Yield assesment and financial analysis of Chukrasia tabularis A. Juss. at Prachuap Khiri Khan Silvicultural Research Station, Prachuap Khiri Khan province | การประเมินผลผลิตและการวิเคราะห์ทางการเงินของไม้ยมหินของสถานีวนวัฒนวิจัยประจวบคีรีขันธ์ จังหวัดประจวบคีรีขันธ์
2020
Pawatchai Prowmasorn(Kasetsart University, Bangkok (Thailand). Faculty of Forestry) | Santi Suksard(Kasetsart University, Bangkok (Thailand). Faculty of Forestry) | Songklod Jarusombuti(Kasetsart University, Bangkok (Thailand). Faculty of Forestry) | Supasit Sriarkarin(Kasetsart University, Bangkok (Thailand). Faculty of Forestry) | Chanittha Chuntachot(Royal Forest Department, Bangkok (Thailand). Forest Research and Development Bureau)
The objectives of this study were to analyze the merchantable volume table, firewood volume table equation, and financial analysis of Chukrasia tabularis A. Juss., in a total of 6 equally spaced plots at Prachuap Khiri Khan silvicultural research station, Prachuap Khiri Khan province. Suitable indicators of 3 criteria methods, benefit–cost ratio (B/C), net present value (NPV), and internal rate of return (IRR) were used, at a given discount rate of 6, 8, 10, and 12 percent and switching value test of the costs and benefits of the project. The equations for estimating the merchantable volume table of C. tabularis A. Juss. was VM = 0.000051523DBH2.692, R2 = 0.8666, with a DBH GT 10 cm, and estimating firewood volume table of C. tabularis A. Juss. was VF = 0.000126765 DBH2.583, R2 = 0.7686 with a DBH LT 10 cm. Financial analysis of the average yield of C. tabularis A. Juss. at different spacings showed that a spacing of 3 m * 4 m, 3 m * 5 m, and 3 m * 6 m at given discount rates of 6, 8, 10 percent and spacing 4 m * 4 m, 4 m * 5 m, and 4 m * 6 m at the given discount rates of 6, 8, 10, and 12 percent had a B/C GT 1, NPV GT 0, and IRR more than that determined by the discount rate. Thus, C. tabularis A. Juss. plantation can be deemed as a project that made a profit. A spacing of 4 m * 6 m yielded the most profit because IRR was 12.81 percent. Switching value test of cost-benefit of different spacing showed that the spacing of 3 m * 4 m, 3 m * 5 m, and 3 m * 6 m, 4 m * 4 m, 4 m * 5 m, and 4 m * 6 m at a discount rate of 6, 8, and 10 percent was rather high, which indicates to it being a low-risk investment. Therefore, the investment in the C. tabularis A. Juss. plantation is an economically viable project
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