气候变化领域集成服务门户(CCPortal): Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses

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DOI	10.1126/science.1091165
	Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses
	Saleska S.R.; Miller S.D.; Matross D.M.; Goulden M.L.; Wofsy S.C.; Da Rocha H.R.; De Camargo P.B.; Crill P.; Daube B.C.; De Freitas H.C.; Hutyra L.; Keller M.; Kirchhoff V.; Menton M.; Munger J.W.; Pyle E.H.; Rice A.H.; Silva H.
发表日期	2003
ISSN	0036-8075
起始页码	1554
结束页码	1557
卷号	302 期号:5650
英文摘要	The net ecosystem exchange of carbon dioxide was measured by eddy covariance methods for 3 years in two old-growth forest sites near Santarém, Brazil. Carbon was lost in the wet season and gained in the dry season, which was opposite to the seasonal cycles of both tree growth and model predictions. The 3-year average carbon loss was 1.3 (confidence interval: 0.0 to 2.0) megagrams of carbon per hectare per year. Biometric observations confirmed the net loss but imply that it is a transient effect of recent disturbance superimposed on long-term balance. Given that episodic disturbances are characteristic of old-growth forests, it is Likely that carbon sequestration is lower than has been inferred from recent eddy covariance studies at undisturbed sites.
英文关键词	Carbon dioxide; Climate change; Climatology; Ecosystems; Mathematical models; Eddy covariance methods; Forestry; carbon flux; eddy covariance; net ecosystem exchange; old-growth forest; seasonality; sequestration (chemistry); article; carbon dioxide fixation; carbon dioxide measurement; carbon sequestration; confidence interval; covariance; ecological niche; ecosystem; prediction; priority journal; seasonal variation; tree growth; wet deposition; Brazil; Carbon; Carbon Dioxide; Confidence Intervals; Ecosystem; Oxygen Consumption; Photosynthesis; Rain; Seasons; Trees; Wood; Brazil; South America
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/245327
作者单位	Dept. of Earth and Planet. Sciences, Harvard University, Cambridge, MA 02138, United States; University of California, Department of Earth System Science, Irvine, CA 92697, United States; Department of Atmospheric Sciences, University of Sao Paulo, Sao Paulo 05508-900, Brazil; Ctro. de Ener. Nucl. na Agricultura, University of Sao Paulo, Piracicaba 13416-000, Brazil; Complex Systems Research Center, University of New Hampshire, Durham, NH 03824, United States; U.S. Dept. of Agric. Forest Service, Intl. Institute of Tropical Forestry, San Juan, PR 00926, United States; Inst. Nac. De Pesq. Espaciais (INPE), Sao Paulo 12227-010, Brazil; Dept. of Geology and Geochemistry, Stockholm University, Stockholm 10691, Sweden
推荐引用方式 GB/T 7714	Saleska S.R.,Miller S.D.,Matross D.M.,et al. Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses[J],2003,302(5650).
APA	Saleska S.R..,Miller S.D..,Matross D.M..,Goulden M.L..,Wofsy S.C..,...&Silva H..(2003).Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses.Science,302(5650).
MLA	Saleska S.R.,et al."Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses".Science 302.5650(2003).