نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم و مهندسی آب، دانشگاه بین المللی امام خمینی، قزوین
2 دانشیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه بین المللی امام خمینی(ره)، قزوین، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this study, the energy footprints of the surface, drip, and sprinkler irrigation systems were investigated. In this regard, the water requirements of 15 different crops were considered in Alborz province. The data of the wells of Alborz province, the data of the ground water level of the observation wells located in the Alborz plain in the statistical period of 2019 were collected from the regional water authority of Alborz province. The water table and dynamic level of 11 wells were checked and calculated.. The required electric power to pump the water on the ground was then calculated. Taking both static and dynamic water levels, the electric energy required for different irrigation systems was calculated according to the net water requirement and consumed energy of the water losses. Also, taking three scenarios for the return flow to the aquifer and irrigation non-useful losses, the return flow to the aquifer and the associated energy footprint were calculated for both static and dynamic groundwater levels. Results indicated that the highest energy loss is related to surface irrigation and the lowest amount is related to drip irrigation.the irrigation useful losses calculated using the dynamic water level were always higher than that calculated by the static water level. For example, the amount of useful irrigation losses of the dynamic and static water levels of alfalfa crops (40% of the useful losses of drip irrigation) is about 15 and 11 (m3/ha), respectively. Also, the highest and the least irrigation useful losses were obtained for horticultural and summer crops respectively. The highest amount of losses in horticultural crops, agricultural crops and vegetable crops is related to walnut, alfalfa and onion, respectively, and the lowest losses in horticultural crops, agricultural crops and vegetable crops is related to grape, barley and spring cucumber, respectively.
کلیدواژهها [English]
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