利用青藏高原东北缘的泥炭沉积记录,重建了该地区全新世冬、夏季风快速波动历史,清晰地识别出9次可与北大西洋浮冰碎屑事件及低纬海面降温事件相对比的气候干冷事件。总有机碳含量频谱分析揭示的1 428、512、2552、17 a气候准周期,表明中纬度地区百年至千年尺度气候韵律的存在,全新世气候快速变化具有全球性。 Based on the peat sedimentary record in the northeastern margin of the Qinghai-Tibet Plateau, the history of the rapid fluctuation of the Holocene winter monsoon and the monsoon monsoon in the area has been rebuilt. Nine clear and dry climate records can be identified, which can be compared with the North Atlantic ice pack event and the low-latitude sea surface temperature drop event event. The 1 428, 512, 2552, 17 a climatic quasi-cycles revealed by the spectral analysis of TOC indicate the existence of climatic rhythms of centennial to millennial scale in mid-latitudes, and the rapid global climate changes during the Holocene.