Early Growth of Seven Local Tree Species In The Reclamation Area of PT Bara Tabang

Abstract

Revegetation of post-mining land with local species has been carried out by coal mining companies in East Kalimantan. However, the information about plant species that can adapt to post-mining land environments is still limited. Therefore, PT Bara Tabang, as a coal mining company, has established a demonstration plot for planting local species in post-coal mining areas. The purpose is to add information on local species that can adapt to the post-mining environment. There were 7 species planted, that is Vitex pinnata, Syzygium polyanthum, Schima wallichii, Shorea balangeran, Melaleuca cajuputi, Syzygium sp., and Hopea mengarawan. 100 plants were planted for each species with the addition of 1 kg of compost for each plant. Observations for six months showed that the survival rate of local species was still above 90%, except for H. mengerawan that only 13%. The species of plants that showed the best growth in height and diameter at 6 months of age were M. leucadendron with 8.08 cm and 0.16 cm respectively. Sc. wallichii showed the lowest growth in height and diameter of 1.60 cm and 0.05 cm respectively at 6 months of age.