Sustainability Status and Factor Analyses to Improve Post-mining Land Use Sustainability Level with Pepper and Rice Plants

Abstract

Degraded post-mining land can be recovered by organizing and restoring the environment through revegetation, reclamation, and post-mining land use, which will provide an optimum benefit for the community either economically or socially around the post-mining land. Therefore, sustainability analysis studies are necessary to optimize the post-mining land use sustainability and determination. This study aimed to: (1) Determine the sustainability status and factors that can be used to improve the post-mining land use with the Multidimensional-Scalling (MDS) method based on the ecological, economical, social, law, infrastructure, and technological dimensions, (2) Calculate the business investment eligibility in post-mining land with pepper and rice plants using the Cost-Benefit Analysis (CBA) method. The MDS-RAPs analysis results obtained ecological sustainability index at 56.73, economical sustainability index at 63.72, social sustainability index at 67.09, law sustainability index at 58.18, infrastructure and technological sustainability index at 89.74. Based on the Investment Eligibility Analysis in Pepper Seedlings, the Net Present Value (NPV) was obtained at Rp 291,770,337.19, Net Benefit Cost Ratio (Net B/C) at 8.95, Internal Rate of Return (IRR) at 13.8%, and Gross BC at 32.6. Meanwhile, the Investment Eligibility Analysis in Rice Plant Cultivation obtained the NPV at Rp 178,372,549.80, Net B/C at 3.89, IRR at 23.63%, and Gross BC at 23.2. From these results, it can be concluded that the open coal post-mining land use as pepper and rice plant cultivations is eligible to conduct based on the sustainability and business investment eligibility analyses, following the proper environmental organization and restoration with the respective post-mining land characteristics.

Keywords: Sustainability, post-mining, investment, pepper, rice plant.