南方红壤坡地不同水土保持措施消流减蚀效果研究

Effects of Different Measures for Soil and WaterConservation in Slope Land of Red Soil in South China

目前,大部分水土保持措施效益研究仅仅停留在简单定性的比较分析上。本研究通过在南方红壤坡地建立标准径流小区进行试验,采用统计学方法对不同水土保持措施下径流量和泥沙量的变化情况进行了定量分析。研究结果表明:采取提高植被结构的层次、植被覆盖度和辅以必要的工程措施是南方红壤坡地水土保持的有效途径。

At present, the research on the effects of measures for water and soil conservation remains mainly at the level of simple comparative analysis. The district of standard runoff was build in the south slope land of red soil for the experiment. Quantitative analysis about the runoff capacity and the siltquantity under different masures for soil and water conservation was conducted by means of statistical method .The results indicated that it was an effective approach to raise the level of vegetation structure and vegetation coverage supplemented with necessary engineering measures for soil and water conservation in slope land of red soil in South China.