干旱区生态环境知识资源中心(Arid): Vegetation Index Reconstruction and Linkage with Drought for the Source Region of the Yangtze River Based on Tree-ring Data

Arid

DOI	10.1007/s11769-021-1217-5
	Vegetation Index Reconstruction and Linkage with Drought for the Source Region of the Yangtze River Based on Tree-ring Data
	Li, Jinjian; Wang, Shu; Qin, Ningsheng; Liu, Xisheng; Jin, Liya
通讯作者	Li, JJ (corresponding author), Chengdu Univ Informat Technol, Sch Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Peoples R China.
来源期刊	CHINESE GEOGRAPHICAL SCIENCE
ISSN	1002-0063
EISSN	1993-064X
出版年	2021
卷号	31 期号:4 页码:684-695
英文摘要	Variations in vegetation are closely related to climate change, but understanding of their characteristics and causes remains limited. As a typical semi-humid and semi-arid cold plateau region, it is important to understand the knowledge of long term Normalized Difference Vegetation Index (NDVI) variations and find the potential causes in the source region of the Yangtze River. Based on four tree-ring width chronologies, the regional mean NDVI for July and August spanning the period 1665-2013 was reconstructed using a regression model, and it explained 43.9% of the total variance during the period 1981-2013. In decadal, the reconstructed NDVI showed eight growth stages (1754-1764, 1766-1783, 1794-1811, 1828-1838, 1843-1855, 1862-1873, 1897-1909, and 1932-1945) and four degradation stages (1679-1698, 1726-1753, 1910-1923, and 1988-2000). And based on wavelet analysis, significant cycles of 2-3 yr and 3-8 yr were identified. In additional, there was a significant positive correlation between the NDVI and the Palmer Drought Severity Index (PDSI) during the past 349 yr, and they were mainly in phase. However, according to the results of correlation analysis between different grades of drought/wet and NDVI, there was significant asymmetry in extreme drought years and extreme wet years. In extreme drought years, NDVI was positively correlated with PDSI, and in extreme wet years they were negatively correlated.
英文关键词	Normalized Difference Vegetation Index (NDVI) reconstruction dendrochronology tree ring Source Region of the Yangtze River
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000675430100008
WOS关键词	INTERANNUAL VARIATION ; CLIMATIC VARIABLES ; SATELLITE DATA ; FOREST GROWTH ; NDVI ; TEMPERATURE ; CHINA ; PRECIPITATION ; TRENDS ; MODIS
WOS类目	Environmental Sciences
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/2XILL650/367957
作者单位	[Li, Jinjian; Wang, Shu; Jin, Liya] Chengdu Univ Informat Technol, Sch Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Peoples R China; [Wang, Shu; Qin, Ningsheng] China Meteorol Adm, Inst Plateau Meteorol, Chengdu Heavy Rain & Drought Flood Disasters Plat, Key Lab Sichuan Prov, Chengdu 610072, Peoples R China; [Liu, Xisheng] Hydrol & Water Resources Bur Qinghai Prov, Xining 810000, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinjian,Wang, Shu,Qin, Ningsheng,et al. Vegetation Index Reconstruction and Linkage with Drought for the Source Region of the Yangtze River Based on Tree-ring Data[J],2021,31(4):684-695.
APA	Li, Jinjian,Wang, Shu,Qin, Ningsheng,Liu, Xisheng,&Jin, Liya.(2021).Vegetation Index Reconstruction and Linkage with Drought for the Source Region of the Yangtze River Based on Tree-ring Data.CHINESE GEOGRAPHICAL SCIENCE,31(4),684-695.
MLA	Li, Jinjian,et al."Vegetation Index Reconstruction and Linkage with Drought for the Source Region of the Yangtze River Based on Tree-ring Data".CHINESE GEOGRAPHICAL SCIENCE 31.4(2021):684-695.