Análisis del comportamiento de la evapotranspiración y su relación con la cobertura vegetal para el periodo 2002 - 2017 en la subcuenca del río Guayabero (Meta)

Abstract

The fragmentation and defaunation of ecosystems have become one of the major consequences derived from the increase in illegal extractive activities generated by the post-conflict; These dynamics are more evident in the conservation zones and protected areas within the Colombian territory and in its buffer zones, increasing degradation and deforestation in the zones. However, even with the evident increase in the loss of coverage, especially forestry, the effect that this has on hydroclimatological variables, important factors within water dynamics, has not yet been studied. In accordance with the above, this research project aims to evaluate the effects generated in evapotranspiration due to the loss of forest cover, in the period of time from 2002 to 2017 in the Guayabero river sub-basin (Meta); This was done from information obtained from remote sensing tools, information from the IDEAM national monitoring network and secondary information. As a result, an increase in surface runoff from the sub-basin was identified thanks to the reduction of forest area and a possible contribution of groundwater within the study area, in addition, the increase in deforested area is attributed to anthropogenic activities, such as crops for legal use. and illegal, thus evidencing a direct correlation with actual evapotranspiration.