EVALUATION OF HABITAT FOR ECOSYSTEM IN IRIOMOTE ISLAND USING GIS AND REMOTE SENSING

摘要

The total ecosystem of land and ocean spaces was evaluated with GIS and remote sensing. The objective area was Iriomote Island in Okinawa Prefecture. Target areas were the land of the island and the coral reef of its circumference ocean space. The satellite data were the JERS-1 and ASTER. The digital map 25,000 and the digital elevation model with a 50-m grid were used. The habitat of index animals was extracted from the satellite data with GIS, and then the ecosystem of the land was evaluated. The Iriomote cat and the crested serpent eagle were for the index animal. The degree of cover for coral reef was also identified for evaluation of its habitat.