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Abstract
Ecological Change Detection of Burnt Forest Area Using Multi-Temporal Landsat TM Data
Track: Forestry, Wildlife, and Fisheries Management
Author(s): Seung Lee
The tremendous forest fire broke out along the East Coast in Gangwon Province, Korea and lasted over a week in April 2000. More than 16,000 hectares of forest area was assumed to be burnt and damaged by forest fire. To detect and assess the forest ecosystem changes of forest burnt area over times, multi-temporal Landsat TM data obtained in May 20,1998(before fire occurrence), May 25, 2000(a month later after fire extinction) and May 28, 2001 (a year later after fire extinction) were used, respectively. After image to image registrations, NDVI values were computed for each image and Image Differencing algorithms was applied to change detection. The NDVI value of burnt area was revealed to be 151.2 in May 2000 and this value was extremely lower than 191.8 of May 1998. But the NDVI(178.8) of May 2001 was higher than that of image 2000. This result shows that the vegetation cover of burnt forest area was getting recovered after fire occurrence.
Seung Lee
Korea Forest Research Institute
207 Chongnyangni-dong
Dongdaemun-ku
Seoul 130-712
KOREA
Phone: 82-2-961-2843
Fax: 82-2-967-5101
E-mail: frishlee@foa.go.kr