| 中国岩溶碳汇过程与效应研究成果及展望 |
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| 作者姓名： | 黄芬 张春来 杨慧 曹建华 李为 周运超 |
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| 作者单位： | 1. 中国地质科学院岩溶地质研究所，国土资源部广西岩溶动力学重点实验室，广西 桂林 541004; 2. 联合国教科文组织国际岩溶研究中心，广西 桂林 541004;3. 华中科技大学，湖北 武汉 430074;4. 贵州大学，贵州 贵阳 550025 |
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| 基金项目： | 中国地质调查“中国岩溶碳汇过程及效应研究(编号:1212011087120)”项目资助。 |
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| 摘 要： | 我国是世界能源消费和CO2总排放量第一大国，碳减排任务艰巨，责任重大。据调查，我国岩溶碳汇与森林、土壤碳汇在同一数量级，但其要在国家层面发挥重大作用，其影响因素及机理需要进一步调查和阐释，估算精度还有待提高。系统总结了流域尺度岩溶碳循环过程，并重点揭示了生物作用对岩溶碳循环的影响;研究了水圈二氧化碳的再循环规律;评估了外源水对岩溶作用的影响程度和促进强度;利用数学回归模型估算区域岩溶碳汇通量，提高了由点到面岩溶碳汇通量估算精度，并提出增加岩溶碳汇潜力技术途径，为我国岩溶碳汇通量科学估算提供支撑。
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| 关 键 词： | 岩溶碳循环 影响因素 生物作用 外源水 增汇途径 |
| 收稿时间： | 2014-11-07 |
Achievements and Prospects in the Study of Karst Carbon Sink Processes and Effects in China |
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| Authors: | HUANG Fen ZHANG Chun-lai YANG Hui CAO Jian-hua LI Wei ZHOU Yun-chao |
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| Institution: | 1. Institute of Karst Geology, CAGS, Key Laboratory of Karst Dynamics, MLR/ Guangxi, Guilin, Guangxi, 541004, China;2. International Research Center on Karst under the Auspices of UNESCO, Guilin, Guangxi 541004, China;3. Huangzhong University of science and technology, Wuhan, Hubei 430074, China;4. Guizhou University, Guiyang, Guizhou 550025, China |
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| Abstract: | China, as the biggest energy consumer with large amounts of CO2 emissions, is faced with an arduous task and responsibility for carbon emission reduction. According to previous studies, karst carbon sequestration flux has the same magnitude as forest carbon sequestration and soil carbon sequestration in the country. In order to make the best of karst carbon sequestration, it is necessary to further investigate and clarify the influencing factors and mechanisms of karst carbon sequestration, and to improve the estimation accuracy. In this paper, systematic discussions are made on the process of carbon cycle at watershed scale, with the focus on the biological effects of karst carbon cycle, study of the regulations of carbon dioxide recycle in hydrosphere, and assessment of the influence level and promote strength of allogenic water to karstification. By using a mathematical regression model, we estimated the carbon fluxes in karst region to improve the overall estimation precision, and proposed techniques to increase the karst potential carbon sequestration. All of these results provide fundamental support for the scientific estimation of karst carbon sequestration flux in China. |
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| Keywords: | Karst carbon cycle effect factors biological effects allogenic water carbon sequestration potential technical approaches |
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