干旱区生态环境知识资源中心(Arid): The 20-Year Spatiotemporal Trends of Remotely Sensed Soil Moisture and Vegetation and Their Response to Climate Change over the Third Pole

Arid

DOI	10.1175/JHM-D-21-0077.1
	The 20-Year Spatiotemporal Trends of Remotely Sensed Soil Moisture and Vegetation and Their Response to Climate Change over the Third Pole
	Shi, Pengfei; Zeng, Jiangyuan; Chen, Kun-Shan; Ma, Hongliang; Bi, Haiyun; Cui, Chenyang
通讯作者	Zeng, JY (corresponding author)，Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing, Peoples R China.
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2021
卷号	22 期号:11
英文摘要	The Tibetan Plateau (TP), known as the ``Third Pole,'' is a climate-sensitive and ecology-fragile region. In this study, the spatiotemporal trends of soil moisture (SM) and vegetation were analyzed using satellite-based ESA CCI SM and MODIS LAI data, respectively, in the growing season during the last 20 years (2000-19) over the TP covering diverse climate zones. The climatic drivers (precipitation and air temperature) of SM and LAI variations were fully investigated by using both ERA5 reanalysis and observation-based gridded data. The results reveal the TP is generally wetting and significantly greening in the last 20 years. The SM with significant increasing trend accounts for 21.80% (fraction of grid cells) of the TP, and is about twice of the SM with significant decreasing trend (10.19%), while more than half of the TP (58.21%) exhibits significant increasing trend of LAI. Though the responses of SM and LAI to climatic factors are spatially heterogeneous, precipitation is the dominant driver of SM variation with 48.36% (ERA5) and 32.51% (observation-based) precipitation data showing the strongest significant positive partial correlation with SM. Temperature rise largely explains the vegetation greening, though precipitation also plays an important role in vegetation growth in arid and semiarid zones. The combined trend of SM and LAI indicates the TP is mainly composed of wetting and greening areas, followed by drying and greening regions. The change rate ofSMis negative at low altitudes and becomes positive as altitude increases, while the LAI value and its change rate decrease as altitude increases.
英文关键词	Land surface Vegetation Soil moisture Remote sensing Satellite observations
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000755188200005
WOS关键词	TIBETAN PLATEAU ; SPRING PHENOLOGY ; DRIVING FACTORS ; LAND-SURFACE ; TEMPERATURE ; PRECIPITATION ; IMPACTS ; REGIONS ; ENERGY ; EARTH
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375859
作者单位	[Shi, Pengfei; Zeng, Jiangyuan; Chen, Kun-Shan; Cui, Chenyang] Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing, Peoples R China; [Shi, Pengfei] Univ Chinese Acad Sci, Beijing, Peoples R China; [Chen, Kun-Shan] Guilin Univ Technol, Coll Geomant & Geoinformat, Guilin, Peoples R China; [Ma, Hongliang] Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan, Peoples R China; [Bi, Haiyun] China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing, Peoples R China; [Cui, Chenyang] Suzhou Ind Pk Surveying Mapping & Geoinformat Co, Suzhou, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Shi, Pengfei,Zeng, Jiangyuan,Chen, Kun-Shan,et al. The 20-Year Spatiotemporal Trends of Remotely Sensed Soil Moisture and Vegetation and Their Response to Climate Change over the Third Pole[J],2021,22(11).
APA	Shi, Pengfei,Zeng, Jiangyuan,Chen, Kun-Shan,Ma, Hongliang,Bi, Haiyun,&Cui, Chenyang.(2021).The 20-Year Spatiotemporal Trends of Remotely Sensed Soil Moisture and Vegetation and Their Response to Climate Change over the Third Pole.JOURNAL OF HYDROMETEOROLOGY,22(11).
MLA	Shi, Pengfei,et al."The 20-Year Spatiotemporal Trends of Remotely Sensed Soil Moisture and Vegetation and Their Response to Climate Change over the Third Pole".JOURNAL OF HYDROMETEOROLOGY 22.11(2021).