陕西师范大学学报：自然科学版2012，Vol.40Issue(2)：93-97,5.
咸阳南寺村全新世黄土-古土壤序列特征及其意义
The Holocene loess-paleosol sequence features and its significance of Nansicun profile in Xianyang city
摘要
Abstract
Through the analysis about soil layer, magnetic susceptibility, particle size, pH value,calcium carbonate content and some chemical element determination of Holocene NSC profile in the middle reaches of the Weihe River, it was found that the magnetic susceptibility and clay content of Malan loess layer L1 are the lowest in the whole section,and are the highest in paleosol So. And they are moderate in transition layer Lt and modern soil layer L0. pH value, calcium carbonate content and some element parameters have a good relationship with magnetic susceptibility,and it suggested that in the early of Holocene,the climate was mild and dry, the rainfall was little,and the biochemical weathering was weak. Entering the Holocene warm period, the climate became warm and humid, the rainfall increased, Loess accumulation rate decreased, the chemical weathering enhanced and pedogenesis was distinct. In the late of Holocene, climate became deteriorating and drying, pedogenesis was abated and dust accumulation was enhanced.关键词
全新世/渭河/黄土-古土壤/序列特征Key words
Holocene/Weihe River/loess-paleosol, sequence characteristics分类
天文与地球科学引用本文复制引用
赵彩萍,庞奖励,黄春长,查小春,赵梅..咸阳南寺村全新世黄土-古土壤序列特征及其意义[J].陕西师范大学学报：自然科学版,2012,40(2):93-97,5.基金项目
国家自然科学基金重点资助项目 （）
中央高校基本科研业务费专项资金项目（GK20901007）. （）
