Monitoring of Forest Land Cover Change in Nui Ba Ra Protected Landscape in Vietnam Using Remote Sensing Methods and GIS techniques

Nui Ba Ra Protected Landscape is a specially protected natural area of Vietnam. Protected Landscape is located in Ba Ra Mountain, one of the three highest peaks in the southeast of the country. For monitoring purposes of forest land cover change, Landsat-5 and Sentinel-2A images taken in 1995, 2007 and 2019 were used. To assess the vegetation cover in the Protected Landscape, the Normalized Plant Index Method (NDVI) was used. Allocated forest land is categorized by maximum likelihood in ENVI 5.3. For each satellite image, a statistical analysis of forest land cover change was performed after classification. The results confirm that the area of meadows and shrubs increased from 2.6% in 1995 to 8.1% in 2019, and the area of mixed forests decreased from 96.0% to 89.2%. Thus, there is a general degradation of woody vegetation.