长江干流大型水利工程对下游水温变化影响研究  

Water temperature change caused by large-scale water projects on the Yangtze River mainstream

作　　者：邹振华 陆国宾[2,3] 李琼芳[2,3] 夏自强[2,3] 邴建平 

机构地区：[1]长江委长江中游水文水资源勘测局,武汉430012 [2]河海大学水文水资源与水利工程科学国家重点实验室,南京210098 [3]河海大学水文水资源学院,南京210098 [4]长江委水文局,武汉430010

出　　处：《水力发电学报》2011年第5期139-144,共6页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金重点资助项目(30490235);高等学校学科创新引智计划项目(B08048);水利部公益性项目专项经费项目(200701031);教育部"长江学者和创新团队发展计划"资助项目(IRT0717)

摘　　要：为分析长江干流水库的修建对其下游河段水温的影响,以宜昌站为研究站,寸滩站为参证站,通过对比分析宜昌和寸滩两站同期旬水温变化过程、水温差值、水温相关性和温变率相关性,揭示葛洲坝和三峡水库关闸蓄水前后宜昌站旬水温特性的变化。研究表明,葛洲坝水库的修建对宜昌站降温段水温特性的影响有限,而三峡水库的修建对宜昌站水温特性的影响则较显著。To evaluate the dam-induced water temperature change in the lower Yangtze,a case study of the Gezhouba and Three Gorges reservoirs was conducted.Using the water temperature records at the Yichang and Cuntan hydrological stations,this analysis includes the variations of monthly water temperature at the two stations,their temperature differences and correlation,and the correlation of temperature changing rates in the periods of pre-and post-dam construction.The results reveal that the operation of Gezhouba reservoirs has little influence on water temperature downstream,while the impact of Three Gorges dam is much more significant.

关 键 词：环境水力学 长江 水温 葛洲坝水库 三峡水库 

分 类 号：X143[环境科学与工程—环境科学]