A spatial economic model of the Ciliwung Watershed, in the western part of Java, Indonesia

This study aimed to map out the spatial economic structure of the Ciliwung Watershed and to analyze its spatial economic value. The research method used was survey method using a sampling method of Multi-Stage Sampling. The economic values were analyzed by prospective analysis, valuation of use value and non-use value, and dynamic system approach. While economic activities in the upstream and midstream areas of the Ciliwung Watershed are dominated by the primary sectors, economic activities in the downstream areas of the Ciliwung Watershed are dominated by the secondary sectors. The analysis results showed that the economic value of the upstream area of the Ciliwung Watershed was 17,467.61 million US$, of the midstream area of the Ciliwung Watershed 29,227.39 million US$ and of the downstream area of the Ciliwung Watershed 41,720.43 million US$. The per capita income of the upstream area of the Ciliwung Watershed was 0.00169 year-1 million US$, and it would increase until 113% in the next 30 years; of the midstream area of the Ciliwung Watershed was 0.00154 year-1 million US$ and it would increase until 105% in the next 30 years; and of downstream area of the Ciliwung Watershed was 0.01382 year-1 million US$ and it would increase until 104% in the next 30 years. Integrated management is intended as an action that affects all dimensions that have important attributes for the sustainability of watershed management.