 หัวเรื่อง:การวิเคราะห์การลงทุนทางการเงินของสวนสมรมในป่าสงวนแห่งชาติป่าพะโต๊ะ ป่าปังหวาน และป่าปากทรง จังหวัดชุมพร ผู้เขียน: Chanwanitch Khedkasem,  ดร.สันติ สุขสอาด, รองศาสตราจารย์ , ดร.วุฒิพล หัวเมืองแก้ว, ศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe principal objectives of the study were to compare the average return per fruit tree (for the duration of 25 years) among the 3 fruit tree species namely mangosteen, good variety durian and wild durian which were the intercrops species of forest trees in the natural income for covering cost of living of the people residing in Paksong subdistrict, Pha To district, Chumphon province. The using data was collected from 15 sample plots of Suan Som Rom with the size of 40 x 40 m and employed the designed questionnaire interviewed their owner. Results of the study indicated that B/C and NPV per tree of such fruit tree species at the given discount rate of 4, 8 and 12 percent were over than 1 and 0, respectively, and their IRR were over than 12 percent. The investment on mangosteen provided the highest return and the nexts were good variety durian and wild durian, respectively. In case of growing each of such fruit tree species of such fruit tree species by this system, the optimal number of trees by species which will provide the sufficient annual income were 226, 305 and 2,423 trees, respectively. On the other hand in case of growing all mentioned fruit tree species mixed together the optimal ratio and number of trees should be 3:1:2 and 22, 7 and 15, respectively. In addition, based on the opinions of the respondents, they revealed that the needed average natural forest land area per households for practicing Suan Som Rom was 7.3 rai. |