Pollen-inferred vegetation and environmental changes in the central Tibetan Plateau since 8200 yr BP
Pollen-inferred vegetation and environmental changes in the central Tibetan Plateau since 8200 yr BP
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距今8200年以来青藏高原中部的花粉推断植被和环境变化
DOI：
10.1007/s11430-009-0080-5
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发表时间：
2009-08
期刊：
影响因子：
--
通讯作者：
Lingyu Tang
中科院分区：
文献类型：
--
作者：
Shen CM;Liu Hui;Bao Yang;Li Chunhai;Peng Jinlan;Kam-biu Liu;Lingyu Tang
青藏高原中部高寒草原-草甸交错带对气候变化敏感。本文利用该地区三个湖泊的孢粉记录，重建了该地区8200年以来的植被和气候演变。YR BP。利用多种生物气候指标和花粉记录的传递函数，定量重建了温度和降水的历史。结果表明，8200-6500年间以草原/草甸为主。年BP，特别是8200-7200卡。Yr BP，表明青藏高原中部受强季风控制。草原在6000-4900、4400-3900和2800-2400年间占主导地位。YR BP。在4900-4400年间，草原逐渐减少，草甸逐渐扩大。YR BP。5800-4900、4400-3900和2800年发生了三个世纪尺度的干旱事件。分别为Yr BP。区域气候第一次转变到现在的水平是在6500卡。一年前在中部高原。从3000卡开始。年前，气温和降水量逐渐下降到现在的水平。然而，寒冷的气候在700-300卡之间。Yr BP可能对应于小冰河时代。
The ecotone between alpine steppe and meadow in the central Tibetan Plateau is sensitive to climate changes. Here we used the pollen records from three lakes in this region to reconstruct the evolution of local vegetation and climate since 8200 cal. yr BP. The history of temperature and precipitation was reconstructed quantitatively with multi-bioclimatic indexes and a transfer function from pollen records. Results show that the steppe/meadow dominated during the period of 8200–6500 cal. yr BP, especially 8200–7200 cal. yr BP, indicating the central Tibetan Plateau was controlled by strong monsoon. The steppe dominated during the periods of 6000–4900, 4400–3900, and 2800–2400 cal. yr BP. The steppe decreased gradually and the meadow expanded during the period of 4900–4400 cal. yr BP. Three century-scale drought events occurred during 5800–4900, 4400–3900 and 2800 cal. yr BP, respectively. The first time when the regional climate shifted to the present level was at 6500 cal. yr BP in the central Plateau. Since 3000 cal. yr BP, the temperature and precipitation have decreased gradually to the present level. However, the cold climate between 700–300 cal. yr BP likely corresponds to the Little Ice Age.
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影响因子：
1.6
作者：
Becker, Alfred;Koerner, Christian;Tappeiner, Ulrike
通讯作者：
Tappeiner, Ulrike
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影响因子：
1.9
作者：
Ito, Emi;Zhao, Yan;Chen, Fahu;Zhao, Cheng;Yu, Zicheng
通讯作者：
Yu, Zicheng
影响因子：
2.3
作者：
E. Van Campo;F. Gasse
通讯作者：
E. Van Campo;F. Gasse
影响因子：
8.3
作者：
Stuiver, M;Reimer, PJ;Spurk, M
通讯作者：
Spurk, M
影响因子：
3.9
作者：
Guo, ZT;Petit-Maire, N;Kröpelin, S
通讯作者：
Kröpelin, S