气候变化领域集成服务门户(CCPortal): Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity

CCPortal

DOI	10.1038/ncomms6018
	Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity
	Piao, Shilong; Nan, Huijuan; Huntingford, Chris; Ciais, Philippe; Friedlingstein, Pierre; Sitch, Stephen; Peng, Shushi; Ahlstrom, Anders; Canadell, Josep G.; Cong, Nan; Levis, Sam; Levy, Peter E.; Liu, Lingli; Lomas, Mark R.; Mao, Jiafu; Myneni, Ranga B.; Peylin, Philippe; Poulter, Ben; Shi, Xiaoying; Yin, Guodong; Viovy, Nicolas; Wang, Tao; Wang, Xuhui; Zaehle, Soenke; Zeng, Ning; Zeng, Zhenzhong; Chen, Anping
通讯作者	Piao, SL (通讯作者)
发表日期	2014
ISSN	2041-1723
卷号	5
英文摘要	Satellite-derived Normalized Difference Vegetation Index (NDVI), a proxy of vegetation productivity, is known to be correlated with temperature in northern ecosystems. This relationship, however, may change over time following alternations in other environmental factors. Here we show that above 30 degrees N, the strength of the relationship between the interannual variability of growing season NDVI and temperature (partial correlation coefficient RNDV-GT) declined substantially between 1982 and 2011. This decrease in RNDVI-GT is mainly observed in temperate and arctic ecosystems, and is also partly reproduced by process-based ecosystem model results. In the temperate ecosystem, the decrease in RNDVI-GT coincides with an increase in drought. In the arctic ecosystem, it may be related to a nonlinear response of photosynthesis to temperature, increase of hot extreme days and shrub expansion over grass-dominated tundra. Our results caution the use of results from interannual time scales to constrain the decadal response of plants to ongoing warming.
关键词	NET PRIMARY PRODUCTION CARBON-DIOXIDE CLIMATE GROWTH CO2 ACCLIMATION DROUGHT INDEX
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000343935000001
来源期刊	NATURE COMMUNICATIONS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258415
推荐引用方式 GB/T 7714	Piao, Shilong,Nan, Huijuan,Huntingford, Chris,et al. Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity[J]. 中国科学院青藏高原研究所,2014,5.
APA	Piao, Shilong.,Nan, Huijuan.,Huntingford, Chris.,Ciais, Philippe.,Friedlingstein, Pierre.,...&Chen, Anping.(2014).Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity.NATURE COMMUNICATIONS,5.
MLA	Piao, Shilong,et al."Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity".NATURE COMMUNICATIONS 5(2014).