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Tropical deforestation and habitat fragmentation in the Amazon - Satellite data from 1978 to 1988Landsat satellite imagery covering the entire forested portion of the Brazilian Amazon Basin was used to measure, for 1978 and 1988, deforestation, fragmented forest, defined as areas less than 100 square kilometers surrounded by deforestation, and edge effects of 1 kilometer into forest from adjacent areas of deforestation. Tropical deforestation increased from 78,000 square kilometers in 1978 to 230,000 square kilometers in 1988 while tropical forest habitat, severely affected with respect to biological diversity, increased from 208,000 to 588,000 square kilometers. Although this rate of deforestation is lower than previous estimates, the effect on biological diversity is greater.
Document ID
19930065218
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Skole, David
(New Hampshire Univ. Durham, United States)
Tucker, Compton
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
June 25, 1993
Publication Information
Publication: Science
Volume: 260
Issue: 5116
ISSN: 0036-8075
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A49215
Distribution Limits
Public
Copyright
Other

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