| dc.description.abstract | Plantation forestusing native species is very important effort to support biodiversity conservation. Still, analysis of its feasibility isneeded to guarantee sustainable forest management.The research aimswere toassess the feasibility of plantation forestry ofAgathis dammaraand Eusideroxylon zwageri based on productionmodelsand financial simulation of stands management. The production models were developed based onplantation forestsinBalikpapan, East Kalimantan,Indonesia. Using these plantations we developed models to estimate tree volume, total volumeper hectare, Mean Annual Volume Increment(MAI) and Current Annual Increment(CAI)for each species. Financial analyses were carried out to assess the Pay Back Period(PBP), Net Present Value(NPV), Net Benefit/Cost(B/C) Ratio, Internal Rate of Return(IRR)andEquivalent Annual Annuity(EAA). The results of production model showed that A. dammarastands would reachoptimum production at the age of 25 yearswhile that of E. zwageriat the age of 150 years. A. dammarastands produce higher MAI of15.67 m3ha-1 year-1and total volume of 383.72 m3ha-1than E. zwageriwith MAI1.89 m3ha-1 year-1and total volume of 282.78 m3ha-1. The result of financial analysis showed that A. dammaraplantationhad theIRR higher than the Minimum Acceptable Rate(MAR) and the Net B/C Ratio of higher than 1,while E. zwagerihad the Net B/C Ratio of lower than 1. A. dammaraplantation also hada positive NPV value of IDR 78,699,974 while E. zwageriplantation had a negative NPV value of IDR 91,439,292. These results suggest that developing A. dammaraplantation is more desirable than E. zwageriplantation. | |
