Understanding the ecological background of rice agriculture on the Ningshao Plain during the Neolithic Age: pollen evidence from a buried paddy field at the Tianluoshan cultural site
Understanding the ecological background of rice agriculture on the Ningshao Plain during the Neolithic Age: pollen evidence from a buried paddy field at the Tianluoshan cultural site
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DOI：
10.1016/j.quascirev.2012.01.007
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发表时间：
2012-03-05
影响因子：
4
通讯作者：
Shen, Huadong
中科院分区：
文献类型：
--
作者：
Li, Chunhai;Zheng, Yunfei;Shen, Huadong
大气CH4水平自5ka以来的逐步上升被认为是人类农业活动的结果，人类农业活动将原本是碳汇的林地变成了稻田。越来越多的新石器时代文化遗址在中国东部沿海地区出土，这为验证这一假设提供了独特的机会。在这里，我们提供了中国东部宁绍平原田螺山文化遗址埋藏的水田的详细孢粉数据，以重建与建立水田有关的生态条件。地层资料、放射性碳测年和孢粉分析表明，植被经历了6个阶段的演化，水田的发育时间为7000~4200卡。YR BP。我们在研究地点没有发现刀耕火种农业的证据。再加上没有灌溉系统，我们的花粉数据表明，这个地点的稻田来自湿地。因此，我们的发现不支持这样的假设，即自中全新世以来，人为导致的森林砍伐在大气CH4上升中发挥了重要作用。(C)2012爱思唯尔有限公司。保留所有权利。
The progressive rise of atmospheric CH4 level since 5 ka has been hypothesized to result from human agricultural activities that turned forested lands, which would otherwise be a carbon sink, into paddy fields. Increasing numbers of Neolithic cultural sites unearthed in coastal eastern China, providing unique opportunities to test this hypothesis. Here, we present detailed pollen data from a buried paddy field at Tianluoshan cultural site on the Ningshao Plain, eastern China, to reconstruct the ecological conditions associated with the establishment of paddy fields. Stratigraphic data, radiocarbon ages, and pollen analyses show that vegetation underwent six phases of evolution and paddy fields were developed from 7000 to 4200 cal. yr BP. We found no evidence of slash-and-burn agriculture at the study site. Together with no presence of the irrigation system, our pollen data suggest the paddy fields at this site originated from wetlands. Hence, our findings do not support the hypothesis that anthropogenic-induced deforestation play ed a significant role in the rise of the atmospheric CH4 rise since the middle Holocene. (C) 2012 Elsevier Ltd. All rights reserved.