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刺槐是黄土高原最主要的水土保持造林树种,山西、陕西、甘肃、辽宁、河南等省均有大面积分布,发挥着重要的水土保持作用。过去对刺槐林在提高土壤抗侵蚀能力方面的作用缺乏系统研究。为此,我们自1981年到1983年对陕西省渭北地区刺槐林地土壤抗侵蚀能力进行了初步研究。土壤抗侵蚀能力可分为抗蚀性和抗冲性两种,前者指土壤抵抗迳流对土壤分散和悬浮的能力;后者指土壤抵抗迳流的机械破坏和推移的能力。抗蚀和抗冲是土壤的两种不同特性,
Robinia pseudoacacia is the most important afforestation tree species for soil and water conservation in the Loess Plateau. Both Shanxi and Shaanxi, Gansu, Liaoning and Henan provinces have large area distribution and play an important role of soil and water conservation. In the past, there was a lack of systematic research on the role of acacia forests in improving soil erosion resistance. Therefore, from 1981 to 1983, we conducted a preliminary study on the soil erosion resistance of Robinia pseudoacacia forestlands in Weibei area of Shaanxi province. Soil erosion resistance can be divided into two kinds of corrosion resistance and impact resistance, the former refers to the ability of the soil to resist the flow of the dispersion and suspension of soil; the latter refers to the ability of the soil to resist the mechanical destruction and migration of the flow. Resist and impact are two different characteristics of the soil,