Mine Site Rehabilitation

Restoring tropical forests on lands mined for bauxite: Examples from the Brazilian Amazon

Background:

Effective forest restoration is required to avoid the adverse environmental impacts of mining. However, restorationists working in most tropical regions lack the requisite knowledge of species selection and disturbance ecology to aid in mimicking the pre-disturbed ecosystem.  One noteworthy exception to this is the forest restoration initiative created by a Brazilian bauxite mining company operating at Trombetas in Pará State, central Amazonia, since the early 1980s.

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Developing a framework for sustainable development indicators for the mining and minerals industry

BACKGROUND:

Minerals are essential to a variety of industries that help in everyday life. However, the extraction of minerals is often associated with numerous negative environmental impacts. The mining industry is responsible for more pressing sustainability challenges than any other industry. The mining industry must address these challenges by addressing the concerns of different stakeholders, as demonstrated by the Mining, Minerals and Sustainable Development project.

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Tree Communities in Three-Year-Old Post-Mining Sites Under Different Forest Restoration Techniques in the Brazilian Amazon

Background:

Mining has been identified as a major contributor to forest loss, leading to the need for effective restoration techniques in post-mining sites. In this context, the knowledge of floristic composition is crucial for managing natural regeneration, selecting species for restoration plantings, and aiding conservation programs of threatened plant species. One well-known example of mining impacts on the Amazon rainforest vegetation is located in the Paragominas municipality, Pará, Brazil.

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Mining in the Amazon: Importance, impacts, and challenges to restore degraded ecosystems. Are we on the right way?

Background:

With mining playing a significant role in the economies of Amazonian countries, there is a growing urgency to understand, mitigate, and restore the degraded ecosystems that result from these mining operations. These tasks present a complex set of challenges, including technological limitations, legal inconsistencies, and a shortage of qualified professionals.

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Metodología de reforestación y restauración de paisajes amazónicos degradados por minería: análisis de costos

Background:

La actividad minera aurifera artisanal conlleva la deforestación, degradación del suelo, pérdida de biodiversidad y contaminación por mercurio. A medida que esta actividad crece, surge la necesidad imperante de desarrollar metodologías que permitan la reforestación y restauración de las zonas degradadas en los países amazónicos.

Artisanal gold mining activity leads to deforestation, soil degradation, loss of biodiversity and mercury contamination. As this activity grows, there is an urgent need to develop methodologies that allow reforestation and restoration of degraded areas in Amazonian countries.

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Survival and Early Growth of 51 Tropical Tree Species in Areas Degraded by Artisanal Gold Mining in the Peruvian Amazon

Background:

Artisanal and small-scale gold mining has dramatically changed the landscape of tropical ecosystems, completely removing the soil and vegetation and polluting it with mercury disposals. In order to recover these degraded spaces, reforestation projects need to enhance their knowledge of restoration species growth and survival rates under different site conditions, as well as their fertilization needs.

Goals:

The authors of this study aim to (1) test 51 species with potential for ecological restoration and/or forest rehabilitation; (2) assess the potential for biochar amendments for use in reforestation efforts; and (3) explore species performance regarding their contrasting wood density traits.

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Biochar Effects on Two Tropical Tree Species and Its Potential as a Tool for Reforestation

Background:

Although biochar is starting to be recognized as a potential soil fertilizer, most of the current studies are focused on the growth response of herbaceous crops and not on the impacts of biochar on tree development.

Goals:

The authors measure the survival rate, growth, and biomass accumulation of the seedlings of two tropical tree species Terminalia amazonia (“terminalia”) and Guazuma crinita (“bolaina”) under abandoned gold mine conditions: nutrient-poor and sandy soil. The seedlings were tested under six different treatments (three doses of biochar, with and without fertilizer) for six months.

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Protocolo: Mantenimiento y Fertilización de Parcelas de Reforestación

Background:

Como parte del trabajo de investigación que viene desarrollando el Centro de Innovación Científica Amazónica (CINCIA), se ha realizado la instalación de parcelas experimentales de reforestación en áreas degradadas por actividad minera en Madre de Dios.

As part of the research work being carried out by the Center for Amazonian Scientific Innovation (CINCIA), experimental reforestation plots have been installed in areas degraded by mining activity in Madre de Dios.

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Assessing the Carbon Capture Potential of a Reforestation Project

Background:

Reforestation projects are receiving more and more attention due to their potential to sequester carbon and limit the increase of the global average temperature above 2 Celsius degrees. Consequently, is important to evaluate the accuracy of the GHG capture results made by the increasingly funded reforestation platforms.

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Ten principles for restoring campo rupestre, a threatened tropical, megadiverse, nutrient-impoverished montane grassland

Background

In the U.N. Decade on Ecosystem Restoration, one of the most overlooked ecosystem types is tropical grasslands. Studies on these ecosystems are lacking, as are the foundations for restoration. These foundational points of policy, practice, and governance in addition to science need to be addressed. The authors provide 10 principles to restore the campo rupestre, a tropical grassland that is threatened by human activities including mining.

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