干旱区生态环境知识资源中心(Arid): Holocene rates of vegetation composition change differ between high and middle-to-low elevations in the Central Arid Zone of Asia

Arid

DOI	10.1016/j.palaeo.2023.111526
	Holocene rates of vegetation composition change differ between high and middle-to-low elevations in the Central Arid Zone of Asia
	Zhang, Dongliang; Blyakharchuk, Tatiana A.; Bezrukova, Elena V.; Huang, Xiaozhong; An, Chengbang; Su, Chenjie; Li, Yuejing
通讯作者	Zhang, DL
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2023
卷号	618
英文摘要	In this study, we calculate the Holocene rates of vegetation composition changes (RoCs) for different elevations in the Central Arid Zone of Asia based on 46 pollen records using Detrended Correspondence Analysis (DCA). In addition, we investigate the relative importance of six drivers (temperature, precipitation, CO2 concentration, fire, pasture and cropland activities) using Structural Equation Modeling (SEM). Results show that RoCs at high elevations (>2000 m a.s.l.) were generally greater in the early Holocene and then fell to their lowest values at-6000 cal. yr BP. RoCs then gradually increased between-6000 and-3000 cal. yr BP and over the past-3000 years, RoCs abruptly decreased before returning to an upward trend. We infer that the changeable characters of RoCs at high elevations are mainly modulated by fire activities. RoCs at middle-to-low elevations (<2000 m a.s. l.) experienced a steady acceleration through the Holocene, which might be attributed to climatic cooling and wetting and intensification of fire activities. Our findings shed light on the Holocene response of vegetation to climate change, CO2 concentration, fire and human activities (grazing and cropland) in the Central Arid Zone of Asia.
英文关键词	Holocene Pollen Rate of vegetation composition change Central Arid Zone of Asia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001030257500001
WOS关键词	SOUTHERN ALTAI MOUNTAINS ; HIGH-RESOLUTION RECORD ; CLIMATE-CHANGE ; ATMOSPHERIC CIRCULATION ; PALYNOLOGICAL RECORD ; NORTHERN XINJIANG ; SURROUNDING AREAS ; DIATOM RECORDS ; HUMAN IMPACT ; POLLEN
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397958
推荐引用方式 GB/T 7714	Zhang, Dongliang,Blyakharchuk, Tatiana A.,Bezrukova, Elena V.,et al. Holocene rates of vegetation composition change differ between high and middle-to-low elevations in the Central Arid Zone of Asia[J],2023,618.
APA	Zhang, Dongliang.,Blyakharchuk, Tatiana A..,Bezrukova, Elena V..,Huang, Xiaozhong.,An, Chengbang.,...&Li, Yuejing.(2023).Holocene rates of vegetation composition change differ between high and middle-to-low elevations in the Central Arid Zone of Asia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,618.
MLA	Zhang, Dongliang,et al."Holocene rates of vegetation composition change differ between high and middle-to-low elevations in the Central Arid Zone of Asia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 618(2023).