|
|
:
|
Preparing and completing location information about the characteristics of catchments need research and implementation of our country.Information is scattered in the country so now itneeds to review and update data.In the project of the Iran watershed Atlas,all data concluded land-use, geology, land resources, rain erosivity, flooding , flood damages, base maps and data of the suspended sedimentation of the hydrometric stations for each the basinrevised and completed.Thus, these maps were produced for 7rd order basins and then were corrected.The main outputs such as the sensitivity of the rock units, flood intensity, flood risks, sediment yield, rate of erosionand land use was obtained for the 7rd order basins. According to these studies which obtained a summary of the basin status. Map ofultimate prioritywatershed operationsas aninformationlayerlaidonit.Tableextractedfrom each of ranking7 watershedintheArcGISenvironmentwas attachedtothepolygon.Finally,an appropriateoutputformat orLayoutforaLevel7 watershed, respectively.Key words: Spatial information, sensitivity of the rock units, flooding, soil erosion, land use, the 7rd order basins
|