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DOI	10.1088/1748-9326/ab57c5
	Global divergent responses of primary productivity to water, energy, and co2
	Liu Z.; Chen L.; Smith N.G.; Yuan W.; Chen X.; Zhou G.; Alam S.A.; Lin K.; Zhao T.; Zhou P.; Chu C.; Ma H.; Liu J.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	The directionality of the response of gross primary productivity (GPP) to climate has been shown to vary across the globe. This effect has been hypothesized to be the result of the interaction between multiple bioclimatic factors, including environmental energy (i.e. temperature and radiation) and water availability. This is due to the tight coupling between water and carbon cycling in plants and the fact that temperature often drives plant water demand. Using GPP data extracted from 188 sites of FLUXNET2015 and observation-driven terrestrial biosphere models (TBMs), we disentangled the confounding effects of temperature, precipitation and carbon dioxide on GPP, and examined their long-term effects on productivity across the globe. Based on the FLUXNET2015 data, we observed a decline in the positive effect of temperature on GPP, while the positive effects of precipitation and CO2 were becoming stronger during 2000-2014. Using data derived from TBMs between 1980 and 2010 we found similar effects globally. The modeled data allowed us to investigate these effects more thoroughly over space and time. In arid regions, the modeled response to precipitation increased since 1950, approximately 30 years earlier than in humid regions. We further observed the negative effects of summer temperature on GPP in arid regions, suggesting greater aridity stress on productivity under global warming. Our results imply that aridity stress, triggered by rising temperatures, has reduced the positive influence of temperature on GPP, while increased precipitation and elevated CO2 may alleviate negative aridity impacts. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Climate warming; Gross primary productivity; Precipitation; Rising temperature; Water availability
语种	英语
scopus关键词	Arid regions; Carbon dioxide; Digital storage; Global warming; Photosynthesis; Phytoplankton; Precipitation (chemical); Climate warming; Effect of temperature; Effects of temperature; Gross primary productivity; Primary productivity; Rising temperatures; Terrestrial biosphere; Water availability; Temperature; bioclimatology; carbon cycle; environmental factor; net primary production; precipitation (climatology); spatiotemporal analysis; water availability
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154279
作者单位	Center for Water Resources and Environment, School of Civil Engineering, Sun Yat-Sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China; Department of Biological Sciences, Texas Tech University, Lubbock, 79409, United States; School of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou, 510275, China; Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, PO Box 64, Helsinki, FI-00014, Finland; Guangzhou Institute of Geography, Guangzhou, 510070, China; Department of Ecology, State Key Laboratory of Biocontrol and School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China; N...
推荐引用方式 GB/T 7714	Liu Z.,Chen L.,Smith N.G.,et al. Global divergent responses of primary productivity to water, energy, and co2[J],2019,14(12).
APA	Liu Z..,Chen L..,Smith N.G..,Yuan W..,Chen X..,...&Liu J..(2019).Global divergent responses of primary productivity to water, energy, and co2.Environmental Research Letters,14(12).
MLA	Liu Z.,et al."Global divergent responses of primary productivity to water, energy, and co2".Environmental Research Letters 14.12(2019).