การประเมินมูลค่าบริการทางระบบนิเวศและความคุ้มค่าทางเศรษฐศาสตร์ของสวนยางพาราเชิงเดี่ยวและสวนยางพาราวนเกษตรในพื้นที่ภาคใต้ตอนล่าง

Abstract

The objectives of this study are: 1) to study the pattern of monoculture and agroforestry rubber plantation in case studies, 2) to employ a cost-benefit analysis with ecosystem service values and compare between monoculture and agroforestry rubber plantations in the study areas, and 3) to propose guidelines for improving rubber plantation to be more sustainable in terms of economic and environment. The results showed that the monoculture and agroforestry rubber plantations generally contained similar patterns. However, there were differences in that the intercropping was grown or allowed in the space between the rubber rows in agroforestry plantation and farmers plan not to cut trees down to keep their plantations as a conservation area. It was found that the agroforestry rubber plantations can reduce costs, as well as providing higher benefits from ecosystem services than the monoculture plantations. The agroforestry plantations also yield higher NPV, BCR, and IRR than monoculture. The results recommend that the agroforestry should be promoted as a means to improve rubber plantation, with further study on intercropping plants suitability to reduce the impact of rubber plantation and increase economic and environmental benefits. Additionally, agroforestry must follow the Rubber Research Institute's guideline of management, as well as FSC management, which will move the plantations toward more economical and environmental sustainability.