FREE GIS SOFTWARE AND THEİR USAGE İN THE RİVER BASİN MANAGEMENT

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Watersheds, as a planning unit have different ecosystems going on the base ofsoil-water and plant relations. Variations of the balance between these ecosystemseffect water yield and soil stability and also other production of the watersheds. Geographic information technologies affected directly from developments in thecomputer software and hardware area in the last quarter century. Process being donewith traditional methods formerly, moving into digital environment and computerwas virtually laboratory of these area professionals. Thus the new era has startedthrough being made the process rapidly and easily that is time consuming or impossible to be done. We need free softwares most of the times, read this paper for the usages.

http://www2.dsi.gov.tr/english/congress2007/chapter_3/92.pdf