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。
关键词:
黑钙土,
冰卷泥,
CaCO3沉积,
演变
Abstract: 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.
Key words:
Chernozem soi,
Involutions,
CaCO3 deposition,
Evolution
中图分类号:
张伟华, 芦永兴, 吕粉桃, 史长青, 周心澄. 青藏高原东缘山地土壤现代冰卷泥发生及其历史演变[J]. 华北农学报, 2005, 20(S1): 69-72. doi: 10.7668/hbnxb.2005.S1.019.
ZHANG Wei-hua, LU Yong-xing, LV Feng-tao, SHI Chang-qing, ZHOU Xin-cheng. Formation of Modern Times Involutions of Hilly Country Soil and their Historical Evolution in Altiplano of Qingzang[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(S1): 69-72. doi: 10.7668/hbnxb.2005.S1.019.