长江上游洛碛河段航道整治工程对鱼类生境影响研究  

Influence of waterway regulation project on fish habitat in Luoqi Reach of upper reaches of the Yangtze River

作　　者：付旭辉[1] 龚慧玲 何京霖 唐荣岭 张波[1] FU Xuhui;GONG Huiling;HE Jinglin;TANG Rongling;ZHANG Bo(National Engineering Technology Research Center for Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学,国家内河航道整治工程技术研究中心,重庆400074

出　　处：《水运工程》2025年第2期110-118,共9页Port & Waterway Engineering

基　　金：重庆市技术创新与应用示范专项重点研发项目(cstc2018jszx-zdyfxmX0021-05);重庆市教育委员会“成渝地区双城经济圈建设”科技创新项目(KJCXZD2020030);贵州省交通运输厅科技项目(GZJT2021-221-012);长江航道局科研项目(CJHDJHT20211200041)。

摘　　要：近年来,随航运经济飞速发展,长江流域内航道整治工程频繁,虽然航道整治工程能改善水流条件,但也对鱼类栖息地有一定影响。为探究不同航道整治工程对鱼类生境影响,以长江上游洛碛河段为例,采用数值模拟方法,从生态与水力学角度对比分析洛碛段航道整治工程前后四大家鱼的鱼类生境适宜性变化情况。结果表明:航道整治工程后,鱼类栖息地非常适宜区间的面积占比最多增长了1.21%,不适宜区间的面积占比最多降低了1.85%,并且上洛碛副槽随水位和流量增加,会产生适宜生存的栖息地环境。In recent years,with the rapid development of shipping economy,waterway regulation projects are frequent in the Yangtze River basin.Although waterway regulation projects can improve flow conditions,they also have a certain impact on fish habitat.To explore the impact of different waterway regulation projects on fish habitat,we take Luoqi Reach of the upper reaches of the Yangtze River as an example,and use numerical simulation method to compare and analyze the changes of habitat suitability of Four Major Chinese Carps before and after the waterway regulation project from the perspective of ecology and hydraulics.The results show that after the waterway regulation project,the very suitable area ratio of fish habitat increases by 1.21% at most,and the unsuitable area ratio decreases by 1.85% at most.Moreover,with the increase of water level and flow,the sub channel upstream of Luoqi will produce a suitable habitat environment for survival.

关 键 词：航道整治 四大家鱼 生境适宜性 

分 类 号：U617[交通运输工程—船舶及航道工程] S931.1[交通运输工程—船舶与海洋工程]