水利水电科技进展2018，Vol.38Issue(2)：44-48,5.DOI:10.3880/j.issn.1006-7647.2018.02.008
上游水库水温情势变化对中华鲟产卵江段水温的影响
Effects of temperature variation at upstream of the Three Gorges Reservoir on Chinese sturgeon spawning reach
摘要
Abstract
Focusing on the problem that the spawning time of the Chinese sturgeon has been delayed to November due to the impoundment of the Three Gorges Reservoir (TGR), this paper studied one of the key factors, water temperature, that influences the reproduction process. Based on the measured water temperature and meteorological data at typical cross-sections upstream and downstream of the Three Gorges Dam and the Gezhou Dam, water temperature variation during the first decade after the impoundment of TGR(2003-2012) and its effects on water temperature characteristics in the Chinese sturgeon spawning reach located in the downstream of Gezhou Dam were analyzed. The result shows that after the impoundment of TGR,water temperature in the reservoir is higher than before,having substantial effects on the downstream reaches. Local air temperature variation is closely related with the water temperature variation and it can be a fundamental reason for water temperature rise in the spawning reach,accounting for a contributing degree of about 61%.关键词
三峡水库/水温变化/滞温效应/局地气温/产卵江段/中华鲟Key words
Three Gorges Reservoir/water temperature variations/temperature stagnation effect/local air temperature/spawning reach/Chinese sturgeon分类
建筑与水利引用本文复制引用
惠二青,毛劲乔,戴会超..上游水库水温情势变化对中华鲟产卵江段水温的影响[J].水利水电科技进展,2018,38(2):44-48,5.基金项目
国家重点研发计划(2016YFC0401708) （2016YFC0401708）
国家自然科学基金(51379059) （51379059）
中央高校基本科研业务费专项(2015B15314) （2015B15314）
