摘要
利用人工模拟降雨装置对坡耕地不同耕作管理措施强化降水入渗规律进行了研究。结果表明,不同耕作管理措施强化降水入渗速率效用不同,在相同入渗时间情况下,强化降水入渗速率等高耕作>人工掏挖>人工锄耕>直线坡,在中小雨强和较短降雨历时情况下,这种情况表现更为显著。在对黄土高原超渗产流理论和坡面水量平衡方程分析的基础上,得出了不同耕作管理措施强化降水入渗速率与入渗时间的函数关系式。
The paper studied rainfall infiltration laws of different tillage management measures by using artificial simulated rainfall method. The results showed that the different tillage management measures have different effects to soil intensified infiltration rates. Under the experimental situation with same infiltration time, soil intensified infiltration rate for contour tillage>artificial digging>artificial hoeing>linear slope. The effect of different tillage management measures on soil intensified infiltration rates is more efficient for the condition of the less rainfall time and rainfall intensity. The relationship of soil intensified infiltration rates between the different tillage management measures and infiltration time was obtained according to theory of runoff generation over infiltration in loess plateau and balance equation of water in slope.
出处
《水土保持学报》
CSCD
北大核心
2003年第3期115-117,共3页
Journal of Soil and Water Conservation
基金
黄河基金"坡面措施减水减沙机理研究"(2001-0303)
