Keanekaragaman Dan Asosiasi Fungi Mikoriza Arbuskula Pada Lahan Pasca Tambang Di Karst Maros- Pangkep = Diversity and Association of Arbuscular Mycorrhizal Fungi in Post-Mining Land in the Maros-Pangkep Karst Area

Background. The abundant natural resources in the Maros-Pangkep Karst area have made it vulnerable to degradation due to various human activities. Land degradation is characterized by a decline in physical, chemical, and biological conditions. Post-mining land is typically exposed and lacks vegetation cover. This condition indicates that the disturbance intensity is severe and long-lasting. The diversity of arbuscular mycorrhizal fungi (AMF) and their colonization are crucial, especially in karst areas. AMF are fungi that form a mutualistic symbiotic relationship with plant roots. Purpose. The objective of this study is to uncover the presence, diversity, and level of association of arbuscular mycorrhizal fungi (AMF) found in post-mining land cover. The expected benefit of this research is to provide information regarding the types, population, and diversity of AMF, as well as their association with plants in degraded mining areas. Method. The method used in this study is a descriptive-exploratory approach with non-proportional purposive sampling. Results. The results of spore identification in the post-mining land of the Maros-Pangkep karst area showed the presence of five spore types from two genera: Entropospora sp1, Entropospora sp2, Glomus sp1, Glomus sp2, and Glomus sp3, with an average spore density of 20.1 spores/50g, which is classified as very low. Among these five species, Entropospora sp1 was the most dominant, although its average spore density was very low, with a relative abundance of 43.43% and a relative frequency of 100%. Conclusion. The Maros-Pangkep karst area, particularly post-mining land, has low biological soil quality, as evidenced by the low population and diversity of AMF found. Meanwhile, plant root colonization associated with AMF is categorized as moderate. High AMF colonization can support natural succession and plant survival, particularly in post-mining land.