青藏高原东缘山地土壤现代冰卷泥发生及其历史演变  

Formation of Modern Times Involutions of Hilly Country Soil and their Historical Evolution in Altiplano of Qingzang

作　　者：张伟华[1] 芦永兴[1] 吕粉桃[2] 史长青[2] 周心澄[2] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019 [2]北京林业大学水土保持学院,北京100083

出　　处：《华北农学报》2005年第F12期69-72,共4页Acta Agriculturae Boreali-Sinica

基　　金："十五"国家科技攻关项目(2001BA510B01)

摘　　要：文章研究了青藏高原东缘山地土壤黑钙土冰卷泥的形成过程、形态变化及发育特征。结果表明:(1)晚全新世以来,黑钙土冰卷泥层位逐渐下移,且存在加速之势,这与全球气候变化密切相关。(2)黑钙土发生分化,存在向栗钙土演化趋势,CaCO3层由粉末沉积转变为粒状沉积,且层位提升,CaCO3二次沉积普遍,溶质表聚现象加剧,与冰卷泥层位下移可互为佐证。In this article,the formation process,morphology variation and development features of involutions of chernozem soil were researched in eastern mountain area of Qingzhang plateau. The results were as follows： （1）The solum of involutions went down and there had a trend of speedup since late Holocene. The appears were correlated to global environmental variation. （2）The chernozem soil had evolved to kanstanozems since late Holocene.

关 键 词：黑钙土 冰卷泥 CaCO3沉积 历史演变 发育特征 

分 类 号：S155.28[农业科学—土壤学]