摘要
试验结果表明,在降雨量及前期降雨情况相同的前提下,乔木纯林(无枯落层和草灌等覆被物)比裸露地的面蚀还强烈。纯刺槐乔木林的径流量、土壤流失量分别比裸露地大8％和1.5％;纯侧柏林的径流量、土壤流失量分别比裸露地大41％和2.9％倍。乔灌草结合且的枯枝落叶的完整林地体系水土保持作用显著。作者据此提出了应该科学地发挥林地保持水土作用的建议。
Experimental results show that sheet erosion in pure arbor forest land without other ve-getative cover such as layer of withered leaves and grass of shrub etc is more stronger than that in bare land under same condition of precipitation and antecedent precipitation Runoff and soil loss in pure locust forest land is 8% and 15% more than that in bare land respectively and in pure oriental arborvitae forest land the figure is 41% more and 2.9 times than that in bare land respectively Integrated forest land with arbor-shrubgrass and layer of withered leaves has obvious effect on soil and water conservation According to this the author suggests that effect of forest on soil and water conservation should be brought in to play scientifically.
出处
《中国水土保持》
北大核心
1990年第8期41-43,共3页
Soil and Water Conservation in China
