Pollen-inferred Holocene vegetation and climate histories in Taro Co,southwestern Tibetan Plateau

作     者：Qingfeng Ma Liping Zhu Xinmiao L Yun Guo Jianting Ju Junbo Wang Yong Wang Lingyu Tang 

作者机构：Key Laboratory of Tibetan Environment Changes and Land Surface ProcessesInstitute of Tibetan Plateau ResearchChinese Academy of Sciences University of Chinese Academy of Sciences State Key Laboratory of Palaeobiology and StratigraphyNanjing Institute of Geology and PalaeontologyChinese Academy of Sciences 

出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)

年 卷 期：2014年第59卷第31期

页      面：4101-4114页

核心收录：

学科分类：070905[理学-第四纪地质学] 070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：supported by the Strategic Priority Program ofthe Chinese Academy of Sciences(XDB03030400 andXDA05120300) the Key Project for National S&T Basic Investigation of China(2012FY111400) the Key Project of the NationalNatural Science Foundation of China(41190082) the NationalNatural Science Foundation of China(41171162) 

主　　题：气候变化 中全新世 青藏高原 西南部 花粉 芋头 植被 BP公司 

摘      要：A 310-cm-long sediment core,covering the last10,200 years,was collected from Taro Co on the southwestern Tibetan Plateau and analyzed for pollen,grain size and total inorganic carbon content.The pollen data showed that vegetation changed from alpine steppe to alpine meadow during 10,200–8,900 cal a BP,to alpine steppe dominated by Artemisia during 8,900–7,400 cal a BP,to alpine meadow during 7,400–3,300 cal a BP and to alpine steppe after 3,300 cal a BP.Correspondingly,the pollen,grain size and total inorganic carbon content results revealed climatic change in this area over four stages.The initial stage was from 10,200 to 8,900 cal a BP,during which the climate changed from cold-dry to warm-humid.The second stage(8,900–7,400 cal a BP)was characterized by a warm and dry climate.However,at approximately7,400 cal a BP,the climate began to become cold and humid,which continued until 3,300 cal a BP.The last stage,from 3,300 cal a BP to present,was characterized as cold and increasingly arid.Climatic events of the early and mid-late Holocene showed that the area was significantly affected by the westerlies.However,the mid-Holocene climate in Taro Co was controlled by the Indian monsoon.The mid-late Holocene depositional environment record of Taro Co was very important to further elaborate the degree of influence by the westerlies or Indian monsoon.