Lake sediment records on climate change and human activities since the Holocene in Erhai catchment, Yunnan Province, China

作     者：R. Matsumoto 

作者机构：Geology Institute Tokyo University Tokyo 113 Japan 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2005年第48卷第3期

页      面：353-363页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0704[理学-天文学] 

基　　金：This work was Supported by the Chinese Academy of Sciences(Gant Nos.KZCX2-SW-118,and KZCX1-10-01) Leverhulme Tnust grant F00025/E 

主　　题：climate change, human activity, Holocene, lake sediment, Erhai Lake in Yunnan Province. 

摘      要：According to high-resolution analyses on multi-proxy of sediment core from the Er- hai Lake, Yunnan Province, the sequence of climatic and environmental change since the Holo- cene has been reconstructed based on accurate dating. The results show that climate had tran- sited from cold-wet to warm-wet during ca. 12950-8399 aBP in this area, and the transition happened in ca. 10329 aBP. Due to the enhancing southwest Asian monsoon and increasing precipitation, the lake-level of the Erhai Lake began to rise after ca. 10329 a BP. Climate in the catchment was warm and wet during the mid-Holocene, and the warmest stage appeared in ca. 8399-6371 a BP. The lake-level descended in the mid-Holocene because of the decrease of effective moisture in the basin. Human activities appeared in ca. 6371 a BP, and the initial man- ner mainly focused on deforestation. Up to ca. 2139 a BP, due to the amount of immigration into this area, the cultivation was developed widely, which was followed by mining (coal mine).