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Vegetation and environmental changes in western Chinese Loess Plateau since 13.0 ka BP |
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| Authors: | SUN Aizhi FENG Zhaodong MA Yuzhen |
| Institution: | 1. School of Geography Science, Southwest University, Chongqing 400715, China; 2. MOE Key Laboratory of Western China’s Environmental Systems, College of Earth &|Environment Sciences, Lanzhou University, Lanzhou 730000, China; 3. Department of Geology, Baylor University, Waco, TX76795, USA; 4. College of Resources Science and Technology Research, Beijing Normal University, Beijing 100875, China |
| Abstract: | Pollen records from the Chinese Loess Plateau revealed a detailed history of vegetation variation and associated climate changes during the last 13.0 ka BP. Before 12.1 ka BP, steppe or desert-steppe vegetation dominated landscape then was replaced by a coniferous forest under a generally wet climate (12.1–11.0 ka BP). The vegetation was deteriorated into steppe landscape and further into a desert-steppe landscape between 11.0 and 9.8 ka BP. After a brief episode of a cool and wet climate (9.8–9.6 ka BP), a relatively mild and dry condition prevailed during the early Holocene (9.6–7.6 ka BP). The most favourable climate of warm and humid period occurred during mid-Holocene (7.6–~4.0 ka BP) marked by forest-steppe landscape and vegetation alternatively changed between steppe and desert- steppe from ~4.0 to ~1.0 ka BP. |
| Keywords: | Chinese Loess Plateau arid and semi-arid region pollen assemblage climate change |
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