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The entire land of Southern Iran faces problems arising out of various types of land degradation of which vegetation degradationforms one of the major types. The present work introduces a model developed for assessing the current statusof hazard of vegetation degradation using Geographic Information System (GIS). This kind of assessment differs fromthose assessments based on vulnerability or potential hazard assessments. The Sadra watershed which covers the upperreaches of Marharlu basin, Fars Province, has been chosen for a hazard assessment of this type of degradation. The differentkinds of data for indicators of current status of vegetation degradation were gathered from collecting of field dataand also records of the governmental offices of Iran. Taking into consideration three indicators of current status of vegetationdegradation the model identifies areas with different hazard classes. By fixing the thresholds of severity classes ofthe three indicators including per cent of vegetation cover, biomass production and ratio of actual biomass to potentialbiomass production, a hazard map for each indicator was first prepared in GIS. The final hazard map of current status ofvegetation degradation was prepared by intersecting three hazards in the GIS. Results show areas under severe hazardclass have been found to be widespread (89 %) while areas under moderate and very severe hazard classes have beenfound less extensive in the Sadra watershed. The preparation of hazard maps based on the GIS analysis of these indicatorswill be helpful for prioritizing the areas to initiate remedial measures

HAZARD ASSESSMENT OF CURRENT STATE OF VEGETATION DEGRADATION USING GIS, A CASE STUDY: SADRA REGION, IRAN