Evaluación multitemporal de las emisiones de compuestos orgánicos volátiles no metanogénicos de origen biogénico en la cuenca baja del río Chambo

Abstract

The current technical project evaluated multitemporal spaces of non-methanogenic Biogenic Volatile Organic Compounds emissions (VOCs) in the lower basin of Chambo River, Penipe county; analyzing the climatological variability such as temperature, radiation and vegetation cover equivalent to the years 1998 and 2016. The study area was delimited by vegetation cover and land use in Bilbao, Matus, Puela and El Altar rural parishes, covering an area of 24,616.28 hectares. Tools such as remote sensing satellite images through a geographic information system (GIS) and the application of Guenther's mathematical model were applied. The study determined that VOCBV emissions are directly related to climatic variables (radiation and temperature), these factors must be taken into account when analyzing the behavior of the vegetation cover. Finally, changes in vegetation cover and climatic variables were verified, where the agricultural frontier played an important role reflecting a decrease of 400 Ha, corresponding to 1% in shrub and herbaceous vegetation; while in forests 1179 Ha corresponding to 3.1%. It is recommended to highlight the environmental or cartographic modeling in (GIS) for the different studies regarding vegetation variations through climatological variables since there are not many related studies in Ecuador.