| 摘要: |
| 本文介绍了圩的概念,太湖地区圩区的现状,以及修圩筑堤对太湖流域洪涝形势的影响.筑圩有效地抵御了洪涝,但对太湖流域的洪涝形势产生了影响:(1)洪涝调蓄水面积减少,流域调蓄能力下降;(2)河网的自然状况被破坏,引起洪涝泄流不畅;(3)人类活动影响了流域的交、汇流情况,排涝动力的增加使圩内汇流时间缩短.最后,在考虑流域整体防洪形势下,提出圩区的排涝对策. |
| 关键词: 太湖地区 圩 洪涝 |
| DOI：10.18307/1999.0203 |
| 分类号: |
| 基金项目:中国科学院重大项目A“长江中下游生态环境建设与可持续发展”之专题“长江中下游洪涝灾害及其对可持续发展影响”的阶段成果 |
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| Polders in Taihu Lake Region and Its Effects on Floods |
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GAO Jun-feng1, Han Chang-lai2
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1.Nanjing institute of Geography and Limnology, Chinese Academy of Science, Naming 210008;2.HAN ChanglaiWater Re.sources of Shanghai Bureau, Shanghai 200434
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| Abstract: |
| Concept and the present situations of polders in the Taihu lake region are introduced in this paper. Polders have been built to defense floods effectively, but it has made the drainage of basin not smooth. Built polders have effects on the flood regime of Taihu Lake region, i.e. (1) The areas of water surface and capacities of store water are reduced; (2) Natural water networks are changed; (3) Run-on and runoff are affected by human activities, the increasing of pump power made runoff time much shorter than before. Based on the analysis, some methods of flood control in polders are given. |
| Key words: Taihu Lake region polder flood |
