USE OF GIS TO PRODUCE SUITABILITY DIGITAL MAPS FOR THE AREA OF EAST SAADIA FOR BARLEY CULTIVATION.

Abstract

This study was carried out to determining suitable of climate and soilfactors for growing Barley in area of east Saadia that located between latitudes33o 52 and 33o 13 north and longitudes 45o and 45o 10 east and is bordered tothe north city of Jalawla and west city Saadia and eastward public road leadingto the Khanaqin and south Hemrin mountain range. All operations wereperformed for evaluation of climate and soil factors using a special worksheetfrom FAO carried out using MS Excel to connect the results with soil units. TheExcel file can be used this to make a style suitability evaluation of a set ofimportant data. And by using ArcGIS was built and correct spatial databasesand metadata and linked some to create a database of the study area is ready forprocess analysis (as selected land characteristics LC and the requirements of field crops CR) within the assessment and classification of current and futuresuitability of climate and soil factors to growth Barley, then export the resultsto ArcGIS program for producing digital maps and calculate the area of eachclass of suitability, as well as use other software such as DEM program forslope calculate. The results of the evaluation showed high suitability S1 ofclimate factors to Barley cultivation. The study found suitable land for thecultivation of this crop is below the level of agriculture and basin furrowirrigation showed very suitable for the cultivation of Barley S1 (7712) hectarespercentage 34.75%, moderately suitable S2 (8568) hectares percentage 38.61%,marginally suitable S3 (3021) hectares, percentage 13.61%, currently unsuitableN1 (3613) hectares, percentage 16.28%. While below High level ofmanagement with full mechanization recorded, S1 (13367) hectares percentage60.23%, moderately suitable S2 (7892) hectares percentage 35.56%, marginallysuitable S3 (3021) hectares, percentage 13.61%, currently unsuitable N1 (1635)hectares, percentage 7.37 % respectively.