ABSTRACT
Population increase and socioeconomic rise of developing countries in many parts of the world has escalated the water demands in agricultural, municipal, recreational, and industrial sectors. Increase in those demands in the past decades put severe stresses on the available water resources across the world, particularly
in arid and semi-arid regions [6]. Based on the recent studies by the United Nations [23], around one-h of world’s population have been already aected by water scarcity and they do not have sucient water resources to meet their needs. In addition, about one-quarter of the world’s population is facing economic water deciency due to lack of necessary hydro-structure to transfer water from sources (e.g., river, lake, and aquifer) and provide
65.1 Introduction .............................................................................................................................853 65.2 Irrigation Eciency ................................................................................................................ 854
Classical Irrigation Eciency • Neoclassical Irrigation Eciency 65.3 Misunderstanding of FAO’s Recommendation ..................................................................857 65.4 Multiplier Eect in Zayandeh Rud Basin: Case Study .......................................................858
