Avaliação das mudanças da cobertura florestal no distrito de Chokwé

Abstract

The present study focuses on the assessment of forest cover changes in Chokwé district, Gaza province. In order to carry out this study, a bibliographic review was carried out, consultation of the maps of use and land cover of DINAGECA of the year 1999, topographic maps, consultation of several secondary sources, interpretation and analysis of two satellite images of 30X30m of special resolution, referring to During the dry season, from 1992 to 2002, field observation was carried out. The interpretation and analysis of satellite images was carried out with the aid of the Areview GIS program and confirmed with DINAGECA's 1999 land use and land cover charts and fieldwork. The results of this study showed that the destination suffered slight changes in forest cover and that these changes are the result of a combination of several factors, namely the exploitation of firewood and charcoal and the expansion of agricultural areas. On the other hand, the results indicate that the greatest conversions of forests are transformed into herbaceous formation followed by modifications to agriculture. The highest percentage of annual change by forest type is from open mangroves, followed by low shrubs. Finally, the annual rate of change in forest cover was estimated at 9%.