气候变化领域集成服务门户(CCPortal): Ecology: Selective logging in the Brazilian Amazon

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DOI	10.1126/science.1118051
	Ecology: Selective logging in the Brazilian Amazon
	Asner G.P.; Knapp D.E.; Broadbent E.N.; Oliveira P.J.C.; Keller M.; Silva J.N.
发表日期	2005
ISSN	0036-8075
起始页码	480
结束页码	482
卷号	310 期号:5747
英文摘要	Amazon deforestation has been measured by remote sensing for three decades. In comparison, selective logging has been mostly invisible to satellites. We developed a large-scale, high-resolution, automated remote-sensing analysis of selective logging in the top five timber-producing states of the Brazilian Amazon. Logged areas ranged from 12,075 to 19,823 square kilometers per year (±14%) between 1999 and 2002, equivalent to 60 to 123% of previously reported deforestation area. Up to 1200 square kilometers per year of logging were observed on conservation lands. Each year, 27 million to 50 million cubic meters of wood were extracted, and a gross flux of ∼0.1 billion metric tons of carbon was destined for release to the atmosphere by logging.
英文关键词	Deforestation; Remote sensing; Wood; Amazon deforestation; Conservation lands; Logged areas; Logging (forestry); carbon; carbon; deforestation; logging (timber); remote sensing; unsupervised classification; article; atmosphere; Brazil; deforestation; logging; nonhuman; priority journal; remote sensing; telecommunication; tropical rain forest; wood; ecosystem; environmental protection; forestry; industry; space flight; tree; wood; Deforestation; Logging; Remote Sensing; Wood; Amazonia; South America; Western Hemisphere; World; Brazil; Carbon; Conservation of Natural Resources; Ecosystem; Forestry; Industry; Spacecraft; Trees; Wood
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/242909
作者单位	Department of Global Ecology, Carnegie Institution of Washington, Stanford, CA 94305, United States; U.S. Department of Agriculture Forest Service, International Institute of Tropical Forestry, Rio Piedras, 100745, Puerto Rico; Complex Systems Research Center, Morse Hall, University of New Hampshire, Durham, NH 03824, United States; Empresa Brasileira de Pesquisa Agropecuária-Amazonia Oriental, Trav. Dr Eneas Pinheiro SN, Belem CEP 66095-100, Pará, Brazil
推荐引用方式 GB/T 7714	Asner G.P.,Knapp D.E.,Broadbent E.N.,et al. Ecology: Selective logging in the Brazilian Amazon[J],2005,310(5747).
APA	Asner G.P.,Knapp D.E.,Broadbent E.N.,Oliveira P.J.C.,Keller M.,&Silva J.N..(2005).Ecology: Selective logging in the Brazilian Amazon.Science,310(5747).
MLA	Asner G.P.,et al."Ecology: Selective logging in the Brazilian Amazon".Science 310.5747(2005).