摘要
研究了1994～1998年遂宁组母质侵蚀试验场资料,用SPSS统计分析,结果表明：母质侵蚀区降雨-侵蚀模数的年际变化和径流深-侵蚀模数的年际变化规律大致一样。自然降雨条件下研究发现,降雨径流是紫色土母质侵蚀区的主要动力因子,产生径流的临界降雨量指标是13.908 mm。径流量与输沙模数成直线正相关关系。
The authors study on the data of Ja s parent material erosion from to 1994 to 1998, made use of the SPSS software, the result expressed： at parent erosion area the rule of rainfall-soil erosion modulus and runoff-soil erosion modulus per annum has the same rule. Under the nature rain found out , the rainfall factor and the runoff factor is the main factor that influenced the soil loss amount in purple parent erosion area , the critical rainfall index sign that lead to runoff is 13. 908mm. It has line correlation between the amount of runoff and sediment delivery modulus.
出处
《水土保持研究》
CSCD
北大核心
2007年第4期457-459,共3页
Research of Soil and Water Conservation
基金
国家自然科学基金资助项目（40671115）
重庆市自然科学基金项目资助（编号9219）.
关键词
遂宁组母质侵蚀
降雨量
径流量
输沙模数
Ja s parent material erosion
the amount of rainfall
the amount of runoff
sediment delivery modulus
