石质丘陵山地水土流失时空变化初步研究  

Study on Spatial and Temporal Variation of Soil and Water Loss in Rock Hilly Area

作　　者：方天纵[1] 张贤瑞 刘秀芹[1] 

机构地区：[1]天津市水利局农水处,天津300074

出　　处：《水土保持研究》2004年第2期24-26,共3页Research of Soil and Water Conservation

摘　　要：根据蓟县白马泉小流域资料,对水土流失规律进行初步研究。降雨是该地区水土流失产生的主要动力成因之一,在同一降雨条件下,试验小区产流量的顺序为,荒坡>松树>梯田>紫穗槐;年降雨量与径流量呈线性相关关系;有效降雨量与径流量呈幂指数关系;年降雨量与输沙量亦呈幂指数关系。Based on experimental data from Baimaquan Monitoring Station,it showed that the rainfall is one of the factors to cause the loss of soil and water.Under the same rainfall conditions,the runoff amount in sequence as follow:barren slope,slope with pine,terrace,slope with amorpha;annual rainfall change is linear with runoff change;the effective rainfall is power exponent with runoff and annual rainfall is also power exponent with sediment.

关 键 词：小流域 降雨 径流 模拟方程 

分 类 号：S157[农业科学—土壤学]