Determination of suitable areas for organic production in Kelkit basin and mapping by geographical information systems

Kelkit Basin contains 17 districts within the boundaries of Tokat, Amasya, Gümü?hane, Giresun, and Sivas provinces. The is located in Middle Black Sea Region Anatolia, at 40.9968 North, 30.8491 East, 36.0482 South, 36.6943 West coordinates. total area basin 16.244,45 hectares. altitude surrounded by high mountains ranged from 200 m (base valley) to 1200 (high plain). height gradually increased west east until 2400 m. There not any major industry establishment limiting level organic agriculture basin. main livelihood people region agriculture. Our study aimed determine mapping suitable areas for For this purpose, land surveys were conducted, point data collected with GPS 1230-point value are calculated. On calculation value, Land Use Capability, pollution situation, erosion risk groups, soil groups used as criteria. In line regulation farming practices, amount pollution; intense agricultural activity, impact roads, settlement influence, water resources, effects pollution, industrial-mining taken into account. By using these calculated values, maps created program ArcGIS (9.3) analysis IDW (Inverse Distance Weighted). According generated maps, potential was put forward.