Two-million-year record of fire in temperate East Asia
Two-million-year record of fire in temperate East Asia
复制标题
东亚温带地区200万年火灾记录
DOI：
10.1016/j.quascirev.2022.107765
复制
发表时间：
2022-11
影响因子：
4
通讯作者：
Xiaoqiang Li
中科院分区：
文献类型：
--
作者：
Hui Shen;Xinying Zhou;Jilong Yang;Junchi Liu;Yunzhuang Hu;Guoqiao Xiao;Yan Zheng;Jian Wang;Shi-Xia Yang;Jianping Yue;Keliang Zhao;Xiaoqiang Li
火是塑造陆地生态系统最活跃的因素之一，在气候、植被和人类之间复杂的相互作用中发挥着重要作用。在这里，我们提供了来自温带东亚200万年沉积序列的微碳和稳定碳同位素的记录，并用它来重建长期的火灾历史。我们的研究结果表明，火灾频率在过去的200万年波动很大，并有一个C4植物的丰度成反比。2.1- 0.3Ma期间的火灾频率相对较低，但在0.3Ma之后，更冷和更干燥的气候可能导致更频繁的火灾，人类活动也可能影响火灾状况。此外，木炭时间序列与地球轨道参数的变化相关，表明轨道驱动的日照变化对火灾的影响。在冰川期，干燥的气候导致了火灾活动的增加，这是由于燃料供应的总体增加。我们的研究结果与全球火灾记录的比较证实，调制地球轨道周期的太阳辐射变化在驱动火灾活动在第四纪发挥了关键作用。一个长达200万年的木炭序列揭示了东亚的长期火灾历史。·由于气候干燥，冰川期发生的火灾更多。·第四纪火灾是由地球轨道周期调制的日照驱动的。·自0.3 Ma以来，人为影响在驱动火灾频率方面的重要作用。
Fire is one of the most active agents in shaping terrestrial ecosystems and it has played a significant role in the complex interactions between climate, vegetation, and hominins. Here, we present records of microcharcoal and stable carbon isotopes from a two-million-year long sedimentary sequence from temperate East Asia and use it to reconstruct the long-term fire history. Our results indicate that fire frequency over the last two million years fluctuated substantially and had an inverse relationship with the abundance of C 4 plants. The fire frequency during 2.1–0.3 Ma was relatively low, but after 0.3 Ma, the colder and drier climate likely resulted in much frequent fires and anthropogenic impacts probably also affected fire regime. Additionally, the charcoal time series is correlated with variations in Earth orbital parameters, suggesting the influence of orbitally-driven insolation variations on fire. During glacial periods, the dry climate contributed to increased fire activity due to the overall increase in fuel availability. A comparison of our results with global fire records confirms that insolation variations modulated by Earth orbital cycles played a key role in driving fire activity during the Quaternary. • A two-million-year long charcoal sequence reveals long-term fire history in East Asia. • More fires occurred during glacial periods due to dry climates. • Fire during the Quaternary driven by insolation modulated by Earth orbital cycles. • Substantial role of anthropogenic impacts in driving fire frequency since 0.3 Ma.
登录
查看更多内容
东亚温带北部中更新世过渡期间的植被变化和大型哺乳动物群的进化响应
DOI：
10.1016/j.palaeo.2018.06.007
发表时间：
2018-09
期刊：
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子：
--
作者：
Zhou Xinying;Yang Jilong;Wang Shiqi;Xiao Guoqiao;Zhao Keliang;Zheng Yan;Shen Hui;Li Xiaoqiang
通讯作者：
Li Xiaoqiang
DOI：
10.1073/pnas.1214292110
发表时间：
2013-03
期刊：
Proceedings of the National Academy of Sciences
影响因子：
--
作者：
A. Daniau;M. F. Sánchez Goñi;P. Martinez;D. Urrego;V. Bout‐Roumazeilles;S. Desprat;J. Marlon
通讯作者：
A. Daniau;M. F. Sánchez Goñi;P. Martinez;D. Urrego;V. Bout‐Roumazeilles;S. Desprat;J. Marlon
基于PL02岩心木炭记录的近1.5 Ma银川盆地野火演化及其对气候变化的响应
影响因子：
4
作者：
Shi Yulan;Pan Baolin;Wei Mingjian;Li Xinling;Cai Maotang;Wang Junping;Xu Xiangke;Hu Jianmin;Shi Wei
通讯作者：
Shi Wei
自末次盛冰期以来火灾状况的变化：基于全球木炭数据综合和分析的评估
影响因子：
4.6
作者：
Power, M. J.;Marlon, J.;Zhang, J. H.
通讯作者：
Zhang, J. H.
影响因子：
4.4
作者：
Schulz, M;Mudelsee, M
通讯作者：
Mudelsee, M