ASSESSMENT OF MANGROVE FOREST CHANGE IN KIEN GIANG PROVINCE PROVINCE ACCORDING TO SATELLITE IMAGES IN THE PERIOD OF 1988-2018

Abstract

Landsat 5 and Landsat 8 remote sensing image data were used to evaluate the changes in the area of mangrove forests (RNM) in Kien Giang province in the period of 1988-2018. The results of the image interpretation in 1988, 2018 and the overlapping of the above maps show: In the 30-year period from 1988 to 2018, the total area of mangroves in Kien Giang province was decreased by 38,4% compared to the beginning, from 7,238.3 ha in 1988 reduced to 4,455.4 ha in 2018, decreasing by 2,783 ha. The recovery speed of mangroves is 2 times lower than their disappearance speed. Specifically, from 1988 to 2018, mangroves disappeared on an area of 5,650.5 hectares and appeared on new area of 2,867.6 hectares, only 1,587.8 hectares of mangroves remained unchanged.