عنوان مقاله [English]
In the last two decades there has been an increasing interest in the concept of agricultural sustainability. Philosophical, theoretical and practical aspects, primarily environmental concerns, have been extensively developed in agronomic and economic forums. The important concern now is how to use sustainability as an operational criterion in the management of agricultural system. This paper presents a new modeling framework which uses quantified sustainability criteria in an optimization model. Fractional programming is presented as a tool for studying the sustainability of agricultural system. The essentials of the technique in both the single and the multi- objective cases are outlined.