Sustainable river's performance and ecosystem's carrying capacity (the indices approach for rivers in South East Asia and Pacific Region)

The research is a continuing attempt since 1995, to define a sus­tainable river from its performance level or its ecosystem's carrying ca­ pacit. It exercises the data on 25 rivers provided b the UNESCO's CATALOGUE of RIVERS fr SOUTH EAST ASIA and THE PACIFIC RE­GION (1995). 3(Three) decision variables were chosen to define the river's performance, Often) were selected to define the ecosystem's caring capacity. A set of standards and criteria was statistically de­ rived which further base the weights of the indices.. A confirmation of its sensitivity beside being conducted to the origin 25 rivers was fur­ ther verified for 3 additional Indonesia's rivers provided b the same institution in gear 1998. Concurrently a further research to optimize land use to result a minimum run off coefficient has also been done to augment the use of the research's output, especially in the necessary circumstances facing the gears of water scarcity. The research's objective is to assist the river's managers to main­ tain a sustainable river, although at the present stage of its develop­ ment the qualitative aspects is disregarded due to the unavailability of data on the quality of the rivers' water