气候变化领域集成服务门户(CCPortal): Drought-induced reduction in global terrestrial net primary production from 2000 through 2009

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DOI	10.1126/science.1192666
	Drought-induced reduction in global terrestrial net primary production from 2000 through 2009
	Zhao M.; Running S.W.
发表日期	2010
ISSN	0036-8075
起始页码	940
结束页码	943
卷号	329 期号:5994
英文摘要	Terrestrial net primary production (NPP) quantifies the amount of atmospheric carbon fixed by plants and accumulated as biomass. Previous studies have shown that climate constraints were relaxing with increasing temperature and solar radiation, allowing an upward trend in NPP from 1982 through 1999. The past decade (2000 to 2009) has been the warmest since instrumental measurements began, which could imply continued increases in NPP; however, our estimates suggest a reduction in the global NPP of 0.55 petagrams of carbon. Large-scale droughts have reduced regional NPP, and a drying trend in the Southern Hemisphere has decreased NPP in that area, counteracting the increased NPP over the Northern Hemisphere. A continued decline in NPP would not only weaken the terrestrial carbon sink, but it would also intensify future competition between food demand and proposed biofuel production.
英文关键词	biofuel; carbon; biofuel; carbon sink; drought stress; future prospect; net primary production; Northern Hemisphere; phytomass; solar radiation; Southern Hemisphere; spatiotemporal analysis; temperature effect; terrestrial ecosystem; article; atmosphere; biofuel production; biomass; carbon sequestration; climate; drought; greenhouse effect; growth rate; plant growth; priority journal; rain forest; solar radiation; temperature; Atmosphere; Biomass; Carbon; Droughts; Ecosystem; Plants
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246166
作者单位	Numerical Terradynamic Simulation Group, Department of Ecosystem and Conservation Sciences, University of Montana, Missoula, MT 59812, United States
推荐引用方式 GB/T 7714	Zhao M.,Running S.W.. Drought-induced reduction in global terrestrial net primary production from 2000 through 2009[J],2010,329(5994).
APA	Zhao M.,&Running S.W..(2010).Drought-induced reduction in global terrestrial net primary production from 2000 through 2009.Science,329(5994).
MLA	Zhao M.,et al."Drought-induced reduction in global terrestrial net primary production from 2000 through 2009".Science 329.5994(2010).