Cambio de cobertura y uso de suelo de un área de bosque seco de las provincias del Oro y Loja para el periodo 2018 - 2022

Abstract

Abstract: A latent concern in the international community in recent years is the rapid change in land use that is taking place in tropical dry forests. Given this concern, it has been necessary to investigate and determine how much is actually being changed. To determine this reality, a temporal analysis of the dynamics of land use change was carried out in an area of dry forest in the south of the equator, located between the provinces of El Oro and Loja. This work was carried out in two periods of the year. 2018 and 2022, the analyzes were carried out with the help of a GIS Geographic Information System software called QGIS, for this six categories of land use were determined (forest, agricultural areas, bare soil, urban areas, rivers, covered areas by clouds), for each of the few categories, spectral seeds were raised prior to classification, based on secondary geographical information, then a supervised classification was carried out using a maximum probability algorithm, finally the change rates were calculated for each analyzed period based on the proposed Puyravaud rate. The results obtained show us that comparing the data obtained from the year 2018 with respect to the year 2022, the forest class suffered a reduction in the forest area by 1.88% and the agricultural area by 5.38%, while the bare soil increased significantly 9.65%, urban areas did so by 1.24%.