LIFE CYCLE ASSESSMENT AND CARBON BALANCE IN COFFEE PRODUCTION SYSTEMS IN CERRADO MINEIRO, BRAZIL
DOI:
https://doi.org/10.47820/recima21.v4i12.4690Keywords:
Balanço de CarbonoAbstract
Our aim was to estimate the environmental impacts between conventional coffee production systems (CV) and multi-conservation practices (MC), using Life Cycle Assessment (LCA) and soil organic carbon stocks. The inventory period was from 2008 to 2018. Primary data from the production stages, scientific articles, on-site organic carbon and the Ecoinvent database version 3.7 were used, analyzed in SimaPro version 9.2. Stocks were calculated according to IPCC2019. The carbon stock and carbon dioxide equivalent (CO2eq) in the soil under the MC system was 49 Mg C ha-1 year-1 and 179 Mg CO2eq ha-1year-1, respectively, while the CV system obtained 30 Mg C ha-1year-1 and 110 Mg CO2eq ha-1year-1.The increase in carbon was over 38% in the MC system. The CV system emitted 54,77 Mg CO2eq ha-1year-1, 37,70% more than the MC system. The carbon balance in the MC system resulted in -144.38 Mg CO2eq ha-1year-1 while in the CV system it was -55.23 Mg CO2eq ha-1year-1. Lower values for soil acidification (70.20 Mg SO2eq ha-1year-1) and Land Use (4.99 m² kg-1 of green coffee) were obtained in the MC. The mix of soil conservation practices, controlled use of pesticides and fertilizers and reduction of fossil fuels helped mitigate greenhouse gases while increasing average productivity (39 bags ha-1), contributing to environmental preservation and, consequently, economic gains for rural producers
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