Enabling large-scale forest restoration in Minas Gerais state, Brazil
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Membros da banca
Resumo
Large-scale forest restoration is a cornerstone of Brazil's new Forest Code and a key element in its National Determined Contribution (NDC) to emissions reduction. But the path to this target remains unclear due to a lack of information on its economics and implementation challenges. Here, we begin to fill this gap by developing a spatially-explicit model for Minas Gerais state that estimates the costs and benefits of native vegetation regeneration under different restoration approaches. Our results show that 36% (0.7 million ha) of the Forest Code debt in Minas Gerais can be restored using only passive restoration, at a cost of US$ 175 ± 47 million. Adding low-cost assisted natural regeneration would increase that number to 75% (1.5 million ha) at a cost of US$ 776 ± 137 million over a 20 yr period. This would result in a potential sequestration of 284 MtCO2e. However, including the intensive planting methods needed to restore the remaining 25% of highly degraded areas—to fully solve the Forest Code debt and result in a potential sequestration of 345 MtCO2e—would more than double the costs to US$ 1.7 ± 0.3 billion. Our results emphasize the need to implement regional policies that take advantage of the natural regeneration potential as well as prioritize the restoration of areas key to ecosystem services.
Abstract
Assunto
Ecologia, Florestas - Legislação, Florestas - Reprodução
Palavras-chave
Código florestal, Passivo ambiental, Regeneração florestal, Assisted natural regeneration, Spatial optimization model, Dinamica EGO
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Endereço externo
https://iopscience.iop.org/article/10.1088/1748-9326/aa6658