摘要
研究了鄂东南地区５种母质发育的红壤水分特性。结果表明，红壤的持水性以第四纪红色粘土、泥质页岩和砂质页岩发育的红壤持水性较强，石英砂岩、花岗岩发育的红壤持水性较弱。土壤水分的有效性以表土层的土壤水分有效性较高，土壤的导水性和土壤的通气孔隙有关。
The water characteristics of red soils derived from five parent materials in the southeast of Hubei province were studied.The results show that:The water-holding capacity of red soils derived from quaternary red clay,argillaceous shale and arenaceous shale is more than that of red soils derived from granite and quartzy sandstone.The relation between the water-holding capacity of soil and the clay(<0.002 mm)content,CEC, specific surface area and capillary porosity is close.The available water capacity and average specific water capacity of surface soil are greater than those of their subsoil and bottom soil.The more the aeration porosity,the more the saturated hydraulic conductivity,so the relation between the aeration porosity and the saturated hydraulic conductivity is close.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1994年第3期254-261,共8页
Journal of Huazhong Agricultural University
关键词
红壤
土壤
水分性质
水分管理
red soil,soil water characteristics,soil water management
