Revealing Tropical Technosols as an Alternative for Mine Reclamation and Waste Management

Autor: Tiago Osório Ferreira, Francisco J. R. Ruiz, Daniel Pontes de Oliveira, Fabio Perlatti
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Minerals, Vol 10, Iss 2, p 110 (2020)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Popis: This study was based on the premise that Technosols constructed under tropical conditions are a valuable tool for inexpensive mine reclamation programs. These anthropogenic soils are still poorly studied in Brazil and are not recognized by the Brazilian Soil Classification System. Given the importance of mining to the Brazilian economy (the sector accounts for 20% of all products exported and 5% of the gross domestic product), there is an urgency to properly manage the large amount of waste produced. For this purpose, we suggest the use of Technosols as a strategy to overcome both land degradation and waste production by presenting a successful case of mine rehabilitation combining limestone wastes and tropical grasses. We show that Technosols constructed from the mine spoils can develop into soils suitable for agriculture in a few years, promoting land reclamation and producing food and energy. These soils are also valuable resources that can provide important ecosystem services, such as organic carbon storage.
Databáze: OpenAIRE
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