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Collapse of Classic Maya Civilization Related to Modest Reduction in Precipitation

renchunxiao 添加于 2012/2/27 10:58:56  1403次阅读 | 1次推荐 | 0个评论

The disintegration of the Classic Maya civilization in the Yucatán Peninsula and Central America was a complex process thatoccurred over an approximately 200-year interval and involved a catastrophic depopulation of the region. Although it is wellestablished that the civilization collapse coincided with widespread episodes of drought, their nature and severity remainenigmatic. We present a quantitative analysis that offers a coherent interpretation of four of the most detailed paleoclimaterecords of the event. We conclude that the droughts occurring during the disintegration of the Maya civilization representedup to a 40% reduction in annual precipitation, probably due to a reduction in summer season tropical storm frequency and intensity.

作 者:Medina-Elizalde, Martín; Rohling, Eelco J.
期刊名称: Science
期卷页: 02/24/2012 第335卷 第6071期 956~959页
学科领域:地球科学 » 地质学 » 古生物学和古生态学
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原文链接:http://www.sciencemag.org/content/335/6071/956.abstract?sid=156988ab-e3a7-41c9-9907-ef9d545464e9
DOI: 10.1126/science.1216629
ISBN: 0036-8075
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相关报道: http://paper.sciencenet.cn/htmlpaper/20122271101119322641.shtm
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