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An estuary area is a typical ecosystem where a vast array of fish breed to enlarge populations. These regions are made productive by organic material in the form of foodstuff, while receiving sunlight sufficient enough to illuminate the brackish waters. These zones must be protected due to their fertile waters and surrounding fertile land. Estuary areas are threatened by nearby landfill and waste debris along and upstream of the river, which consequently contaminate the estuary zone. Socio-economic conditions of the community also affect the sustainability of the estuary. In this case, the Socio-Economic Spatial Model, based on Geographical Information System (GIS) and trade off analysis, were used to elaborate the ecosystem sustainability in the Cimandiri estuary, West Java. This research also uses the temporal analysis of land use change upstream and monitors the community activity around the estuary. The research showed a change in the spatial and temporal land use consequently altering the watershed and the socio-economic analysis showed the community use of the estuary as unsustainable for the region and ecosystems within.

SOCIO-ECONOMIC SPATIAL FOR THE SUSTAINABILITY OF THE ESTUARY ECOSYSTEM IN PELABUHANRATU COASTAL WEST JAVA