干旱区生态环境知识资源中心(Arid): Impacts of climate change on vegetation phenology and net primary productivity in arid Central Asia

Arid

DOI	10.1016/j.scitotenv.2021.149055
	Impacts of climate change on vegetation phenology and net primary productivity in arid Central Asia
	Wu, Lizhou; Ma, Xiaofei; Dou, Xin; Zhu, Jianting; Zhao, Chengyi
通讯作者	Zhao, CY (corresponding author), Nanjing Univ Informat Sci & Technol, Sch Geog Sci, 219 Ningliu Rd, Nanjing 210044, Jiangsu, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	796
英文摘要	Vegetation is highly sensitive to climate changes in arid regions. The relationship between vegetation and climate changes can be effectively characterized by vegetation phenology. However, few studies have examined the vegetation phenology and productivity changes in arid Central Asia (ACA). The vegetation phenological information of ACA was extracted using MODIS NDVI (Normalized Difference Vegetation Index) data, and the dynamics of vegetation phenological changes under spatiotemporal variations were quantitatively assessed. Moreover, the impacts of climate change on vegetation phenology and net primary productivity were analyzed by combining meteorological data with that of MODIS NPP (Net Primary Productivity) during the same period. The results demonstrated that the start of the season (SOS) of vegetation in the study was concentrated from mid-February to mid-April, while the end of the season (EOS) was concentrated from early October to mid-December. The length of growing season (LOS) ranged from 6 to 10 months. The SOS of vegetation was gradually postponed at a rate of 0.16 dmiddotyear-1. The EOS advanced at a rate of 0.69 dmiddotyear-1. The LOS was gradually shortened at a rate of 0.89 dmiddotyear-1. For each per 1000 m increase in elevation, the SOS of vegetation was postponed by 12.40 d; the EOS advanced by 0.40 d, and the LOS was shortened by 11.70 d. For the impacts of climate changes on vegetation phenology and NPP, the SOS of vegetation phenology negatively correlated with temperature but positively correlated with precipitation and NPP. The EOS and LOS positively correlated with temperature but negatively with precipitation and NPP. Results indicated that the SOS was not moved ahead but was delayed, while the EOS advanced rather than being postponed under climate change. These results can offer new insights on the phenological response to climate change in arid regions and on non-systematic changes in phenology under global warming. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Vegetation phenology Climate change Net primary productivity Arid Central Asia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000698511000004
WOS关键词	LAND-SURFACE PHENOLOGY ; SPRING PHENOLOGY ; PLANT PHENOLOGY ; HIGH-LATITUDES ; TIME-SERIES ; TREE PHENOLOGY ; GRASSLAND ; RESPONSES ; CHINA ; NDVI
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所 ; 南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364584
作者单位	[Wu, Lizhou; Dou, Xin; Zhao, Chengyi] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, 219 Ningliu Rd, Nanjing 210044, Jiangsu, Peoples R China; [Ma, Xiaofei] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Zhu, Jianting] Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA; [Ma, Xiaofei] Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lizhou,Ma, Xiaofei,Dou, Xin,et al. Impacts of climate change on vegetation phenology and net primary productivity in arid Central Asia[J]. 中国科学院新疆生态与地理研究所, 南京信息工程大学,2021,796.
APA	Wu, Lizhou,Ma, Xiaofei,Dou, Xin,Zhu, Jianting,&Zhao, Chengyi.(2021).Impacts of climate change on vegetation phenology and net primary productivity in arid Central Asia.SCIENCE OF THE TOTAL ENVIRONMENT,796.
MLA	Wu, Lizhou,et al."Impacts of climate change on vegetation phenology and net primary productivity in arid Central Asia".SCIENCE OF THE TOTAL ENVIRONMENT 796(2021).