摘要
通过农场原状土和回填土试验地块比较试验 ,研究了天然土壤中的大孔隙对水分和溶质在土壤中迁移的影响。运用水分及污染物耦合数值计算模型 ,分别模拟计算了水分及保守性污染物质在原状土和回填土中的迁移规律 ,模型参数反映二试验地块不同土壤结构特征 。
Macropores are very easy to be investigated in field soil. A comparing test was conducted to study the effects of macropore on water movement and solutes transport in two soil samples taken from a same field. One soil sample represents undisturbed soil and the other represents refilled soil. The classic approach of the Richards equation and advection dispersion equation is used to describe the transport of water and solutes in undisturbed soil and in refilled soil. Model parameters embody the different structure characteristics of the two soil samples.
出处
《灌溉排水》
CSCD
北大核心
2001年第4期1-4,共4页
Irrigation and Drainage
基金
国家自然科学基金资助项目 ( 5 97790 2 2 )
