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太湖流域1999年特大洪水和对防洪规划的思考
引用本文:吴泰来.太湖流域1999年特大洪水和对防洪规划的思考[J].湖泊科学,2000,12(1):6-11.
作者姓名:吴泰来
作者单位:水利部太湖流域管理局,上海,200434
摘    要:1999年太湖流域梅雨期自6月7日入梅,历时43d,流域面平均梅雨总量670mm,是常年的3倍,致使流域发生了本世纪以来的特大洪水。项平均连续最大7d,15d,30d,45d、60d,90d雨量均超过历史暴雨实测最大值,接近或超过了百年一遇。流域降雨空间分布南部大于北部,浙西区、湖区、杭嘉湖区和浦东、浦西区明显大于湖西区和武澄锡区。太湖最高水位达到5.08m,超达1991年最高历史水位0.29m。

关 键 词:太湖流域  洪水  水利工程  防洪规划
收稿时间:1999/12/20 0:00:00

1999 Catastrophic Flood in Taihu Basin and the Consideration for Taihu Flood Control Planning
WU Tailai.1999 Catastrophic Flood in Taihu Basin and the Consideration for Taihu Flood Control Planning[J].Journal of Lake Science,2000,12(1):6-11.
Authors:WU Tailai
Institution:WU Tailai (Taihu Basin Authority, Ministry of Waser Resources,Shanghai 200434,P.R.China)
Abstract:The monsoon-raining season in the Taihu Basin, started on June 7, 1999, lasted for 43 days. Estimates revealed that the total average rainfall reached 670mm, which was 3 times higher as compared with normal years and closely and/or more rated at a return period of 1 in 100 years. Comparing with the flooding in 1954 and 1991, the rainfalls of 7-day, 15-day, 30-day, 45-day, 60-day and 90-day in 1999 exceeded the historical values ever recorded. The rainfall was unevenly distributed, being heavier in south than in north of the Basin, i. e. the precipitations in districts of West Zhejiang Province, Taihu Lake, Hangjiahu Lake, Pudong and Puxi(Shanghai) were obviously larger than of that of other districts. The highest water level in Taihu Lake reached 5. 08m a. s. l, 0. 29m up to the historic 4. 79m ever recorded during the 1991 flood. The 1999 catastrophic flood had brought a loss of 131 X 108 RMB to the basin economy. It impels us to reexamine the regulation of the water conservancy project, as well as the relation between flood storage and discharge, flood control in overall basin and flood discharge in each district. Moreover, some suggestions on the reasonable management of key projects in the basin, and the amendments of flood control planning in the 21 century are put forward.
Keywords:Taihu Basin  flood control  water conservancy projects  planning  
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