| 引用本文: | 仝秀芳,肖霞云,羊向东,王苏民,萧家仪.湖北太白湖孢粉记录揭示的近1500年以来长江中下游地区的气候变化与人类活动.湖泊科学,2009,21(5):732-740. DOI:10.18307/2009.0519 |
| TONG Xiufang,XIAO Xiayun,YANG Xiangdong,WANG Sumin,XIAO Jiayi.Climatic changes and human activities revealed by pollen records in Lake Taibai, Hubei Province, the middle and lower reaches of the Yangtze River region over the past 1500 years. J. Lake Sci.2009,21(5):732-740. DOI:10.18307/2009.0519 |
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| 摘要: |
| 太白湖TN1孔总长153cm岩芯的孢粉组合与炭屑指标,揭示了近1500年以来太白湖流域的植被经历了7个阶段的变化,对引起植被发生这种变化的主导因素探讨认为,520-1310AD期间,植被变化主要受气候变化的控制,人类活动的影响相对较弱;1310-1710AD期间,人类活动对植被的影响强度增加,为以自然控制为主向人类活动驱动为主转化的过渡期;1710AD以来,植被变化以人类活动驱动为主,反映的气候信号相对较弱.在孢粉组合所反映的气候变化中,具有520-720AD、1050-1310AD和自1950AD以来的三个暖期和720-1050AD、1310-1710AD期间的两个冷期. |
| 关键词: 孢粉 炭屑 气候变化 人类活动 太白湖 |
| DOI：10.18307/2009.0519 |
| 分类号: |
| 基金项目:中国科学院知识创新工程重要方向项目(KZCX2-YW-319);国家自然科学基金项目(40702029) |
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| Climatic changes and human activities revealed by pollen records in Lake Taibai, Hubei Province, the middle and lower reaches of the Yangtze River region over the past 1500 years |
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TONG Xiufang1,2, XIAO Xiayun2, YANG Xiangdong2, WANG Sumin2, XIAO Jiayi1
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1.Department of Geographical Science, Nanjing Normal University, Nanjing 210046, P.R.China;2.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China
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| Abstract: |
| Pollen analysis and charcoal indices of a 153-cm-long lake sediment core from Lake Taibai (TN1 core) in Hubei Provincedisclosed seven stages of the vegetational changes in Lake Taibai drainage area over the past 1500 years. During 520-1310AD, thevegetational changes were mainly controlled by the climatic changes and the influence of human activities on vegetation wasrelatively weak. Stage of 1310-1710AD, the influencing intensity of human activities on vegetation gradually increased, and thestage was a transitional period of main factors from natural control to human activities drive. Since 1710AD, the vegetational changeswere controlled by human activities and the climatic signal from the vegetational changes was relatively weak. According to thepollen assemblage, the climatic changes with three warm periods of 520-720AD, 1050-1310AD and since 1950AD and two coldperiods of 720-1050AD and 1310-1710AD could be speculated. |
| Key words: Pollen charcoal climatic changes human activities Lake Taibai |
