000 02594nam a22002897a 4500
003 UPMIN
005 20230309160707.0
008 230309b |||||||| |||| 00| 0 eng d
040 _cUP Min
100 _92834
_aPereira, Rosalyn A.
245 _aForest clearance and fragmentation in Palawan and Eastern Mindanao biodiversity corridors (1990-2000): a time sequential analysis of LANDSAT imagery
260 _aMintal, Tugbok District 8022 Davao City
_bOffice of Research University of the Philippines Mindanao
_c2006
300 _a130-147 pages
520 3 _aConservation 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 analyzing Landsat satellite imagery at a spatial resolution of 28.5 m. The dataset analyzed 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.
650 _aBiodiversity conservation
_92128
650 0 _aPalawan Biodiversity Corridor
_92835
650 0 _aEastern Mindanao Biodiversity Corridor
_92837
650 0 _aMindanao studies
_9120
700 _92838
_aEpting, Justin
700 _92839
_aJuhn, Daniel
700 _92840
_aCoroza, Oliver
700 _92841
_aMiller, Leanne
700 _92842
_aMaon, Ferdinand
773 _x1656-3719
_tBanwa
_nSpecial issue: 2006 & 2007 Proceedings of the Wildlife Conservation Society of the Philippines
_013147
_gVolume 3, Number 1 & 2
_d2006
856 _uhttps://koha.upmin.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=4db9acae715cfde5ebfe5083f1ef4fc2
942 _2lcc
_cAT
_n0
999 _c13629
_d13629