抄録
The soil erosion at farmland becomes serious impact on the ecosystem in the coral reef in Okinawa district. In order to solve these problems, it is necessary to build a support system for the integration of the measures in a river basin. This paper examines the possibility of watershed management for the support system as follows, 1) the possibility of watershed management in Ishigaki Island, 2) the evaluation of elements of the fund system for preservation of coral reef, 3) the approach of proposal and embodiment of the study for watershed management.
