The Impact of Oil Palm Expansions on Agricultural Land Use in Southern Thailand

  • phattanan boonyanuphong Faculty of Humanities and Social Sciences, Prince of Songkla University, Pattani Campus
Keywords: Energy crop, Food crop, Land use, Southern of Thailand


The objective of this study was to project the impacts of energy crop production (oil palm) on prices of product and harvested area of other crops (rubber, coconut, durian, mangosteen, and rice) under the Renewable Energy Plan and Alternative Energy Development Plan: AEDP2015 in Southern Thailand. The Partial Equilibrium Model of each energy crops and other related crops was developed and estimated by Seemingly Unrelated Regression and Two-Stage Least Square. The study revealed that, in normal case of area forecasting, the trend of harvested areas for palm oil, durian and mangosteen was increased. The expansion of mangosteen harvested area was the highest approximately 3.33 % per year, followed by palm oil at 1.94%. In contrast, the harvested areas of rubber, coconut and rice were decreased. In target case, harvested areas of rubber, coconut, durian, mangosteen and rice were declined. The reduction of durian harvested area was the highest approximately 15.83% per year followed by mangosteen, coconut and rice at 15.61%, 2.71% and 2.13% respectively. In addition, most price of energy crop and other related crops have shown an increasing trend in the long term projection in both cases. The results in this study were clearly showed that the expansion of oil palm production has an impact on the harvested area and product prices of other crop, notably in target case. Therefore, the results of the study suggested that the government need to analyze the adequacy and fertility of land before promote oil palm production. Moreover, the government should make a suitable policy to control and zoning of energy crop and other related crop lands in order to reduce a dilemma in resources management and the fluctuation of quantities and prices of crops.


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