| 引用本文: | 陈骥,曹军骥,刘玉,魏永林.2013.土壤呼吸对模拟增温的响应与不确定性[J].地球环境学报,(4):1415-1421 |
| CHEN Ji,CAO Jun-ji,LIU Yu,WEI Yong-lin.2013.The response and uncertainties of soil respiration to experimental warming[J].Journal of Earth Environment,(4):1415-1421 |
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| 摘要: |
| 温度升高是全球变化的主要表现方式之一，生态系统的许多物理、化学过程都和温度相关，因此温度的变化必然会引起一系列生态系统过程发生变化。土壤碳库在全球变化研究中的地位日益突出，土壤呼吸是土壤碳库碳平衡中一个不容忽视的重要过程，研究土壤呼吸有助于揭示土壤碳库动态机理。土壤呼吸是陆地生态系统把植物通过光合作用固定的CO2返回到大气的主要途径。本文综合分析了近年来的研究论文和已有的整合分析研究结果，以期：（1）讨论引起土壤呼吸变化的主要原因；（2）总结近年来土壤呼吸对模拟增温响应的不确定性；（3）展望未来土壤呼吸的研究方向及难点。 |
| 关键词: 土壤呼吸 模拟增温 全球变化 不确定性 |
| DOI：10.7515/JEE201304008 |
| CSTR： |
| 分类号:X524 |
基金项目:国家十一五科技支撑计划项目(2007BAC30B01)；国家十二五科技支撑计划项目(2012BAH31B03)；黄土与第四纪地质国家重点实验室开放基金项目(SKLLQG1303)
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| The response and uncertainties of soil respiration to experimental warming |
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CHEN Ji1, CAO Jun-ji1,3, LIU Yu1, WEI Yong-lin5
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1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi′an 710075, China; 2.University of Chinese Academy of Sciences, Beijing 100049, China; 3.Institute of
Global Environment Change, Xi′an Jiaotong University, Xi′an 710049, China; 4.Qinghai Academy of Animal Husbandry and Veterinary Sciences, Xining 810016, China; 5.Haibei Animal Husbandry Meteorological Experiment Station of Qinghai Province, Haibei 810200, China
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| Abstract: |
| As one of the main forms of global climate change, increased temperature would definitely influence ecosystem′s physical and chemical processes, as these processes were inherently temperature-related. Soil carbon storage was playing an increasing important role in the study of global climate change. As a key process of terrestrial carbon cycles, soil respiration was the main way of carbon back to atmosphere. Studying the response of soil respiration to experimental warming could contribute to understanding the mechanisms and dynamics of soil carbon sink. Based on thorough review of the research articles and meta-analysis results on response of soil respiration to experimental warming, the objectives of the current study were to: (1) explore reasons of the variation of soil respiration to experimental warming; (2) synthesis the uncertainties of the response of soil respiration to experimental warming; (3) prospect the future research topics and difficulties. |
| Key words: soil respiration experimental warming global change uncertainty |
