AN EVALUATION OF FARMING MEASURES TO REDUCE RED SOIL RUNOFF FOR LOCAL ENVIRONMENTAL CERTIFICATION ON CONSERVATION OF THE CORAL REEF ECOSYSTEM

Abstract

 In order to design of the local environmental certification system for coexisting sustainable industries with the coral reef ecosystem in Yaeyama district, various farming measures for reducing red soil runoff were evaluated on their sustainability and soil conservation. As a result, the ratooning was a recommended farming style for sugarcane that is sufficient as soil conservation and high sustainable farming. It is desirable to take at least one farming measure for the spring planting of sugarcane, and conducting the deep tillage or combine two or more farming measures are needed in the summer planting of sugarcane. In addition, it was also found that combining two or more measures are better for the cultivation of pineapple, vegetable and cut flowers.