Abstract
Coal mining production in East Kalimantan use open mining methods that changes ecosystem performance. After mining activity, the company is obligate to restore and rehabilitate the area to improve the land conditions. The study aims to evaluate plant performance in four different plants age to give brief information in restoration and rehabilitation in post coal mining land. Four different ages of two species, Falcataria falcata and Enterolobium cyclocarpum, were measured for diameter, height, and survival rate in the 0.25 ha of the plot sample. The measurement indicated that Falcataria falcata could reach diameter and height rate per year in 2.89 centimetres and 2.08 meters, respectively. As comparison, The Enterolobium cyclocarpum diameter performance could reach 3.54 centimetres per year; however, height performances only reach 1.75 meter per year. The first species indicated better indication for the standing performance; however, the other species indicated better performance in the canopy cover that could be advantage for soil micro climate and water conservation.
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