摘要
本文结合坡面土壤侵蚀的研究,在罗玉沟流域的上、中、下游选择二个断面,共设立16个定点。在观测面蚀的同时,对该流域的两个土类6个土属的9个土种,分别测定和分析了影响坡面侵蚀的抗蚀性、抗冲性、透水性、有机质和养分含量等有关的土壤主要理化性质。初步阐述了坡面土壤侵蚀与土壤理化性质的关系和相互影响;耕种侵蚀土壤性质的恶化成为该流域坡面泥沙流失的主要源地,从而使其土壤肥力和生产力下降,进一步又加速了土壤侵蚀的发展。研究结果启示人们,必须重视对土壤侵蚀的综合防治。
Based on the study of slope erosion, 16 fixed points are arranged at three sections on the upper,middle and lower reaches of Luoyugou watershed.While the surface erosion is observed,nine kind soils of six genuses of two categories are measured and analysed with the concerned physical and chemical properties of the soil, which influence surface erosion, including antierodibility, antiflushability, water infiltration, content of organic matter and nutrients,etc. Interrelationship between erosion and properties of soil is expounded initially; the tilled soil having erosion with worsening properties becomes the principle resources for sediment production of slope, lowering the soil fertility and productivity, and promoting the development of soil erosion further.
出处
《水土保持学报》
CSCD
北大核心
1989年第1期43-50,共8页
Journal of Soil and Water Conservation
