Análisis multi-temporal de cobertura vegetal en la zona sur de Ecuador (provincia de El Oro)

Abstract

Abstract:The multitemporal analysis of land use coverage was carried out in an area of ​​5,879 square kilometers belonging to the southern zone of the province of El Oro, the objective was quantify the coverage, period 1990-2010-2020-, based on the Landsat satellite; and to the period 2018-2020, based on the Sentinel satellite, through supervised classification, the classifications were validated by means of confusion matrices where the Kappa indices ranged between 0.66 and 0.78, validating the classification made with georeferenced maps of the area and percentages of the study. The annual exchange rates calculated based on Landsat in the period 1990-2020, indicated a gradual decrease of 0.69% in the square kilometers of forest and an increase of 1.1% in bodies of water and 0.33% in area anthropic; Sentinel data maintained the same pattern of change, decreased 1.51% of the +area of ​​forests and increased the bodies of water by 0.70%, exposing the proliferation of aquaculture activity in the area and therefore the growth of the body area of water.