Abstract

Advances in irrigation technology have resulted in the need to review existing methods of evaluating the suitability of land for irrigated agriculture. Previous irrigation classification systems were based largely on criteria relevant to flood methods of irrigation. This paper describes the principles and criteria of a revised method of classifying land suitability for irrigation. This revised classification scheme can provide initial assessments of the feasibility of installing either flood (gravity) or sprinkler systems.The new methodology focuses on interpreting the suitability of land for irrigation utilizing soil and landscape data made available through regular soil survey programs. Guidelines are provided to facilitate the ranking of soil and landscape attributes in terms of their degree of limitation for irrigation. Land with no significant limitation(s) for soils and/or landscapes receives an excellent rating; land with slight limitation(s) for soils and/or landscapes is rated as good; land with ...

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