نوع مقاله : مقاله پژوهشی
نویسنده
عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان زنجان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
Water exploitation methods, especially for surface water such as rivers, are varied so that every method has its special specifications and the assessment of these methods for different river conditions has an effective role in optimizing the exploitation method. Results of this research showed that, under the conditions where no water resource restrictions existed, diversion dams are more economical in comparison to other methods and are superior to other structures considering that diversion dams have a simple form and farmers are more familiar with them. Pumpage under the conditions where the high flow river sediments deepen, and riverbeds widen, diversion dams are not economical, so that the best method, and in some areas, the only method is the pompage method. Considering the restricted flow of tributaries Qezel Ozen and Rudshor in irrigation periods and geomorphological situation, small earth dams turn out to be suitable constructions, especially in some areas where the only way to control the surface water of tributary is by constructing diversion and proper distribution systems where they can provide enough water for small areas. According to the comparison of cost per unit of water and cost of construction for different methods of water supply, there is no significant correlation between water supply and its cost, and many other natural factors such as discharge of the river, the position of construction, and the situation of agricultural farms are important.
کلیدواژهها [English]
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