干旱区生态环境知识资源中心(Arid): Climate Change Affected Vegetation Dynamics in the Northern Xinjiang of China: Evaluation by SPEI and NDVI

Arid

DOI	10.3390/land9030090
	Climate Change Affected Vegetation Dynamics in the Northern Xinjiang of China: Evaluation by SPEI and NDVI
	Luo, Nana 1,2; Mao, Dehua 1; Wen, Bolong 1; Liu, Xingtu 1
通讯作者	Liu, Xingtu
来源期刊	LAND
EISSN	2073-445X
出版年	2020
卷号	9 期号:3
英文摘要	Drought and vegetation dynamics in the northern Xinjiang Uygur Autonomous Region of China (NXC), the centre of Asia with arid climate, were assessed using the standardized precipitation evapotranspiration index (SPEI) and the normalized difference vegetation index (NDVI). Analyses were performed through the use of Sen's method and Spearman's correlation to investigate variations in the NDVI and the impacts of drought on vegetation from 1998 to 2015. The severity of droughts in the NXC was assessed by the SPEI, which was revealed to increase over the last 60 years at a rate of 0.017 per decade. This indicates that an alleviating tendency of drought intensity occurred in the NXC. Specifically, the spatial pattern of drought intensity increased gradually from the north-western to south-eastern regions. The average yearly NDVI was 0.28 and increased slightly by 0.001 yr(-1) (r = 0.94, p = 3.64) between 1998 and 2015. Additionally, the NDVI showed an obviously spatial heterogeneity, with greater values in the west and small values in the east. Significantly, positive correlations between SPEI and NDVI were observed, while drought exerted a five-year lag effect on vegetation.
英文关键词	climate change drought SPEI NDVI arid zone the northern Xinjiang Uyghur Autonomous Region of China (NXC)
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000523663000017
WOS关键词	LEAF-AREA INDEX ; DROUGHT INDEXES ; TIME-SCALES ; RIVER-BASIN ; RESPONSES ; VARIABILITY ; ASSESSMENTS ; ECOSYSTEMS ; PATTERNS ; REGION
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315122
作者单位	1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Luo, Nana,Mao, Dehua,Wen, Bolong,et al. Climate Change Affected Vegetation Dynamics in the Northern Xinjiang of China: Evaluation by SPEI and NDVI[J],2020,9(3).
APA	Luo, Nana,Mao, Dehua,Wen, Bolong,&Liu, Xingtu.(2020).Climate Change Affected Vegetation Dynamics in the Northern Xinjiang of China: Evaluation by SPEI and NDVI.LAND,9(3).
MLA	Luo, Nana,et al."Climate Change Affected Vegetation Dynamics in the Northern Xinjiang of China: Evaluation by SPEI and NDVI".LAND 9.3(2020).