鲁中南山区径流小区不同坡度条件下4种植被的水土流失规律研究  

Study on Soil and Water Erosion by Different Slope Under Four Kinds of Vegetation in the Middle and South Shandong Province

作　　者：刘培娟[1,2] 马文贵 杨吉华[1] 孙友 李建伟 陈安强[1] 

机构地区：[1]山东农业大学林学院水土保持系,山东泰安271018 [2]山东省诸城市水利水产局,山东诸城262200 [3]临朐县水土保持办公室,山东临朐262600

出　　处：《水土保持研究》2007年第6期357-359,共3页Research of Soil and Water Conservation

基　　金：山东省水利厅资助项目“山东典型侵蚀区水土流失机理与综合治理效益研究”

摘　　要：对山东省临朐县辛庄水土保持试验站径流小区四种植物（花生、沙打旺、草木樨和自然草地）的3个坡度（5°、15°和25°）连续5年的汛期径流、侵蚀观测数据,分析不同坡度条件下径流小区汛期径流量和侵蚀量。试验结果表明：相同坡度径流小区四种植被的水土流失量随降雨量的增大而加剧;相同降雨条件和相同坡度径流小区四种植被的水土流失量从大到小顺序均为：花生〉自然草地〉沙打旺〉草木樨;四种植被的水土流失量随坡度的升高而增加,5°小区〈15°小区〈25°小区。This article studied the change of water and soil erosion with rising of the slope under the four kinds of vegetation of Arachis hypogaea L. ,Astragalus adsurgens Pall. ,Melilotus suaveolens and grassland in Linqu Xinzhuang valley of Shandong. At plot scale, an experiment investigated upon soil erosion of the four kinds of vegetation on gentle-hill slope （5°. 15°. 25°） was performed over a period of 1986～1990. The results showed that the magnitude of soil erosion of the four kinds of vegetation increases with rising of the precipitation amount in the same slope, the sequences of the magnitude of soil erosion of the four kinds of vegetation were： Arachis hypogaea L. 〉grassland〉Astragalus adsurgens Pall. 〉 Melilotus suaveolens in the same slope and precipitation amount. The magnitude of soil erosion of the four kinds of vegetation increases with rising of the slope （5°〈15°〈25°）.

关 键 词：坡度 地表径流量 土壤侵蚀量 降水量 植被类型 

分 类 号：S157.1[农业科学—土壤学]