GIS-Based Optimization Method for Utilizing Coal Remaining Resources and Post-Mining Land Use Planning: A Case Study of PT Adaro Coal Mine in South Kalimantan

Resource of the coal maining is defined as the last remaining condition of the resources and reserves of coal when the coal companies have already completed the life of the mine or the expiration of the licensing contract (in accordance with government permission). This research uses approach of knowledge-driven GIS based methods mainly Analytical Hierarchy Process (AHP) and Fuzzy logic for utilizing coal remaining resources and post-mining land use planning. The mining area selected for this study belongs to a PKP2B (Work Agreement for Coal Mining) company named PT Adaro Indonesia. The result shows that geologically the existing formation is dominated by Coal Bearing Formation (Warukin Formation) which allows the presence of coal remaining resources potential after the lifetime of mine, and the suitability of rubber plantation for the optimization of land use in all mining sites and also in some disposal places in conservation areas and protected forests.