Abstract
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 social marketing research using the internet of watershed management for the support system as follows, 1) the interest for the crisis of the coral reef at Yaeyama Islands, 2) the intention to offer a fund for preservation of the coral reef, 3) the linkage of the tourism and the preservation of coral reef.
