漓江流域末次冰期以来气候环境变化研究进展
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本文为国家重点研发计划项目(编号:2019YFC0507501-01)、中国地质科学院基本科研业务费项目(编号:2020006)、广西自然科学基金资助项目(编号:2020GXNSFAA159066, 2017GXNSFFA198006,2018GXNSFBA050004),广西重大科技创新基地建设项目(编号:2018-242-Z01)和中国地质调查局项目(编号:DD20190672)的成果


Climatic and environmental changes since the Last Glacial in Lijiang River Basin
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    摘要:

    为更好地认识漓江流域过去气候环境变化,更好服务于漓江流域未来气候环境预测、生态环境建设及资源环境可持续发展,本文对漓江流域末次冰期以来的气候环境研究现状进行了总结和综述。总结了年代学、现代过程研究、古气候环境重建和古人类演化方面的进展及存在的问题,并对下一步的研究方向进行了分析和探讨。希望能促进华南地区过去气候环境变化研究,并对经济社会可持续发展提供借鉴和参考,助力桂林可持续发展创新示范区建设。

    Abstract:

    Lijiang River Basin is famous for its karst geomorphology.In order to better understand the paleoclimate variations and support the sustainable development of social and environment in Lijiang River Basin,we summarized the research progresses of past climate change in this area including chronology,cave monitoring,paleoclimate and environment reconstruction and human evolution. Some main conclusions can be archived as follow:①The uranium-series dating is not suit for the speleothems dating in this area for the low uranium of the bedrock,but the aragonite stalagmite may be good for dating and for paleoclimate reconstruction.②The terrestrial plants and animals can be used for 14C dating,but not for aquatic plants and animals,for the“dead carbon”effect of karst water.③Long-term cave monitoring result indicates the cave air temperature decreased and the karst process increased as the vegetation restoration.④The systematic atmospheric precipitation—cave drip water—modern calcite monitoring and recently deposited stalagmites research support the stalagmiteδ18O in this area can reflect the rainfall variation in decadal scale.⑤The first and second terraces of Lijiang River and the peat in Lijiang River Basin were formed in middle Holocene and MIS3,respectively, human appeared in this area since MIS3,and emigrated out of the cave since the middle Holocene.All these evidences indicate higher precipitation in these two periods for the stronger summer monsoon.The summer monsoon and precipitation gradually decreased since the middle Holocene.

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殷建军,汪智军,唐伟,蓝高勇,李建鸿.2021.漓江流域末次冰期以来气候环境变化研究进展[J].地质论评,67(2):489-502,[DOI].
YIN Jianjun, WANG Zhijun, TANG Wei, LAN Gaoyong, LI Jianhong.2021. Climatic and environmental changes since the Last Glacial in Lijiang River Basin[J]. Geological Review,67(2):489-502.

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  • 收稿日期:2020-11-22
  • 最后修改日期:2021-01-26
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  • 在线发布日期: 2021-03-20
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