Spatial Based Economic Valuation of Coastal Area in Bontang

Coastal areas have an important role in economic development. Development activities carried out on land and at sea can put pressure ecosystems coastal areas, thereby reducing the quality of ecosystem services provided. Understanding impact development requires assessment order to provide input formulation sustainable policies. This article aims estimate value based spatial. The valuation method used is benefit transfer method, travel cost replacement method. Mapping spatial using Geographic Information System (GIS). area divided into 3 zones, namely zone 1, northern part Bontang River estuary, amounting IDR 21,85 trillion/year; 2, between estuary Blusu 48,20 3, southern 45,67 trillion/year. obtained explain lost due disturbances more specifically clearly certain zones.