晋西黄土区水土保持林地抗冲性研究  

Soil Anti scouribility of Soil and Water Conservation Forest in the Loess Plateau of Western Shanxi Province

作　　者：张建军[1] 朱金兆[1] 查同刚[1] 杨雨行[1] 

机构地区：[1]北京林业大学水土保持学院

出　　处：《北京林业大学学报》1998年第6期20-24,共5页Journal of Beijing Forestry University

基　　金："八五"国家科技攻关项目

摘　　要：该文采用野外试验方法，以单位水量在单位面积上冲刷的土壤量为指标，对晋西黄土区水土保持林地抗冲性进行了研究，得出不同地类土壤抗冲性差异显著．研究结果表明：油松×刺槐混交林的抗冲性最好，其次是油松林地＞刺槐林地＞虎榛子林地＞沙棘林地＞荒草地＞玉米茬地＞土质马路＞新开垦地；坡度对土壤冲刷量的影响十分明显；随冲刷过程的进行，土壤冲刷量不断减少，减少至一定值则不再减少，此时的值称为基值．同时对糙率、冲刷过程进行了分析．Based on field experiment and studies on the soil and water conservation forest in the Loess Plateau of Western Shanxi Province, take soil loss quantity of the unit water quantity in unit area as an indicator, the result shows that soil anti scouribility in different types of land uses is significantly different, the best one is Pinus tabulaeformis and  Robinia pseudoacacia mixed forest, and the rest list as follows:Pinus tabulaeformis forest, Robinia pseudoacacia forest,Ostryopsis davidiana forest, Hipphophae rhamnoides forest, wasteland, corn residues farmland, dirt road, new cultivated farm land. Slope is also one of the factors for soil loss.The loss quantity is reducing as the soil erosion process on,and the lowest point is called the base index of soil erosion. The roughness and erosion process were also studied.

关 键 词：土壤抗冲性 水土保持林地 黄土区 

分 类 号：S714.7[农业科学—林学]