干旱区生态环境知识资源中心(Arid): Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US

Arid

DOI	10.1016/j.gloplacha.2021.103657
	Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US
	Liu, Ying; Wu, Chaoyang; Wang, Xiaoyue; Jassal, Rachhpal S.; Gonsamo, Alemu
通讯作者	Wu, CY (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China.
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2021
卷号	207
英文摘要	Vegetation phenology and peak growth are important indicators reflecting the response of ecosystems to global changes, yet the trends in peak vegetation growth and its drivers have not been well analyzed across different ecosystems. Here, we used time series of satellite-derived Normalized Difference Vegetation Index (NDVI) (1985-2015) to track recent changes in maximum vegetation growth (the maximum of NDVI (NDVImax) and the peak of growing season (POS)) in the continental US, and explored their responses to both climatic drivers (i.e. temperature, precipitation and cloud cover) and atmospheric changes (i.e. nitrogen (N) deposition and atmospheric CO2 concentration [CO2]). We found that precipitation had the greatest impact on NDVImax, accounting for 31.7% of vegetated area, followed by cloud cover (17.1%), temperature (16.4%), [CO2] (13.7%), and N deposition (10.4%), respectively. However, temperature showed the largest contribution to POS change in about 41.9% of vegetated areas, followed by precipitation (18.6%), cloud cover (15.0%), N deposition (6.7%) and [CO2] (5.9%), respectively. Interestingly, the effects of cloud cover highly depended on moisture regime, that is, more cloud cover was associated with a delayed POS and a decreased NDVImax in wetter regions, but could advance POS and increase NDVImax in dry areas. In addition, we also found that an earlier POS was accompanied by a higher NDVImax in most ecosystems, but with lower NDVImax in arid ecosystems. These results reveal the control of both climatic and atmospheric drivers on peak growth, and consequently are of great significance for understanding of the responses and feedbacks of vegetation to global change and improve models of terrestrial ecosystem carbon cycle.
英文关键词	Phenology Maximum vegetation growth Climate change Remote sensing NDVI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000709727100005
WOS关键词	GROSS PRIMARY PRODUCTIVITY ; PLANT PHENOLOGY ; SPRING PHENOLOGY ; INTERANNUAL VARIABILITY ; NORTHERN-HEMISPHERE ; CARBON UPTAKE ; ECOLOGICAL RESPONSES ; SEMIARID ECOSYSTEMS ; NITROGEN ADDITION ; SEASONAL CYCLE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368157
作者单位	[Liu, Ying; Wu, Chaoyang; Wang, Xiaoyue] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; [Liu, Ying; Wu, Chaoyang; Wang, Xiaoyue] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Jassal, Rachhpal S.] Univ British Columbia, 136-2357 Main Mall, Vancouver, BC V6T 1Z4, Canada; [Gonsamo, Alemu] McMaster Univ, Sch Earth Environm & Soc, Hamilton, ON, Canada
推荐引用方式 GB/T 7714	Liu, Ying,Wu, Chaoyang,Wang, Xiaoyue,et al. Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US[J]. 中国科学院地理科学与资源研究所,2021,207.
APA	Liu, Ying,Wu, Chaoyang,Wang, Xiaoyue,Jassal, Rachhpal S.,&Gonsamo, Alemu.(2021).Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US.GLOBAL AND PLANETARY CHANGE,207.
MLA	Liu, Ying,et al."Impacts of global change on peak vegetation growth and its timing in terrestrial ecosystems of the continental US".GLOBAL AND PLANETARY CHANGE 207(2021).