Late Holocene climate change and anthropogenic activities in north Xinjiang: Evidence from a peatland archive, the Caotanhu wetland

doi:10.1177/0959683614558646

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	Late Holocene climate change and anthropogenic activities in north Xinjiang: Evidence from a peatland archive, the Caotanhu wetland
	Zhang, Hui 3,7; Zhang, Yun ; Kong, Zhaochen ; Yang, Zhenjing 2,6; Li, Yumei 2,5,6; Tarasov, Pavel E.
刊名	HOLOCENE
	2015
卷号	25 期号:2 页码:323-332
关键词	Caotanhu wetland climate change human activity late Holocene north Xinjiang pollen
ISSN号	0959-6836
DOI	10.1177/0959683614558646
文献子类	Article
英文摘要	Climate change and human activities interact to affect the vegetation landscape. We examined the interaction of these drivers using multiproxy records, including data on pollen, charcoal, phytoliths, total nitrogen, total organic carbon, and loss-on-ignition, from a 268-cm sediment profile in Xinjiang, China. By combining these data with information gained from 214 samples of surface pollen assemblages in north Xinjiang, we were able to reconstruct the late Holocene climate using a weighted averaging partial least squares regression model. Our results suggested that the typical desert vegetation of the region changed to Artemisia desert at 2400 cal. a BP, and returned to desert after 900 cal. a BP. A warm-dry and cold-humid climate pattern existed during the past 4000years. The climate was characterized by obvious fluctuation prior to 2400 cal. a BP, after which it became wetter and colder with little fluctuation. The temperature maximum in our reconstruction occurred around 700 cal. a BP. The macrocharcoal particles reached their highest levels at c. 3500 cal. a BP, and again at 700 cal. a BP, suggesting increases in human activities at these times. An increased amount of anthropogenic plant pollen also appeared in sediment over the past 50years. Large numbers of Thelypteris spores and Phragmites phytoliths in the surface pollen samples from modern desert vegetation also reflect recent human activities. Therefore, our data provide evidence that both climate and human activities are important drivers of changes in regional vegetation.
学科主题	Geography, Physical ; Geosciences, Multidisciplinary
电子版国际标准刊号	1477-0911
出版地	LONDON
WOS关键词	LAKE-SEDIMENTS ; VEGETATION CHANGES ; CALIBRATION SET ; TIBETAN PLATEAU ; POLLEN RECORD ; CHINA ; PALEOCLIMATE ; ECOSYSTEM ; RECONSTRUCTION ; SWITZERLAND
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	SAGE PUBLICATIONS LTD
WOS记录号	WOS:000346780500007
资助机构	National Natural Science Foundation of China (NSFC grant) [41272386, 40601104, 41230101, 40972212] ; Chinese National Basic Research Program [2014CB954201] ; State Key Laboratory of Vegetation and Environmental Change of the Institute of Botany ; Chinese Academy of Sciences [011qnrc07] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Federal Ministry of Research and Education (BMBF Grant) [01UO1310] ; DFG Heisenberg Program [TA 540/5]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25763]
专题	植被与环境变化国家重点实验室
作者单位	1.Tarasov, Pavel E.] Free Univ Berlin, Inst Geol Sci, Berlin, Germany 2.Chinese Acad Geol Sci, Inst Hydrogeol, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Shijiazhuang Univ Econ, Shijiazhuang, Peoples R China 5.Chinese Acad Geol Sci, Inst Environm Geol, Beijing, Peoples R China 6.Univ Helsinki, FIN-00014 Helsinki, Finland 7.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hui,Zhang, Yun,Kong, Zhaochen,et al. Late Holocene climate change and anthropogenic activities in north Xinjiang: Evidence from a peatland archive, the Caotanhu wetland[J]. HOLOCENE,2015,25(2):323-332.
APA	Zhang, Hui,Zhang, Yun,Kong, Zhaochen,Yang, Zhenjing,Li, Yumei,&Tarasov, Pavel E..(2015).Late Holocene climate change and anthropogenic activities in north Xinjiang: Evidence from a peatland archive, the Caotanhu wetland.HOLOCENE,25(2),323-332.
MLA	Zhang, Hui,et al."Late Holocene climate change and anthropogenic activities in north Xinjiang: Evidence from a peatland archive, the Caotanhu wetland".HOLOCENE 25.2(2015):323-332.