期刊论文

中文

水土保持学报

1009-2242

2017

31

2

97-102

10.13870/j.cnki.stbcxb.2017.02.018

国家自然科学基金项目（41471185） 湖南省教育厅科学研究重点项目（15A084）

本校为第一机构

为探究南方地区典型土壤水力性质的差异,采用压力膜法、定水头渗透法和一维水平土柱吸渗法对粘性潮土、沙性潮土、红壤、水稻土和紫色土5种南方典型土壤的水动力学参数进行室内测定,对比分析了各土壤水力特征的差异及其产生的原因。结果表明:土壤质地和粘粒含量是影响土壤水力特征的主要因素;粘性潮土、沙性潮土属于级配良好土,而红壤、紫色土、水稻土属于级配不良土,粘性潮土、沙性潮土、红壤、紫色土、水稻土饱和导水率依次增大,分别为1.75×10~(-3),3.15×10~(-3),4.77×10~(-3),11.02×10~(-3), 11.87×10~(-3) cm/min;相对水稻土和沙性潮土而言,其他3种试验土持水性较高。土壤有效水含量为...

Soil hydraulic properties are important factors affecting hydrologic processes on soil surface and efficiency of irrigation and drainage. The aim of this study was to explore the differences in soil hydraulic properties in South China. The pressure membrane method, the constant head seepage method, one-dimensional horizontal soil column were used to measure the hydrodynamic parameters of five typical soils （clay fluvo- aquic soil, sandy fluvo-aquic soil, red soil, paddy soil, and purple soil） in South China. The differences in soil hydraulic ...