Recovery of the forest ecosystem in the tropical lowlands of northern Guatemala after disintegration of Classic Maya polities
Recovery of the forest ecosystem in the tropical lowlands of northern Guatemala after disintegration of Classic Maya polities
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DOI：
10.1130/g30797.1
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发表时间：
2010-06-01
期刊：
影响因子：
5.8
通讯作者：
Kennett, Douglas J.
中科院分区：
文献类型：
--
作者：
Mueller, Andreas D.;Islebe, Gerald A.;Kennett, Douglas J.
我们采用古湖泊学的方法来调查热带森林的恢复和土壤稳定，随后放弃与古典玛雅政体的解体。A. D. 800-1000.我们使用的岩石学，地球化学，磁学和孢粉学的数据，从佩滕伊察湖沉积岩芯在危地马拉北方的玛雅低地。沉积物岩心年代学是利用陆地木材和木炭碎片的放射性碳测年法编制的。我们的研究结果表明，在没有大量的人口和广泛的农业活动，Peten森林恢复在潮湿的气候条件下，在80-260年的跨度。土壤稳定postdates花粉证据森林再生长地层，需要120和280年之间。我们的结论是，热带森林生态系统的分水岭的贝登伊察湖已重建的早期后古典时期（A。D. 1000-1200）。
We employed paleolimnological methods to investigate tropical forest recovery and soil stabilization that followed abandonment of agricultural systems associated with disintegration of Classic Maya polities ca. A. D. 800-1000. We used lithological, geochemical, magnetic, and palynological data from sediment cores of Lake Peten Itza in the Maya Lowlands of northern Guatemala. Sediment core chronology was developed using radiocarbon dates on terrestrial wood and charcoal fragments. Our results indicate that in the absence of large human populations and extensive farming activities, Peten forests recovered under humid climate conditions within a span of 80-260 yr. Soil stabilization postdates pollen evidence of forest regrowth stratigraphically, and required between 120 and 280 yr. We conclude that the tropical forest ecosystem in the watershed of Lake Peten Itza had been reestablished by the early Postclassic Period (A. D. 1000-1200).