Assessment of the State of Deforestation of the Mayombe Forest by Remote Sensing from 1990 To 2015 (Kongo Central, D.R. Congo).
The majority of forests in the Democratic Republic of Congo are undergoing more or less severe deforestation and degradation, with negative impacts not only on the ecosystems and lifestyles of local populations, but also on the humanity as a whole because of global climate change and loss of biodiversity. Located in west of the Democratic Republic of Congo in Kongo Central Province, the Mayombe forest is one of those forests in the Democratic Republic of Congo mainly affected by deforestation. This research aims at remotely estimate deforestation in the Mayombe region for the period of 1990 to 2015 from multi-satellite data.
We used Landsat TM images (Thematic Mapper, Enhanced Thematic Mapper) and OLI (Operational Land Imager) with a spatial resolution of 30 m taken in 1990, 2000, 2010 and 2015. The diachronic comparison method and the matrix of confusion were used to validate the results of the classification, the transition matrix was used to perceive the rate of change. All these aspects of mapping were coupled by those of structural indices space in order to quantify any variations in land use and to determine the type of changes made in each land-use class. The results showed that the forest is under heavy human pressure, it has changed a lot in 25 years noticeable by deforestation and degradation of the vegetation cover. The average rate of deforestation is 15.5% for a decade in the studied area. Télécharger l'article