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冰川冻土  1998 

青藏高原东部末次冰期最盛期气候的花粉证据

, PP. 133-140

Keywords: 花粉,末次冰期最盛期,青藏高原

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Abstract:

青藏高原许多湖泊钻孔、泥炭剖面等所揭示的花粉记录为重建当时的古气候提供了可靠的证据。应用这些资料探讨青藏高原东部末次最大盛冰期植被和气候。大约25~15kaBP前后西藏东南部、川西若尔盖及青海柴达木和可可西里地区,气候寒冷干燥,年均气温比现今低6℃左右,植被以荒漠草原为主;在青海湖地区森林退缩演变为草原植被;甘肃临夏气候冷湿,年均温比现在低5~6℃,发育山地暗针叶林.

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