摘要
调查了中山大学珠海校区滨海小流域内的土壤质地情况,着重分析了其中一个径流试验场A中的土壤颗粒组成;根据实测土壤含水量、土壤吸力数据,用Gauss曲线拟合了吸水过程的土壤水分特征曲线,并编制了计算一维非饱和土壤水运动的计算机程序,模拟分析了径流试验场A在一次降雨入渗过程中、土壤含水量、土壤基质势的变化,获得了不同深度处的土壤吸水过程的水分特征曲线。
We performed an investigation on soil texture in the small coastal watershed in Zhuhai campus of Sun Yat-sen University in the delta area of the Pearl River and analyzed the soil particle composition of runoff experimental plot A particularly.According to the measured soil water content and soil suction data,the soil moisture characteristic curve in soil absorption process is fitted with Gauss curve.A computer program for calculating one-dimensional movement of unsaturated soil moisture is developed,and the variation of soil moisture content and soil matrix potential at plot A during a process of rainfall infiltration is simulated.
出处
《人民长江》
北大核心
2010年第9期9-13,共5页
Yangtze River
基金
国家自然科学基金(40571027)
"985工程"GIS与遥感的地学应用科技创新平台(105203200400006)
广东省自然科学基金项目(9251027501000021)
广东水利科技创新与推广资助项目(2009年度)
关键词
砂壤土
土壤水分特征曲线
土壤含水量
土壤吸力
GAUSS
降雨入渗
珠海
sandy loam
soil moisture characteristic curve
soil moisture content
soil suction
Gauss curve
rainfall infiltration
Zhuhai City
