Thinking about Geomorphologic Evolution of Slopes in Hydrofluctuation Belt of Three Gorges Reservoir

ZHANG Xin-bao

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Thinking about Geomorphologic Evolution of Slopes in Hydrofluctuation Belt of Three Gorges Reservoir

- Thinking about Geomorphologic Evolution of Slopes in Hydrofluctuation Belt of Three Gorges Reservoir
- Bulletin of Soiland Water Conservation Vol. 28, Issue 3, Pages: 1-4(2009)
- 作者机构：
  
  中国科学院水利部成都山地灾害与环境研究所,四川,成都,610041
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- Published：2009
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ZHANG Xin-bao. Thinking about Geomorphologic Evolution of Slopes in Hydrofluctuation Belt of Three Gorges Reservoir[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 1-4.
DOI：

ZHANG Xin-bao. Thinking about Geomorphologic Evolution of Slopes in Hydrofluctuation Belt of Three Gorges Reservoir[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 1-4. DOI：

摘要

与国内外特大型水库相比，三峡水库消落带具有常年水位变幅大，干流航运繁忙，波浪大和良田沃土多的特点。三峡水库蓄水后，消落带坡地地貌变化的发生是必然的，形成的稳定坡地类型有淤积滩涂坡地、稳定石质坡地和稳定土质坡地3种，其地貌演化过程可分为强烈侵蚀期、基本稳定期和淤积填平期。水库蓄水后，消落带坡地土壤的流失势必影响消落带坡地的植被建设。鉴于目前我国三峡水库消落带坡地地貌演化的相关研究严重不足，已开展的生态环境修复重大科研项目，均没有重视水库蓄水后消落带坡地地貌的变化，也没有安排地貌演化的相关内容，作者从坡地地貌演化的角度，对三峡水库消落带生态环境的研究、治理工作和水库运行方案的调整提出了相关建议。

Abstract

Compared with other large reservoirs in China and abroad

the hydro-fluctuation belt of the Three Gorges Reservoir is characterized with high annual hydro-fluctuation

heavy waves caused by busy shipping in the main stream and a large area of fertilized cultivated land.After filling of a reservoir

great geo morp hologic changes should occur on the bank slope and final stable slopes has following three types:silting beach slopes

eroded bedrock slopes and eroded earth slopes.Geomorphologic evolution processes on bank slopes of the hydrofluctuation belt can be divided into three stages of severe erosion

general stable and gradual silting up.Vegetation mediation on the bank slopes should be seriously affected by soil losses during the geomorphologic evolution processes after reservoir filling.Little researches have been done on geomorphologic evolution of the bank slopes in the hydro-fluctuation belt of the Three orges Reservoir.Little attention has been paid to the geomorphologic evolution of the bank slopes in the existing key research projects on ecology and environment remediation in the hydro-fluctuation belt of the Three Gorges Reservoir.From the view of the geomorphologic evolution of the bank slopes

suggestions on research and remediation of the ecology and environment in the hydro-fluctuation belt andon adjustment of reservoir operation scheme are also proposed.

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