| 摘要: |
| 本文系统地对发育于北京山前地带的两种古土壤的理化性质、矿物学性质和形态学特征进行了研究,并将之与现代北京褐土的发生性质进行了比较。结果表明:发育在山前石灰岩残丘上的古土壤是上新世时期湿热气候条件下的产物,发育在山前台地老黄土上的古土壤是中更新世时期温暖湿润气候条件下的产物;自上新世以来,北京地区总的气候变化是趋向于干冷。 |
| 关键词: 古土壤 发生特性 气候变化 |
| DOI： |
| 投稿时间：1993-03-08 |
| 基金项目:国家教委高校博士点基金课题资助 |
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| Two Kinds of Paleosols and Their Forming Climate in the Piedmont of Beijing |
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| Abstract: |
| This paper presents the physical,chemical,mineralogical charateristics of two kinds of pale- osols in the piedmont area of Beijing.Through comparing them with the Cinnamon soil which is regarded as the soil developed in the morden climate,The result showed that they are different from Cinnamon soil:one paleosol locating on the limestone-hill was developed in the hot and humid climate,dating back to Pliocene Epoch;another paleosol locating on the loess-piedmont developed dveeloped in the warm and humid clima... |
| Key words: palesols genetic characteristics climale change |
