Land use change net removals associated with sugarcane in Brazil.
2023
GUARENGHI, M. M. | GAROFALO, T. F. T. | SEABRA, J. E. A. | MOREIRA, M. R. M. | NOVAES, R. M. L. | RAMOS, N. P. | NOGUEIRA, S. F. | ANDRADE, C. A. DE | MARJORIE MENDES GUARENGHI, AGROICONE; DANILO FRANCISCO TROVO GAROFALO, AGROICONE; JOAQUIM EUGENIO ABEL SEABRA, UNIVERSIDADE ESTADUAL DE CAMPINAS; MARCELO MELO RAMALHO MOREIRA, AGROICONE; RENAN MILAGRES LAGE NOVAES, CNPMA; NILZA PATRICIA RAMOS, CNPMA; SANDRA FURLAN NOGUEIRA, CNPMA; CRISTIANO ALBERTO DE ANDRADE, CNPMA.
This work brings a refined estimation of the land use change and derived CO2 emissions associated with sugarcane cultivation, including changes in management practices and refined land-use carbon stocks, over the last two decades for Brazil?s center?south and north regions. The analysis was carried out at the rural property level, considering spatially explicit land conversion data. With the refinements, we found a net carbon removal of 9.8 TgCO2∙yr−1 in sugarcane cultivation areas in the 2000?2020 period, which was due to the expansion of sugarcane over poor quality pastures (55% of the gross removals), croplands (15%) and mosaic (14%) areas, and the transition from the conventional burned harvesting to unburned (16%). Moreover, 98.4% of expansion was over existent agricultural areas. Considering all the land use changes within sugarcane-producing rural properties, the net removal is even larger, of 17 TgCO2∙yr−1, which is due to vegetation recovery. This suggests that public policies and private control mechanisms might have been effective not only to control deforestation but also to induce carbon removals associated with sugarcane cultivation. These results indicate sugarcane production system and derived products as contributors to net carbon removals in the land sector in Brazil and should be considered for both bioenergy and agricultural sustainability evaluation.
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