Abstract
In mine design and planning, identifying appropriate Post-Mining Land Use (PMLU) is necessary and crucial to achieving environmental quality and socioeconomic renewal. In this context, Multi-Criteria Decision Making (MCDM) methods are used to support decision-maker and stakeholder decisions. However, most studies regarding the application of MCDM methods to PMLU decisions do not favor their widespread use because they start from an already structured decisional problem. The structure they present may not apply to another PMLU decision. Therefore, the primary goal of this study is to present an innovative methodology and its corresponding framework to help decision-makers and stakeholders structure their PMLU decisions. This innovative methodology can be used from an early stage, with a low level of detail, until a later stage, with a high level of detail, and is composed of three main stages. The first stage is selecting the Transitional Post-Mining Landscape Profile, which guides the user to different Multi-Criteria Decision Analysis (MCDA) goals. The second stage is developing criteria and alternatives according to the MCDA goal, using topics representing essential dimensions that cannot be disregarded, and testing the MCDM methods. Finally, the third stage is the participatory process and final application of MCDM methods.
Highlights
IntroductionPost-Mining Land Use (PMLU) is a key issue regarding the public image of the mining industry
The definition of Transitional Post-Mining Landscape Profile (TPMLP) allows the decision-maker to structure the Multi-Criteria Decision Analysis (MCDA) for a specific mine site and to be guided through the steps needed to complete the revitalization process, which is (1) environmental reclamation with engineering solutions selected; (2) revitalization stage with the theme and selection of the specific new land use; and (3) the attribution of responsibilities over monitoring of the environmental reclamation work and the managing site’s responsibility. These steps are defined by the formulation of four conceptual questions and their answers, which provide the following reasoning regarding the MCDA problem: 1
Question 3 provides insight regarding the stage of completion of terrain modeling and implementation of engineering solutions, which, in turn, allows for the level of detail in the revitalization; and Question 4 indicates that the process is at the final stage
Summary
PMLU is a key issue regarding the public image of the mining industry. Mines abandoned over the last century have been posing environmental risks to water, soil, and air, with impacts on local populations and demands for government management. With more restrictive environmental-impact legislation, no mining activity presently exists without a proper closure and rehabilitation plan in European Union (EU) countries. The experience gained in more recent decades demonstrates that it is not enough to control and reclaim environmental damages, or to reclaim the landscape features without considering the attribution of new functions to the site, called a revitalization process
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