Estimación del efecto del cambio climático en las emisiones de COVS no metanogénicos de origen biogénico en la provincia de Chimborazo.

Abstract

The objective of this research is to estimate the effect of climate change on the emissions of volatile organic compounds (VOCs); from the elaboration of land use maps in 1985 and 2016 in which the dominant plant species were identified; these serve to quantify monthly and annual isoprene, monoterpene and other volatile organic compounds (OCOV) emissions. Using ArcGis 10.2, a thematic map base of the aforementioned compounds was made and the temperature and radiation maps were interpolated with the soil use map, in order to obtain a single table with data on temperature, radiation and type of predominant vegetation. Regarding the results, it was observed that in the year 1985 a total of 3611.81 kt / year of VOCs were estimated; distributed in the following way isoprene emissions 100.62 kt / year, monoterpenes 3199.92 kt / month and OCOV's of 311.27 kt / year, obtaining an average correlation between the isoprene / monoterpenes. Isoprene and OCOV emissions, maintain similar values with an average of 205.94 kt / year; while the monoterpenes reach very high levels and these correspond to the end of the rainy seasons. For the year 2016 there is a total estimate of 2736.13 kt / year, distributed for isoprene emissions at 192.19 kt / year, monoterpenes with 2312.67 kt / year and OCOV's at 231.27 kt / year. It was concluded that the change in coverage and fragmentation of forests are responsible for the presence of the VOCs, together the synergy of the variation of the temperature, it is estimated that the emission levels of the OCOV's when the temperature increases: these will be much higher levels, since the influence of temperature is related to the emission potential.