瓯江流域低丘缓坡地不同水土保持措施的水沙关系对比分析

Comparative Analysis on Water and Sediment Relationship under Different Soil and Water Conservation Measures at Low Hills and Gentle Slopes in Oujiang Watershed

通过针对瓯江流域为代表的南方红壤丘陵区低丘缓坡地建设模拟实施多类型水土保持措施(包括工程措施、植物措施、临时措施、综合措施等),采用径流小区法进行观测、实验以及对比分析实验结果,得出各项措施条件下的水土流失情况、水土保持效果及措施优缺点,对瓯江流域开发建设项目水土保持措施的防治效果进行较为科学、严谨的实验论证,从而为当地开发建设项目水土流失预测及措施设计提供有力支持。

Various soil and water conservation measures such as engineering measures, plant measures, temporary measures and comprehensive measures were simulated in Oujiang Watershed, a typical red soil region with low hills and gentle slopes. Runoff plot method was adopted to observe, test and comparatively analyze the experimental results. Soil and water loss situation, conservation effects, strengths and drawbacks of respective measures were concluded to conduct a scientific and rigorous argument on the prevention and control effects of soil and water conservation measures taken for development projects in Oujiang Watershed. This study can greatly help the soil and water loss prediction and measure design for local development and construction projects.