2024年宜宾江段生态调度效应评估  

Assessment of the 2024 Ecological Dispatch Effectiveness of the Yibin Section of the Yangtze River

作　　者：梁志明 韩琎 白凤朋 任玉峰[1] 陈胥良 LIANG Zhiming;HAN Jin;BAI Fengpeng;REN Yufeng;CHEN Xuliang(China Yangtze Power Co.,Ltd.,Yichang 443000,Hubei,China;Changjiang Water Resources Commission of MWR,Wuhan 430010,China;Changjiang Water Resources Protection Institute,Wuhan 430051,China)

机构地区：[1]中国长江电力股份有限公司,湖北宜昌443000 [2]水利部长江水利委员会,武汉430010 [3]长江水资源保护科学研究所,武汉430051

出　　处：《三峡生态环境监测》2025年第1期90-97,共8页Ecology and Environmental Monitoring of Three Gorges

基　　金：中国长江电力股份有限公司员工自主研究项目(1522020011-2.7)。

摘　　要：为评估宜宾江段生态调度试验开展成效,本文以水库A坝址至李庄长约52 km江段为研究区域,构建研究区域的二维水动力-水温模型,并耦合鱼类产卵适宜度曲线,以评估研究区域内的鱼类产卵生境状况。结果显示,生态调度期间,评估范围内产卵综合适宜度指数平均值由0.5增至0.7,适宜产卵生境的区域占评估范围总面积比例增至37.69%;针对生态调度中期岷江流域汇入流量减少对生态调度的不利影响,提出了岷江流域水库群配合开展生态调度优化方案,可将生态调度中期适宜产卵生境的区域占评估范围总面积比例由15.48%增至43.16%,优化效果显著。To evaluate the effectiveness of the ecological dispatch trial in the Yibin section of the Yangtze River,a two-dimensional hydrodynamic-water temperature model was constructed for the study area,covering a 52 km riversegment from Reservoir A dam site to Lizhuang.The model was coupled with the fish spawning suitability curve to assess the fich spawning habitat conditions with⁃in the study area.The results indicate that during the ecological dispatch period,the average comprehensive spawning suitability in⁃dex within the evaluation range increases from 0.5 to 0.7.Additionally,the proportion of suitable spawning habitat within the total evaluation area increasing to 37.69%.To address the adverse effects of reduced inflow from the Min River basin on the ecological dispatch during the mid-term period,this paper proposed an optimized ecological dispatch plan involving the coordination of the reservoir group in the Min River basin.This optimization can increase the proportion of suitable spawning habitat within the total evaluation area from 15.48%to 43.16%,demonstrating significant optimization effects.

关 键 词：生态调度 宜宾江段 四大家鱼 适宜度指数 生境面积 

分 类 号：X171.1[环境科学与工程—环境科学]