摘要
为研究北京西山地区古土壤母质上发育的土壤的发生分类 ,用土壤化学和土壤物理的方法 ,分析了两个受古红色粘土影响的土壤之粘土矿物种类和表面化学特性 .结果表明 :粘土矿物种类主要为伊利石、伊利石 蒙皂石混层矿物 ,以及绿泥石和高岭石等 .剖面上下层之间的粘粒全量组成和性质分异不明显 ,硅铝率为 1 .6～ 1 .9,和我国南方的红壤相似 .土壤发育受红色粘土类成土母质影响较大 。
As for the investigation of soil genesis and classification which was derived from the red clay palaeosol in lower West Mountain area of Beijing, two soil profiles were studied for the clay mineral composition and surface characteristics. The results show that the predominant clay minerals are illite, illite and smectite mixed layer mineral, and others are chlorite and kaolinite. There is no distinct disparity for chemical components and characteristics of the clay fractions along the profiles. The molar ratio of silics alumina are between 1.6～1.9, similar to that of the red soil in South China. The soil development has been affected deeply by the red clay palaeosol parent material but less by the contemporary soil forming factors.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2002年第5期35-38,共4页
Journal of Beijing Forestry University
基金
北京市自然科学基金资助项目
