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Forest Clearance and Fragmentation in Palawan and Eastern Mindanao Biodiversity Corridors (1990-2000): A Time Sequential Analysis of LANDSAT Imagery

BANWA Archives (2004-2013)

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Title Forest Clearance and Fragmentation in Palawan and Eastern Mindanao Biodiversity Corridors (1990-2000): A Time Sequential Analysis of LANDSAT Imagery
 
Creator Pereira, Rosalyn A.
Epting, Justin
Juhn, Daniel
Coroza, Oliver
Miller, Leanne
Maon, Ferdinand
 
Description Conservation International has mapped changes in forest cover in the Philippines over large areas in two biodiversity corridors, as defined by the Critical Ecosystems Partnership Fund (CEPF). These changes were derived by analysing Landsat satellite imagery at a spatial resolution of 28.5 m. The dataset analysed includes Landsat 5 data from circa 1990 (+/- 3 years) and Landsat 7 data from circa 2000. Image dates were determined based on the availability of free, nearly cloud-free imagery from the University of Maryland’s Global Land Cover Facility (http://glcf.umiacs.umd.edu/index.shtml). Additional scenes were also purchased for areas most heavily covered with clouds. A supervised classification approach was employed, using a decision tree classifier. The total amount of forest cleared during the time period was 20.1 km2 in the Eastern Mindanao corridor and 37.5 km2 in the Palawan biodiversity corridor, representing an average annual forest clearance rate of 0.04 percent for Eastern Mindanao and 0.07 percent for Palawan.   Forest fragmentation was also observed to be more apparent in Palawan due to clearance of smaller forest patches.  Forest cover interpretation from the Landsat imagery was validated through a collective aerial system of videography and photography. The combined accuracy of the classified maps was 85.4 percent.
 
Publisher University of the Philippines Mindanao
 
Date 2015-09-28
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://ojs.upmin.edu.ph/index.php/banwa-archives/article/view/23
 
Source BANWA Archives (2004-2013); Vol 3 No 1&2 (2006); 130-147
1656-3719
 
Language eng
 
Relation http://ojs.upmin.edu.ph/index.php/banwa-archives/article/view/23/28
 
Rights Copyright (c) 2015 Rosalyn A. Pereira, Justin Epting, Daniel Juhn, Oliver Coroza, Leanne Miller, Ferdinand Maon
http://creativecommons.org/licenses/by-nc-nd/4.0