Potential Biomass Production Estimation of Wood Energy Species in Post Mining Reclamation Area Using CO2FIX Model

Abstract

One of the many potential uses of post-mining reclaimed land is for growing trees to use as a source of energy through their biomass. CO2FIX is a computer simulation model and can be used to estimate the production of biomass and carbon accumulation pattern of a wooden stand. The purpose of this research was to simulate biomass production of five wood energy species currently grown in the post-coal mining reclamation area at South Kalimantan, i.e. Paraserianthes falcataria, Senna siamea, Samanea saman, Peronema canescens, and Vitex pinnata. The CO2FIX model firstly parameterized for application on the study area. The data used for parameterization gathered through literature studies and field measurements. The result indicates that the parameterized CO2FIX model could realistically simulate the growth pattern of five wood energy species grown in post-mining reclaimed land. Next, the model was used to simulate the growth of five energy wood species in the following setting: monoculture planting, 3 x 3 m planting distance, and 20 years simulation. Total of biomass in descending order shown by the stand of Senna siamea (639.35 MgDM/ha), Paraserianthes falcataria (555.52 MgDM/ha), Samanea saman (385.77 MgDM/ha), Peronema canescens (297.71 MgDM/ha), and Vitex pinnata (219.42 MgDM/ha), respectively.