三峡水库春季水华期生态调度空间分析  

Fluctuation range analysis of ecological operation during spring algal bloom period in Three Gorges Reservoir

作　　者：马骏[1,2] 余伟 纪道斌[4,5] 杨正健[6] 刘德富[5,6] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [3]湖北省水利水电规划勘测设计院,湖北武汉430064 [4]三峡大学水利与环境学院,湖北宜昌443002 [5]三峡库区生态环境教育部工程研究中心,湖北宜昌443002 [6]湖北工业大学资源与环境工程学院,湖北武汉430068

出　　处：《武汉大学学报（工学版）》2015年第2期160-165,共6页Engineering Journal of Wuhan University

基　　金：国家自然科学基金面上项目(编号:51179095;51179205);国家自然科学基金青年基金(编号:51209123);江苏省普通高校研究生科研创新计划项目(编号:CXZZ12_0245)

摘　　要：三峡水库蓄水后,支流库湾水华频繁暴发.通过水库调度,改变支流库湾水动力条件,防控水华被认为是一种近期行之有效的方法.基于长江宜昌站长时间序列径流数据,考虑三峡水库运行要求,兼顾防洪、发电及航运等效益,根据水量平衡原理,利用三峡水库的水位库容曲线,计算了春季水华高发期3-5月份三峡水库的调度空间.结果表明,3月份理论上最大日降幅可达2.87m,最大日升幅仅有0.14m;4月份最大日降幅为3.17m,最大日升幅为0.47m;5月份最大日降幅为3.76m,最大日升幅为1.3m.5月份调度空间最大,3月份最小,4月份次之,此结果可为进一步探索实施生态调度方案提供依据.Serious algal blooms have been reported in some tributary bays of the Three Gorges Reservoir （TGR） since the initial impoundment of the TGR. Reservoir operation is considered an effective way to prevent and control algal blooms by changing hydrodynamic conditions of tributary bays. In this study, based on time series runoff data of the Yangtze River at Yichang station, water balance principle, and vol- ume elevation curve of the TGR, water level fluctuation range from March to May was calculated condider- ing the TGR operation requirements and taking into account of flood control, power generation and naviga- tion. The results show that the theoretical maximum daily decline is up to 2.87 m in March, 3.17 m in A- pril, and 3.76 m in May, respectively. The maximum daily increase is 0.14 m in March, 0.47 m in April, and 1.3 m in May, respectively. The order of fluctuation range is as follows, May, April, March. The re-sults can provide a basis for further study of the implementation of ecological operaton.

关 键 词：三峡水库 春季水华期 生态调度 

分 类 号：TV213.9[水利工程—水文学及水资源]