【作者】 杨艳芬； 王全九； 白云岗；

【Author】 Yang Yanfen~1,Wang Quanjiu~(1,2),Bai Yungang~3 (1.Institute of Water Resources,Xi’an University of Technology,Xi’an,Shanxi 710048, China;2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources/State Key Laboratory of Soil Erosion and Dry Land Farming on the Loess Plateau,Yangling,Shanxi 712100,China;3.Xinjiang Institude of Water Resources and Hydropower Research,Urumqi 830049,China)

【机构】 西安理工大学水资源研究所； 中国科学院水利部水土保持研究所/黄土高原土壤侵蚀与旱地农业国家重点实验室； 新疆水利水电科学研究院；

【摘要】 土壤中碎石的存在改变了土壤结构和土壤水分运动规律,为探究点源入渗条件下碎石含量对土石混合介质入渗特性的影响,本文利用点源入渗试验资料对其进行分析。结果表明:随着含石量的增加,积水半径、水平湿润距离、垂直湿润距离、湿润体体积呈增加趋势;0～10%含石量范围内,碎石含量对水平湿润距离、垂直湿润距离、点源湿润体体积、点源湿润体内土壤含水量分布的影响比10%～50%含石量范围内明显;点源湿润体形状系数与含石量之间、点源湿润体含水量均值与含石量之间均呈正相关关系。更多还原

【Abstract】 Soil’s structure and movement law of soil water is changed by rock fragment,in order to study the influence of rock fragment content on infiltration characteristics of stony-soil medium under the condition of point resource infiltration,point resource infiltration experiment was conducted to illustrate it.Major findings are as follows:ponding radius,horizontal wetted distance,vetical wetted distance and the volume of wetted body are increased with the increase of rock fragment content;when the rock fragment content within 0～10%,there is a more significant effect of rock fragment content on horizontal wetted distance,vetical wetted distance, the volume of wetted body and soil water content distribution than the rock fragment content within 10%～50%;there is a positive linear relationship between shape factor of wetted body and rock fragment content,average soil water content and rock fragment content.更多还原