| 岩溶作用与碳循环”研究进展 |
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| 引用本文： | 袁道先.岩溶作用与碳循环”研究进展[J].地球科学进展,1999,14(5):425-432. |
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| 作者姓名： | 袁道先 |
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| 作者单位： | 国土资源部岩溶地质研究所岩溶动力学开放研究实验室,广西,桂林,541004 |
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| 基金项目： | 国家自然科学基金，国土资源部重点基础项目 |
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| 摘 要： | IGCP 379项“岩溶作用与碳循环”是中国建议并组织实施的,于1995～1999年执行。作者对1995年以来项目的实施情况及其研究进展作了总结,并对每一科学目标的研究进展进行了综述:①表层岩溶系统碳循环与大气CO2源汇的主要进展有3方面:扩展了研究地区;揭示了表层岩溶系统碳循环的运行机制;对表层岩溶作用回收大气CO2量进行了估算。②深部CO2释放问题的主要进展有:发现了更多的深部CO2释放带;揭示了深部CO2气体来源问题;对西藏地区CO2源汇问题进行了深入的探讨。③以岩溶记录重建环境变化过程的主要进展有:研究时空范围不断扩大;采取多种新技术、新方法获取更多古环境信息;不断提高研究分辨率。
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| 关 键 词： | IGCP 岩溶作用 碳循环 科学目标 全球环境变化 全球变化研究 |
| 收稿时间： | 1999-06-01 |
PROGRESS IN THE STUDY ON KARST PROCESSES AND CARBON CYCLE |
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| YUAN Daoxian.PROGRESS IN THE STUDY ON KARST PROCESSES AND CARBON CYCLE[J].Advance in Earth Sciences,1999,14(5):425-432. |
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| Authors: | YUAN Daoxian |
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| Institution: | Institute of Karst Geology,MLR,Guilin 541004,China |
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| Abstract: | The IGCP 379 project,“Karst Processes and the Carbon Cycles”was proposed and organiged by Chinese scientists.Its duration time is five years from 1995 to 1999.In this paper the research situation and its developments have been presented.(1)The developments about the carbon cycle of the epigenic karst system and the sources and sinks of CO2 in the atmosphere have three aspects:Its study areas have been extended;The work processes of the carbon cycle of the epigenic karst system have been disclosed;The CO2 amounts uptaken by the epigenic karst system have been evaluated.(2)There are three aspects about the developments of the CO2releasing from Earth' s depth:The more CO2releasing zones have been discovered;The sources of CO2 have been identified;The problems about the sources and sinks of CO2 in the Tibet have been argued furtherly.(3)The developments about the paleoenviomental reconstruction with the karst records have three aspects:The temporal and spatial ranges have been enlarged remarkably;More and more new technologies and methods are used to attain more paleoenvironment information; The resolution has been promoted continuously. |
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| Keywords: | IGCP |
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