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The document discusses land classification for irrigation in Iran. It divides land into six classes based on suitability for irrigation. Class I land is most suitable while Class VI land is unsuitable. It notes Classes IV-VI, comprising 40.5% of surveyed land, have severe limitations. Class IV land can be used with special conditions, while Class V land requires substantial improvement. Class VI land is considered non-arable under current conditions. It then outlines 10 agro-ecological zones in Iran based o

Author

vahid

Language

EN