根据一份150年的泥炭记录重建的三江平原大气黑碳历史趋势。
Historical trends of atmospheric black carbon on Sanjiang Plain as reconstructed from a 150-year peat record.
作者信息
Gao Chuanyu, Lin Qianxin, Zhang Shaoqing, He Jiabao, Lu Xianguo, Wang Guoping
机构信息
1] Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China [2] University of Chinese Academy of Sciences, Beijing, 100049, China.
1] Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China [2] Department of Oceanography and Coastal Sciences, School of the Coast & Environment, Louisiana State University, Baton Rouge, LA 70803, USA.
出版信息
Sci Rep. 2014 Jul 17;4:5723. doi: 10.1038/srep05723.
Black carbon (BC), one of the major components of atmosphere aerosol, could be the second dominant driver of climate change. We reconstructed historical trend of BC fluxes in Sanjiang Plain (Northeast China) through peat record to better understand its long-term trend and relationship of this atmosphere aerosol with intensity of human activities. The BC fluxes in peatland were higher than other sedimentary archives. Although global biomass burning decreased in last 150 years, regional large scale reclaiming caused BC fluxes of the Sanjiang Plain increased dramatically between 1950s' and 1980s', most likely resulting from using fire to clearing dense pastures and forests for reclaiming. The BC fluxes have increased since 1900s with increasing of the population and the area of farmland; the increase trend has been more clearly since 1980s. Based on Generalized additive models (GAM), the proportional influence of regional anthropogenic impacts have increased and became dominant factors on BC deposition.
黑碳（BC）是大气气溶胶的主要成分之一，可能是气候变化的第二大主导驱动因素。我们通过泥炭记录重建了中国东北三江平原黑碳通量的历史趋势，以更好地了解其长期趋势以及这种大气气溶胶与人类活动强度之间的关系。泥炭地中的黑碳通量高于其他沉积记录。尽管在过去150年中全球生物质燃烧有所减少，但20世纪50年代至80年代期间，区域大规模开垦导致三江平原的黑碳通量急剧增加，这很可能是由于用火清理茂密的牧场和森林以进行开垦。自20世纪以来，随着人口和农田面积的增加，黑碳通量不断上升；自20世纪80年代以来，这种上升趋势更加明显。基于广义相加模型（GAM），区域人为影响的比例影响有所增加，并成为黑碳沉积的主导因素。
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