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Record 4 of 98
Recent Rates of Forest Harvest and Conversion in North America
External Online Source: doi:10.1029/2010JG001471
Author and Affiliation:
Masek, Jeffrey G.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Cohen, Warren B.(Forest Service, Pacific Northwest Research Station, Corvallis, OR, United States)
Leckie, Donald(Canadian Forestry Service, Pacific Forestry Ctr., Victoria, British Columbia, Canada)
Wulder, Michael A.(Canadian Forestry Service, Pacific Forestry Ctr., Victoria, British Columbia, Canada)
Vargas, Rodrigo(Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, Dept. de Biologia de la Conservacion, Mexico)
de Jong, Ben(El Colegio de la Frontera Sur, Tabasco, Mexico)
Healey, Sean(Forest Service, Rocky Mountain Research Station, Ogden, UT, United States)
Law, Beverly(Oregon State Univ., College of Forestry, Corvallis, OR, United States)
Birdsey, Richard(Forest Service, Northern Global Change Research Program, Newtown Square, PA, United States)
Houghton, R. A.(Woods Hole Research Center, Falmouth, MA, United States) Show more authors
Abstract: Incorporating ecological disturbance into biogeochemical models is critical for estimating current and future carbon stocks and fluxes. In particular, anthropogenic disturbances, such as forest conversion and wood harvest, strongly affect forest carbon dynamics within North America. This paper summarizes recent (2000.2008) rates of extraction, including both conversion and harvest, derived from national forest inventories for North America (the United States, Canada, and Mexico). During the 2000s, 6.1 million ha/yr were affected by harvest, another 1.0 million ha/yr were converted to other land uses through gross deforestation, and 0.4 million ha/yr were degraded. Thus about 1.0% of North America fs forests experienced some form of anthropogenic disturbance each year. However, due to harvest recovery, afforestation, and reforestation, the total forest area on the continent has been roughly stable during the decade. On average, about 110 m3 of roundwood volume was extracted per hectare harvested across the continent. Patterns of extraction vary among the three countries, with U.S. and Canadian activity dominated by partial and clear ]cut harvest, respectively, and activity in Mexico dominated by conversion (deforestation) for agriculture. Temporal trends in harvest and clearing may be affected by economic variables, technology, and forest policy decisions. While overall rates of extraction appear fairly stable in all three countries since the 1980s, harvest within the United States has shifted toward the southern United States and away from the Pacific Northwest.
Publication Date: Apr 15, 2011
Document ID:
20120010374
(Acquired Jun 28, 2012)
Subject Category: GEOPHYSICS
Report/Patent Number: GSFC.JA.00336.2012
Document Type: Journal Article
Publication Information: Journal of Geophysical Research; Volume 116
Contract/Grant/Task Num: DE-FG02-04ER63911
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Department of Energy; Washington, DC, United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 22p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DEFORESTATION; FORESTS; AGRICULTURE; REFORESTATION; EXTRACTION; CARBON; BIOGEOCHEMISTRY; NORTH AMERICA; TECHNOLOGIES; TRENDS; ESTIMATING; ECONOMICS
Availability Source: Other Sources
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Last Modified: June 28, 2012
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