黑石河流域水生态健康状态分析

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中图分类号 X826；X52 文献标识码A 文章编号 1007-7731（2025）13-0035-05

DOI号 10.16377/j.cnki.issn1007-7731.2025.13.009

Analysisof thewaterecological healthstatusoftheHeishiRiverBasin

YANG Botian ZHANG Zhiyuan WANG Xiongyan CHEN Jiao （Sichuan Water Conservancy Innovation and Development Research Institute，Sichuan Water Conservancy Vocational College， Chengdu 61oooo， China）

AbstractTo understand the survival environment of aquatic organisms and the overall health status within the Heishui River Basin，6 sampling points （ C1 to C6 ）were set up.In October 2O23，indicators such as the physical and chemical propertiesof water，phytoplankton，macrozoobenthos，and fish conservationindex inthe basin were investigated，and a comprehensive evaluationof the water qualitystatus wasconducted.Theresults showed that，in accordance with the Surface Water Environmental Quality Standards，the water quality standard in the Heishi River Basin was set at class II，with a score of 9O.The total average density of phytoplankton was 34.11×104 ind./L，with sampling sites C6 having the lowest density at 4.08×104 ind./L and C4 the highest at 92.91×1 04 ind A ， averaging a score of87.The mean Biological Integrity（BIBI）Index for macroinvertebrates was1.21 resulting in an8O point score. Sampling sites C4 and had BIscores of 6.54 and 6.62 respectively，indicating light pollution and moderately polution， while the rest were classifiedasclean water sections.The conservation index for fish populations reached 80% ， reflecting a partlychange in fish resources population structure within the water body.Overall，the water ecological health status of the Heishi River Basin is good.

Keywordsriver health assessment; Heishi River Basin; aquatic organisms; water quality analysis

河流作为水生生态系统的核心构成要素，其健康状态对于维持整个生态系统的稳定至关重要[]开展科学、精准的河流生态环境评估，是衡量流域生态系统健康水平的基础[2-4]。（剩余5953字）