Análisis temporal de la cobertura vegetal y la degradación en la extensión de la cobertura de páramo subcuenca San José páramo Rabanal
Fecha
2021-04-22Registro en:
(Arevalo Parra & Duarte Sandoval. 2021) Análisis multitemporal de la cobertura vegetal y la degradación en la extensión de la cobertura de páramo – subcuenca san josé - páramo el rabanal. Universidad Santo Tomás. Tunja.
Autor
Arevalo Parra, Duvan Arley
Duarte Sandoval, Juan Camilo
Institución
Resumen
The moors are mountain ecosystems capable of offering a great variety of functions and services to man, the most important of which are water regulation, thanks to the characteristics of vegetation cover and altitude. Climate change and the intervention of man in terms of mining, agriculture and livestock have been generating as a consequence a high degree of environmental degradation. Thus decreasing its main functions such as water retention and infiltration. This investigative work was able to determine the identification of priority recovery areas and possible measures for this purpose. The foregoing could be specified through the processing of satellite images, the delimitation of the sub-basin, the classification and characterization of the soils, based on the variation in the change of vegetation cover over time and the use of literature for the recovery of ecosystems. high mountain.
The multitemporal analysis of the satellite images confirmed that the intervention of man in the high mountain ecosystems causes a serious deterioration of the vegetation cover and with it the degradation of the native vegetation of the place, giving rise to phenomena that alter the services that the ecosystems lend to the environment and humans. It was determined that the vegetation cover that suffered a considerable deterioration in large areas was the páramo vegetation, with a decrease of 14.8%. The low shrubland decreased in extension by 7.3% and the mixed forest was reduced by 2.3%. It was observed that where native covers decreased, now there are vegetations related to anthropic factors, such as crops. These ecosystem adaptations increased by 14%. Livestock is another disturbance that is leaving dire consequences for the study area, due to the increase in its coverage by 11.4% and, as a consequence of this expansion, bare soils have expanded by 0.8%.
Keywords: páramo, vegetation cover, satellite images, action plan.