Rangeland EcohydrologyConcept and Importance

Nowadays, studying intractions between hydrological components and different ecosystems named as ecohydrology has been considered by specilaists and experts. Towards this, ecohydrological studies in rangeland ecosystems are very important due to spatial extension in global and national scales. However, it has not been consered yet. The present study has therefore attempted to present a state of art of the rangeland ecohydrology by revieweing avaialbe literatures and accssible documents. Accordingly, the importantant hydrological components viz. precipitation, evapotranspiration, runoff, sediment, soil erosion and groundwater recharge were considered in comparison with other ecosystems and corresponding conlusion was ultimately drawn.