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水土保持工作者早就认识到植物和下垫层能减少地表径流和土壤侵蚀。这项研究工作在温暖地带已进行了多年。但是在湿热带的数据还很少。 本文研究林冠郁闭度对地表径流和土壤侵蚀量的影响,其目的是:①确定能使水土流失减小到最小程度的林冠郁闭度。②能有效发挥流域保护效益的郁闭度的变化范围。
Soil and water conservation workers have long recognized that plants and subsoils reduce surface runoff and soil erosion. This research work has been in the warm zone for many years. However, there is still very little data in the humid tropics. The purpose of this paper is to study the effect of canopy canopy density on surface runoff and soil erosion. The purpose of this paper is to: 1) Determine the canopy closure that can minimize soil erosion. ② can effectively play a watershed protection benefits of the degree of change of canopy degrees.