干旱区生态环境知识资源中心(Arid): Response of NDVI of Natural Vegetation to Climate Changes and Drought in China

Arid

DOI	10.3390/land10090966
	Response of NDVI of Natural Vegetation to Climate Changes and Drought in China
	Wang, Huaijun; Li, Zhi; Cao, Lei; Feng, Ru; Pan, Yingping
通讯作者	Wang, HJ (corresponding author), Huaiyin Normal Univ, Sch Urban & Environm Sci, Huaian 223300, Peoples R China. ; Wang, HJ (corresponding author), Key Res Base Philosophy & Social Sci Coll & Univ, Res Inst Huai River Ecoecon Belt, Huaian 223300, Peoples R China.
来源期刊	LAND
EISSN	2073-445X
出版年	2021
卷号	10 期号:9
英文摘要	Temporal and spatial changes in vegetation and their influencing factors are of great significance for the assessment of climate change and sustainable development of ecosystems. This study applied the Asymmetric Gaussians (AG) fitting method, Mann-Kendall test, and correlation analysis to the Global Inventory Monitoring and Modeling System (GIMMS) third-generation Normalized Difference Vegetation Index and gridded climate and drought data for 1982-2015. The temporal and spatial changes to NDVI for natural grassland and forest during the growing season were analyzed. Relationships among NDVI, climate change, and droughts were also analyzed to reveal the influence of vegetation change. The results showed that: (1) Land use/cover change (LUCC) in China was mainly represented by increases in agricultural land (Agri) and urban and rural land (Uril), and decreases in unutilized land (Bald), grassland, forest, and permanent glacier and snow (Snga). The increase in agricultural land was mainly distributed in the western northwest arid area (WNW) and northern North China (NNC), whereas regions with severe human activities such as southern South China (SNC), western South China (WSC), and eastern South China (ESC) showed significant decreases in agricultural land due to conversion to urban and rural land. (2) The start of the growing season (SOS) was advanced in WNW, SNC, WSC, and ESC, and the end of growing season (EOS) was delayed in WNW, NNC, and SNC. The growing season length (GSL) of natural vegetation in China has been extended by eight days over the last 34 years. However, the phenology of the Qinghai-Tibet Plateau (TP) was opposite to that of the other regions and the GSL showed an insignificant decreasing trend. (3) The NDVI increased significantly, particularly in the SNC, WSC, ESC, and the grassland of the WNW. Precipitation was found to mainly control the growth of vegetation in the arid and semi-arid regions of northwest China (WNW and ENW), and precipitation had a much greater impact on grassland than on forests. Temperature had an impact on the growth of vegetation throughout China, particularly in SNC, ESC, and WSC. (4) The Standardized Precipitation Evapotranspiration Index (SPEI) showed a downward trend, indicating an aridification trend in China, particularly in ENW, NNC, and WNW. Similar to precipitation, the main areas affected by drought were WNW and ENW and grassland was found to be more sensitive to drought than forest. The results of this study are of great significance for predicting the response of ecosystem productivity to climate change under future climate change scenarios.
英文关键词	natural vegetation NDVI growing season China
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000699551800001
WOS关键词	DELAYED SPRING PHENOLOGY ; TIBETAN PLATEAU ; GROWING-SEASON ; SPATIOTEMPORAL VARIATIONS ; TIME-SCALES ; COVER ; SENSITIVITY ; GROWTH ; GREENNESS ; VARIABLES
WOS类目	Environmental Studies
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 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364092
作者单位	[Wang, Huaijun; Cao, Lei; Feng, Ru] Huaiyin Normal Univ, Sch Urban & Environm Sci, Huaian 223300, Peoples R China; [Wang, Huaijun; Cao, Lei; Feng, Ru] Key Res Base Philosophy & Social Sci Coll & Univ, Res Inst Huai River Ecoecon Belt, Huaian 223300, Peoples R China; [Li, Zhi] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Pan, Yingping] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huaijun,Li, Zhi,Cao, Lei,et al. Response of NDVI of Natural Vegetation to Climate Changes and Drought in China[J]. 中国科学院新疆生态与地理研究所, 北京师范大学,2021,10(9).
APA	Wang, Huaijun,Li, Zhi,Cao, Lei,Feng, Ru,&Pan, Yingping.(2021).Response of NDVI of Natural Vegetation to Climate Changes and Drought in China.LAND,10(9).
MLA	Wang, Huaijun,et al."Response of NDVI of Natural Vegetation to Climate Changes and Drought in China".LAND 10.9(2021).