利用类型等4项指标在不同区域表现出显著差异(p<0.05).主成分分析结果显示,影响黄河干流生境质量的主要因子有河岸土地利用类型、河道内人类活动强度、水质状况和河岸稳定性等.
River habitat is an important component of river ecosystems and plays an important role in maintaining river health.In order to clarify the habitat quality status of the Yellow River,the habitat status survey and habitat quality assessment of 26 sites from the source to the lower reaches of the Yellow River mainstream were carried out from May to July in 2021 and 2022.A total of 10 habitat indexes were selected from two aspects of river channels and riparian zones.The results showed that the comprehensive H scores of habitat quality of all sites of the Yellow River mainstream were between 79 and 153,and more than 69%of sites were in the medium grade.No significant differences were observed in the habitat scores among the source,upstream,middle and downstream(p>0.05).Among the 10 habitat indexes,the scores of large woody residues were the lowest in the whole reach,ranging from 1-5.The water quality,human activity intensity,riparian vegetation coverage and riparian land use types showed significant differences among different regions(p<0.05).The results of principal component analysis showed that the main factors affecting the habitat quality of the Yellow River mainstream included riparian land use type,human activity intensity,water quality and riverbank stability.
作者：
李学军 张洋 高云霓 李龙飞 张景晓 董静 张曼 高肖飞 秦祥朝
Li Xuejun;Zhang Yang;Gao Yunni;Li Longfei;Zhang Jingxiao;Dong Jing;Zhang Man;Gao Xiaofei;Qin Xiangchao(College of Fisheries,Henan Normal University,Xinxiang 453007,China;Observation and Research Station on Water Ecosystem in Danjiangkou Reservoir of Henan Province,Nanyang 474450,China;Ecological Environment Monitoring and Scientific Research Center,Yellow River Basin Ecology and Environment Administration,Ministry of Ecology and Environment,Zhengzhou 450000,China)
机构地区：
betway官方app 水产学院
引用本文：
《betway官方app 学报(自然科学版)》 CAS 2024年第1期8-15,I0002,I0003,共10页
Journal of Henan Normal University(Natural Science Edition)
基金：
农业农村部财政专项“黄河渔业资源与环境调查” 国家高端外国专家引进计划(G2021026024L) 河南省重大公益专项(201300311300) betway官方app 国家级科研项目培育基金(校2021PL05) 国家藻类产业技术体系(CARS-50) 国家自然科学基金(U1904124) 河南省科技攻关项目(232102320250)。
关键词：
黄河干流 生境质量 河道 河岸
Yellow River mainstream habitat quality river channels riparian zones
分类号：
X52 [环境科学与工程—环境工程]
