Keragaman Flora Di Lahan Reklamasi Pasca Tambang Batubara PT Ba Sumatera Selatan (Flora Diversity at Post-coal Mining Reclamation in the PT Ba South Sumatera)

摘要

The research was conducted in the post-mining land reclamation of PT BA, Tanjung Enim in January to March 2013. The objective of the research was to know the composition and structure of flora in the post-mining reclamated of PT BA, Tanjung Enim. Plots research designed based on the age land reclamatied as follows 20, 15, 10 and 1 year after reclamation is made six square plots as net samplings. Plots sized of tree was 20 m x 20 m, Plot-sized of pole was 10 m x 10 m, plot-sized of sapling was 5 m x 5 me, plot-sized of seedling was 2 m x 2 m, respectively. The results showed that the dominant of flora species in the tree and saplings stage at various ages reclamation was Acacia auriculiformis, in the pole stage was Tectona grandis at the age of 20 year and A. auriculiformis and Eucalyptus deglupta at the age of 15 year, at the saplings plot at the age of 1 year is dominated by Sengon (Paraserianthes falcataria), respectively. This research showed that some indigenous flora species that found and grown in the coal mined lands was Leban (Vitex pinnata), Keliat (Syzygium spp.), Miyang grass (Oplismenus burmannii) and seduduk (Melastoma sylvaticum). The research inicated that dominated species by A. auriculiformis at variuos of age plots cause decrease indegenous flora. The highest of IVI found in the post-mining reclamation dominated by A. auriculiformis at aged 20, 15 and 10 years after land reclamated.