红壤坡地果园水土保持效益的研究

Study on benefits of soil and water conservation on sloping land orchard of red soil

试验研究红壤坡地果园水平梯田梯壁植草等 8种处理水土保持效益结果表明 ,不同处理间有显著差异 ,与全园裸露 (对照 )相比水平梯田梯壁植草水土保持效果最佳 ,其径流系数平均比对照减少 89.7% ,土壤侵蚀量控制基本达 10 0 % ,其他各处理均有不同程度防治水土流失的效果。

This thesis has probed the benefits of soil and water conservation by eight different treatments on sloping land orchard of red soil. The results show that compared with bare soil (CK), planting Bahia grass on level bench terrace wa ll is the most effective method to conserve water and soil.It reduces the averag e runoff coefficient by 89.7% and the amount of soil erosion almost 100%.Other t reatments also result in some positive effects.Furthermore,the physical and chem ical properties of soil with sod culture are improved respectively.