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首页> 外文期刊>Journal of Asian earth sciences >Vegetation and climate change in the Hetao Basin (Northern China) during the last interglacial-glacial cycle
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Vegetation and climate change in the Hetao Basin (Northern China) during the last interglacial-glacial cycle

机译：最后一个冰河-冰河周期的河套盆地（中国北方）的植被与气候变化

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摘要

The Hetao region of China is noted for research on ancient humans. However, a lack of detailed records of vegetation and climate changes in this region has hindered understanding of human dispersal. We reconstructed the vegetation and climate changes during the last Pleistocene using pollen records from a continuous lacustrine sediment section in the Hetao Basin. The vegetation type was forest-steppe dominated by Pinus and Artemisia during the last interglacial periods. During the last glacial periods, the vegetation shifted to a Chenopodiaceae - Artemisia desert steppe with an Artemesia steppe between 44 and 34 ka BP. The steppe ecosystem, in the Hetao region during milder periods of the last glacial, was suitable for herbivores that may have provided sufficient prey for ancient humans. The vegetation changes indicate an altered climate characterized by colder and drier conditions that were probably influenced by global cooling and a decline of northern insolation variations from the last interglacial to glacial periods.
机译：中国的河套地区以古代人类研究而著称。然而，该地区缺乏详细的植被和气候变化记录，阻碍了人们对人类传播的理解。我们利用河套盆地连续湖相沉积物剖面的花粉记录重建了最后一次更新世期间的植被和气候变化。在最后一个冰期之间，植被类型是由松属和蒿属为主的森林草原。在最后的冰川期，植被转移到藜科-蒿属荒漠草原，其蒿甲草草原介于44和34 ka BP之间。在河套地区末次冰河较温和的时期，草原生态系统适合食草动物，这些食草动物可能为古代人类提供了充足的猎物。植被变化表明气候变化，气候特征是寒冷和干燥，这可能受全球降温的影响以及从最后一个冰期到冰川期北部日射量变化的减少。

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