| Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau |
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| 引用本文： | Tang Lingyu,An Chengbang. Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau[J]. 自然科学进展(英文版), 2007, 17(12): 1445-1456 |
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| 作者姓名： | Tang Lingyu An Chengbang |
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| 作者单位： | 1. Nanjing Institute of Geology and Paleontology，Chinese Academy of Sciences，Nanjing 210008，China; 2. Key Laboratory of Western China’s Environment Systems，MOE，Lanzhou University，Lanzhou 730000，China |
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| 基金项目： | 中国科学院知识创新工程项目;国家自然科学基金 |
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| 摘 要： | Pollen records with an average time resolution of 20-200 years from Holocene loess sections at Dingxi, Qin'an, and other localities of Gansu Province reveal a detailed history of vegetation and climate changes in the western Loess Plateau. For most time of the Holocene, the landscape was dominated by grasslands or forest steppes. However, during the middle Holocene (7.5-5.8 ka BP), relatively dense forests developed, and the endemic vegetation flourished, suggesting a much warmer and more humid climate condition than the present. Superimposed upon this general pattern are several dry intervals marked by the episodic expansion of grasslands or forest steppe. Xeric vegetation expanded after 3.8 ka BP, indicating a trend towards dry conditions.
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Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau |
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| Tang Lingyu,An Chengbang. Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau[J]. Progress in Natural Science, 2007, 17(12): 1445-1456 |
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| Authors: | Tang Lingyu An Chengbang |
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| Abstract: | Pollen records with an average time resolution of 20200 years from Holocene loess sections at Dingxi,Qin'an,and other localities of Gansu Province reveal a detailed history of vegetation and climate changes in the western Loess Plateau.For most time of the Holocene,the landscape was dominated by grasslands or forest steppes.However,during the middle Holocene(7.5-5.8 ka BP),relatively dense forests developed,and the endemic vegetation flourished,suggesting a much warmer and more humid climate condition than the present.Superimposed upon this general pattern are several dry intervals marked by the episodic expansion of grasslands or forest steppe.Xeric vegetation expanded after 3.8 ka BP,indicating a trend towards dry conditions. |
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| Keywords: | pollen records glasslands coniferous forests Holocene Loess Plateau. |
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