气候变化领域集成服务门户(CCPortal): Soil warming and carbon-cycle feedbacks to the climate system

CCPortal

DOI	10.1126/science.1074153
	Soil warming and carbon-cycle feedbacks to the climate system
	Melillo J.M.; Steudler P.A.; Aber J.D.; Newkirk K.; Lux H.; Bowles F.P.; Catricala C.; Magill A.; Ahrens T.; Morrisseau S.
发表日期	2002
ISSN	0036-8075
起始页码	2173
结束页码	2176
卷号	298 期号:5601
英文摘要	In a decade-long soil warming experiment in a mid-latitude hardwood forest, we documented changes in soil carbon and nitrogen cycling in order to investigate the consequences of these changes for the climate system. Here we show that whereas soil warming accelerates soil organic matter decay and carbon dioxide fluxes to the atmosphere, this response is small and short-lived for a mid-latitude forest, because of the limited size of the labile soil carbon pool. We also show that warming increases the availability of mineral nitrogen to plants. Because plant growth in many mid-latitude forests is nitrogen-limited, warming has the potential to indirectly stimulate enough carbon storage in plants to at least compensate for the carbon losses from soils. Our results challenge assumptions made in some climate models that lead to projections of large long-term releases of soil carbon in response to warming of forest ecosystems.
英文关键词	Carbon dioxide; Climate change; Ecosystems; Forestry; Hardwoods; Nitrogen; Soil warming; Soils; carbon; nitrogen; soil organic matter; carbon cycle; climate modeling; nitrogen cycle; soil temperature; article; carbon cycle; climate; environmental temperature; feedback system; forest; nitrogen cycle; plant growth; priority journal; soil change; soil temperature; warming; Biodegradation, Environmental; Carbon; Carbon Dioxide; Climate; Ecosystem; Fertilizers; Massachusetts; Nitrogen; Plants; Soil; Temperature; Trees
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/244738
作者单位	Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA 02543, United States; Complex Systems Research Center, University of New Hampshire, Durham, NH 03824, United States; Research Designs, Post Office Box 26, Woods Hole, MA 02543, United States
推荐引用方式 GB/T 7714	Melillo J.M.,Steudler P.A.,Aber J.D.,et al. Soil warming and carbon-cycle feedbacks to the climate system[J],2002,298(5601).
APA	Melillo J.M..,Steudler P.A..,Aber J.D..,Newkirk K..,Lux H..,...&Morrisseau S..(2002).Soil warming and carbon-cycle feedbacks to the climate system.Science,298(5601).
MLA	Melillo J.M.,et al."Soil warming and carbon-cycle feedbacks to the climate system".Science 298.5601(2002).