Early rice farming and anomalous methane trends

被引:96
作者
Ruddiman, William F. [1 ]
Guo, Zhengtang [2 ]
Zhou, Xin [2 ,3 ]
Wu, Hanbin [4 ]
Yu, Yanyan [2 ,3 ]
机构
[1] Univ Virginia, Dept Environm Sci, Charlottesville, VA 22904 USA
[2] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[4] Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China
基金
美国国家科学基金会;
关键词
D O I
10.1016/j.quascirev.2008.03.007
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
The anthropogenic explanation for the increase in atmospheric methane concentration during the last 5000 years requires large CH4 emissions from human activities beginning early in the Bronze Age. This paper presents a compilation of 311 archeological sites in rice-growing regions of China, The number of new sites between 6000 and 4000 years ago increased almost ten-fold compared with those during previous millennia. This early spread of rice production across most of the area in China where irrigated rice is grown today supports the hypothesis that early farming caused the anomalous methane reversal. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1291 / 1295
页数:5
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