摘要
通过在径流小区上人工模拟降雨，研究了南方主要的低丘土壤的渗透性能。小区设在一均匀的第四纪红色粘土坡面上（坡度约７°）用人工填充研究土壤建成，小区长８ｍ，宽１．５ｍ，填充土壤厚度４０ｃｍ。结果表明，第四纪红粘土发育的红壤（包括网纹土、耕种和荒地红粘土）和花岗岩发育的荒地红壤较红砂岩发育的红壤（包括耕种和荒地２种）和荒地紫色土的渗透速度快，不容易产生径流和侵蚀。
study was cnducted to evaluate infiltration properties of soils mainly found in thehilly area of South China.Rainstorms was simulated on 8 runoff plots with 8m×1.5m。Runoff plotsin which studied soils were artificially refilled were constructed on a slope of 12%.The depth of re-filled soils is 40cm Results indicated that silos derived from Quaternary red clay (including plithitic ,arable and rangeland soils)and granite (rangdland soils )have faster infiltration rates and are not easi-er to produce runoff and soil erosion than soils derived fron red sand stone (arable and rangelandsoils)and purple sand stone (rangeland soil).
出处
《水土保持学报》
CSCD
北大核心
1995年第3期1-8,共8页
Journal of Soil and Water Conservation
关键词
人工降雨
土壤
渗透
丘陵地
rainfall simulation
soil
infiltration
