Efecto del arbolado urbano en la distribución espacial del dióxido de carbono emitido en la zona industrial de Bogotá D.C.

Abstract

The carbon dioxide (CO2) released into the atmosphere by natural and anthropogenic agents, acts as a greenhouse gas that contributes to global warming and climate change too. However, nature maintaining the balance, manages through trees to capture part of this gas and remains latent in its biomass. In this context, the present work has the question about how to estimate the balance between the industrial CO2 emissions and the absorption effect natural of this gas by urban trees. The study area was three localities of the city of Bogotá D.C. (Puente Aranda, Kennedy and Fontibón). The methodology combined data mining techniques, remote sensing, geostatistics and raster analysis, geostatistics and raster analysis, following a five-stage flow according with: 1) information management, 2)data preparation ,3) exploratory analysis, 4) spatial modeling, and 5) model evaluation, these stage for the variables CO2 Fixed and CO2 Emitted. As a result of the methodological development was possible to obtain interpolated surface maps for each variable with a level of confidence in the predictions of 97.7%. for fixed CO2 and 97.66% for emitted CO2. Subsequently, the CO2 balance surface was derived using map algebra from the previous spatial models. The main findings of this research are the identification of the tree species with the highest CO2 fixation capacity, such as: "mangle de tierra fría, aliso and roble"; as well as the industrial activities with the highest CO2 emissions of this gas, which include: food and beverages, textiles and chemical products. Spatial models are useful to focus actions in the territory by achieving a spatial resolution level of 10 m for each variable and the CO2 balance map makes it possible to identify those areas where there are few mitigation effects of emissions, which could be the subject of environmental plans for planting tree species that are more suitable by their ecological action.