Evolución del bosque Siempre Verde Montano Alto de la Subcuenca del río Chambo aplicando el indice de vegetación mejorado en el periodo 2013 al 2020.

Abstract

This research aimed to observe the evolution of the high montane evergreen forest ecosystem of the Chambo River sub-basin from 2013 to 2020 through Landsat 8 images with the improved vegetation index in the Mann-Kendall Test and the transition matrix. The methodology used the Google Earth Engine platform to download the images with the ArcGIS software. It was delimited and processed, obtaining the minimum, maximum, mean, and standard deviation values information through the shapes from 2013 to 2020. It was processed in the TREND statistical software. The evolution study changed ha from good to bad and vice versa, reaching a total of 4508.64 ha, maintaining 6839.08 ha in their respective classifications. The vegetation with low photosynthetic activity and in a poor state of conservation, with good photosynthetic activity and in a good state of preservation, and with very high photosynthetic activity and in an excellent state of conservation, with the thresholds of the improved vegetation index. It was determined that there were non-significant increasing and significant decreasing trends, showing anomalies in the respective dry and rainy seasons. Based on the results, there was a three percent increase in the vigor of the vegetation with very high photosynthetic activity, for which a conservation proposal was implemented. It was recommended to review the information on the state of the ecosystem for compliance with the established priorities and their follow-up.