Strategic planning to mitigate mining impacts on protected areas in the Brazilian Amazon

Juliana Siqueira-Gay (), Jean Paul Metzger, Luis E. Sánchez and Laura J. Sonter
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Juliana Siqueira-Gay: University of São Paulo
Jean Paul Metzger: University of São Paulo
Luis E. Sánchez: University of São Paulo
Laura J. Sonter: The University of Queensland

Nature Sustainability, 2022, vol. 5, issue 10, 853-860

Abstract: Abstract Growing demand for minerals is increasing pressure to open protected areas (PAs) for mining. Here we develop spatially explicit models to compare impacts among five policy scenarios to downgrade combinations of PA to allow mining in the Brazilian Amazon. We found downgrading (opening) the region’s entire PAs network to develop an additional 242 mineral deposits would cause 183 km2 of deforestation from mining, half of this in highly biodiverse regions. This scenario would also require 1,463 km of new roads that facilitate access to the region, causing indirect deforestation (estimated to be 40 times larger than direct mining clearing) and forest fragmentation. Downgrading fewer PAs would halve the impacts of mine expansion but require longer access roads per additional deposit mined to avoid crossing areas still protected. Promoting sustainable development while safeguarding biodiversity in mineral-rich regions requires strategic long-term planning that includes identifying no-go areas critical to conservation and designing policies to reduce infrastructure impact when providing access to new mining areas.

Date: 2022
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DOI: 10.1038/s41893-022-00921-9

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