长江口保滩护岸工程与水土资源可持续发展

Beach & Bank Protection Works and Water & Soil Resources Sustainable Development in the Yangtze River Estuary

分析长江口河势和潮滩冲淤发展变化 ,针对不同潮滩的冲淤稳定性 ,提出在冲刷河段因不同破坏因素而采用不同的保滩护岸方案 ,防止水土流失 ,稳固河势发展。从长江口非工程措施和工程措施 (围垦、保滩 )对长江口资源、环境和生态的正面和负面影响分析 ,提出保滩护岸。

The paper analyses water & sand transportation and tidal flat scour and fill development tendency. According to scour and fill stability, the paper presents several protection methods for different failure factor at different eroding shore to prevent water and soil loss and control the estuary development trend; and accretion promotion and reclamation at properly occasion to keep the water & soil resources sustainable development. At last, the paper suggests that accretion promotion and reclamation whether by non projection or projection must sufficiently consider water & soil resources and sustainable development at the Yangtze River estuary by analysis of its effect.