全新世红原泥炭碳积累速率及其影响因素研究
Carbon Accumulation Rate and its Influence Factors in the Hongyuan Holocene Peat, Southwest China
查看参考文献29篇
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文摘
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探讨了全新世中国西南地区红原泥炭地的碳积累速率与气候变化的响应机制,综合腐殖化度、有机碳含量、干容重和纤维素碳氧同位素多指标,重建了红原泥炭地全新世气候变化和碳积累速率变化历史。在温暖湿润早全新世(11. 5?6.2 ka B. P.)初级生产力超过泥炭分解,是其快速积累期。此阶段红原泥炭碳积累具有明显北方泥炭碳特征。4. 5?2. 5 ka B. P.气候温凉湿润既能促进初级生产力发展,又能抑制泥炭分解,出现高速积累期,此阶段红原泥炭积累速率具有明显热带泥炭碳特征。 |
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其他语种文摘
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By analyzing the high-resolution records of peat humification degree, carbon content, dry bulk density and carbon and oxygen isotopes in cellulose, this paper reconstructed the Holocene climate changes and carbon accumulation rate of the Hongyuan peatland, southwest China. In the period of 11. 5?6. 2 ka B. P.,the warm and humid early Holocene, the Hongyuan peat underwent a high carbon accumulation rate and showed characteristics of northern peatlands, the primary productivity was much higher than the decomposition. In the period 4. 5?2. 5 ka B. P., the cool and moist climate promoted rapid development of net primary productivity and inhibited peat decomposition,the Hongyuan peat underwent a high carbon accumulation rate and showed the characteristics of tropical peatlands. |
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来源
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矿物岩石地球化学通报
,2014,33(3):309-316 【核心库】
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DOI
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10.3969/j.issn.1007-2802.2014.03.004
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关键词
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红原泥炭
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全新世
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气候变化
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碳积累速率
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初级生产力
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地址
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-2802 |
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学科
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地质学 |
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基金
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国家自然科学基金项目
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文献收藏号
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CSCD:5182487
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参考文献 共
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