(3) What kind of environmental problems is better handled with a non economic instrumentTo solve the environmental problems of soil erosion by using horizontal initiative of his Majesty King Bhumibol Adulyadej. "Development of vetiver grass," he said. Doi Tung development project stemming from the initiative Chiang Rai province is planting vetiver a natural dam to prevent erosion of soil. Surface corrosion No soil erosion, sedimentation, filtration and flow to bring water, soil, and reduce the speed of the water. Allow the soil to absorb water better, which can be very successful to prevent soil loss and runoff page, wasted natural environment and make environmental recovery returned from space to be utilized.
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