Potential of native plant species and indigenous arbuscular mycorrhizal fungi in post-mining land recovery and revegetation

Abstract

Background and Objective: Rehabilitation and revegetation is a post-mining activity to restore the condition of the mined land and be able to function optimally. The technology of using arbuscular mycorrhizal fungi (AMF) has been attempted to improve plant growth, especially on marginal and critical land such as mined land. This study was carried out to determine the potential of some local plants, Andalas (Morus macroura) and Indarung (Trema orientalis) that inoculated with indigenous AMF for land recovery and revegetation. Materials and Methods: The study followed completely randomized design (CRD). The treatments were indigenous AMF isolates from the limestone post-mining land of PT. Semen Padang, Control/without mycorrhiza, Glomus sp., Gigaspora sp. and Acaulospora sp. Results: Inoculation of indigenous AMF was able to improve the plants growth on post-mining soil and showed high percentage of roots infection. Inoculation of indigenous AMF increased the organic matter and organic carbon of post-mining soil. Conclusion: Acaulospora sp., were the most suitable type of indigenous AMF for the growth of Andalas (M. macroura) and Indarung (T. orientalis) seedlings that were able to increase plant growth better than controls and showed a high-quality index of seedlings.