Rehabilitation of mining areas through integrated biotechnological approach: Technosols derived from organic/inorganic wastes and autochthonous plant development

Santos, Erika S.; Abreu, Maria Manuela; Macı́as, Felipe

doi:10.1016/j.chemosphere.2019.02.172

Cited by 27 publications

(27 citation statements)

References 32 publications

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“…Several degraded soils are non-productive and incapable of generating the ecosystem functions and economic profitability necessary for their recovery. 91 Although governmental and other public/private entities recognize the importance of rehabilitating these areas, the conventional techniques usually applied are limited at the environmental level, because they only act on a few parameters of the medium (eg, increase of pH or organic matter), giving a partial solution. 92 Therefore, more research is necessary for this area.…”

Section: Integrated Rehabilitation Of Degraded Areas Using Green Techmentioning

confidence: 99%

Soil Science Challenges in a New Era: A Transdisciplinary Overview of Relevant Topics

Rodrigo‐Comino

López‐Vicente

Kumar³

et al. 2020

Air, Soil and Water Research

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Transdisciplinary approaches that provide holistic views are essential to properly understand soil processes and the importance of soil to society and will be crucial in the future to integrate distinct disciplines into soil studies. A myriad of challenges faces soil science at the beginning of the 2020s. The main aim of this overview is to assess past achievements and current challenges regarding soil threats such as erosion and soil contamination related to different United Nations sustainable development goals (SDGs) including (1) sustainable food production, (2) ensure healthy lives and reduce environmental risks (SDG3), (3) ensure water availability (SDG6), and (4) enhanced soil carbon sequestration because of climate change (SDG13). Twenty experts from different disciplines related to soil sciences offer perspectives on important research directions. Special attention must be paid to some concerns such as (1) effective soil conservation strategies; (2) new computational technologies, models, and in situ measurements that will bring new insights to in-soil process at spatiotemporal scales, their relationships, dynamics, and thresholds; (3) impacts of human activities, wildfires, and climate change on soil microorganisms and thereby on biogeochemical cycles and water relationships; (4) microplastics as a new potential pollutant; (5) the development of green technologies for soil rehabilitation; and (6) the reduction of greenhouse gas emissions by simultaneous soil carbon sequestration and reduction in nitrous oxide emission. Manuscripts on topics such as these are particularly welcomed in Air, Soil and Water Research.

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Section: Integrated Rehabilitation Of Degraded Areas Using Green Techmentioning

confidence: 99%

Soil Science Challenges in a New Era: A Transdisciplinary Overview of Relevant Topics

Rodrigo‐Comino

López‐Vicente

Kumar³

et al. 2020

Air, Soil and Water Research

Self Cite

View full text Add to dashboard Cite

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“…Weiler et al found that coal mining wastes with high sulfur levels could be used in technosol formulations for the reclamation of mining areas [91]. Similarly, Santos et al [96] proposed the rehabilitation of mining sites through the combined use of constructed technosols and phytoremediation activities. The solution allowed the germination and growth of plant species whereas the content of contaminants observed in the plants was below hazardous levels.…”

Section: Waste Materials Employed As Structural Componentsmentioning

confidence: 99%

Constructed Technosols: A Strategy toward a Circular Economy

et al. 2021

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Soil is a non-renewable natural resource. However, the current rates of soil usage and degradation have led to a loss of soil for agriculture, habitats, biodiversity, and to ecosystems problems. Urban and former industrial areas suffer particularly of these problems, and compensation measures to restore environmental quality include the renaturation of dismissed areas, de-sealing of surfaces, or the building of green infrastructures. In this framework, the development of methodologies for the creation of soils designed to mimic natural soil and suitable for vegetation growth, known as constructed soils or technosols, are here reviewed. The possible design choices and the starting materials have been described, using a circular economy approach, i.e., preferring non-contaminated wastes to non-renewable resources. Technosols appear to be a good solution to the problems of land degradation and urban green if using recycled wastes or by-products, as they can be an alternative to the remediation of contaminated sites and to importing fertile agricultural soil. Nevertheless, waste use requires analysis to ensure the salubrity of the starting materials. Moreover, materials produced on site or nearby minimize the cost and the environmental impact of transport, thus the involvement of local stakeholders in the urban land management must be encouraged.

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“…Although some countries have reported successful experiences in rehabilitating abandoned mines using Technosols [35][36][37][38], most of these researches were conducted in the temperate climate zone, mainly in Europe. One of the consequences of this research scenario is the disregard of the current Brazilian Soil Classification System (SiBCS) [39] for the Technosols, which remains unrecognized as a specific soil order.…”

Section: Why Technosols?mentioning

confidence: 99%

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

et al. 2020

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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.

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Rehabilitation of mining areas through integrated biotechnological approach: Technosols derived from organic/inorganic wastes and autochthonous plant development

Cited by 27 publications

References 32 publications

Soil Science Challenges in a New Era: A Transdisciplinary Overview of Relevant Topics

Soil Science Challenges in a New Era: A Transdisciplinary Overview of Relevant Topics

Constructed Technosols: A Strategy toward a Circular Economy

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

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