【摘要】 土壤大孔隙是普遍存在的现象 ,并非例外 ,它对水及溶质在土壤中的运移有着深刻影响。分别从原状土区和回填土区随机取若干土样 ,采用离心机法测得了原状土和回填土的水分特征曲线 ,比较原状土和回填土土壤水分特征曲线的参数 ,分析了土壤中大孔隙的存在对土壤水分曲线中各参数的影响。指出在进行土壤中水及溶质运移研究中 ,必须考虑大孔隙的影响。更多还原

【Abstract】 The existing of macropores in soil is a general phenomena rather than exception. Macropores influence water and solutes transport in soil obviously. Soil specimens are taken randomly from undisturbed area and disturbed area. Soil water retention curve for undisturbed soils and those for disturbed soils are measured with centrifugal machine and the resulted are compared and analyzed. It is indicated that the influences of macropores on water and solutes transport in soils must be considered.更多还原