Changes in satellite-derived vegetation growth trend in temperate and   boreal Eurasia from 1982 to 2006

doi:10.1111/j.1365-2486.2011.02419.x

CORC > 北京大学 > 城市与环境学院

	Changes in satellite-derived vegetation growth trend in temperate and boreal Eurasia from 1982 to 2006
	Piao, Shilong ; Wang, Xuhui ; Ciais, Philippe ; Zhu, Biao ; Wang, Tao ; Liu, Jie
刊名	全球变化生物学
	2011
关键词	climate change Eurasia NDVI vegetation browning vegetation greening NET PRIMARY PRODUCTION ECOSYSTEM PRODUCTIVITY ECOLOGICAL THRESHOLDS CARBON-DIOXIDE CO2 EMISSIONS FOREST CHINA REDUCTION DROUGHT SEASON
DOI	10.1111/j.1365-2486.2011.02419.x
英文摘要	Monitoring changes in vegetation growth has been the subject of considerable research during the past several decades, because of the important role of vegetation in regulating the terrestrial carbon cycle and the climate system. In this study, we combined datasets of satellite-derived Normalized Difference Vegetation Index (NDVI) and climatic factors to analyze spatio-temporal patterns of changes in vegetation growth and their linkage with changes in temperature and precipitation in temperate and boreal regions of Eurasia (>23.5 degrees N) from 1982 to 2006. At the continental scale, although a statistically significant positive trend of average growing season NDVI is observed (0.5 x 10(-3) year (1), P = 0.03) during the entire study period, there are two distinct periods with opposite trends in growing season NDVI. Growing season NDVI has first significantly increased from 1982 to 1997 (1.8 x 10(-3) year(-1), P < 0.001), and then decreased from 1997 to 2006 (-1.3 x 10(-3) year(-1), P = 0.055). This reversal in the growing season NDVI trends over Eurasia are largely contributed by spring and summer NDVI changes. Both spring and summer NDVI significantly increased from 1982 to 1997 (2.1 x 10(-3) year(-1), P = 0.01; 1.6 x 10(-3) year(-1) P < 0.001, respectively), but then decreased from 1997 to 2006, particularly summer NDVI which may be related to the remarkable decrease in summer precipitation ( 2.7mm yr(-1), P = 0.009). Further spatial analyses supports the idea that the vegetation greening trend in spring and summer that occurred during the earlier study period 1982-1997 was either stalled or reversed during the following study period 1997-2006. But the turning point of vegetation NDVI is found to vary across different regions.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000294571700018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Biodiversity Conservation; Ecology; Environmental Sciences; SCI(E); 140; ARTICLE; 10; 3228-3239; 17
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/161067]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Piao, Shilong,Wang, Xuhui,Ciais, Philippe,et al. Changes in satellite-derived vegetation growth trend in temperate and boreal Eurasia from 1982 to 2006[J]. 全球变化生物学,2011.
APA	Piao, Shilong,Wang, Xuhui,Ciais, Philippe,Zhu, Biao,Wang, Tao,&Liu, Jie.(2011).Changes in satellite-derived vegetation growth trend in temperate and boreal Eurasia from 1982 to 2006.全球变化生物学.
MLA	Piao, Shilong,et al."Changes in satellite-derived vegetation growth trend in temperate and boreal Eurasia from 1982 to 2006".全球变化生物学 (2011).