نوع مقاله : مقاله پژوهشی
نویسندگان
1 عضو هیات علمی بخش تحقیقات آبیاری و زهکشی موسسه تحقیقات فنی و مهندسی کشاورزی
2 استادیار موسسه تحقیقات فنی مهندسی و کشاورزی کرج
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Considering the limitation of water resources and the need to increase water productivity in the production of agricultural products, the development of new irrigation systems has been one of the most important policies and activities of the agricultural water sector in recent decades. The purpose of this research is to quantitatively investigate the development of pressurized irrigation development in Iran and compare it with other countries and regions of the world using the pressurized irrigation development index, and finally the estimation of the optimal and expected level of its development for the country. According to the results, the PDI index until the end of the sixth development program (2020) is 21.4%, which is low compared to other 23 selected countries. Using the multivariable correlation method between the values of the variables affecting water management such as per capita withdrawal, the share of withdrawal from water resources in the agricultural sector, the area of irrigated lands, and the PDI index of 14 selected countries and applying values like for the Iran country, the desired and expected level of pressurized irrigation in the country was estimated at 49.2%. In other words, in the coming years it is possible to reduce the negative and undesirable effects of the unbalanced development of modern systems on water resources and the environment, and prevent the occurrence of the phenomenon of "rebound effect", in a favorable and potential way, up to half of the irrigated lands in the country should be equipped with pressurized irrigation systems. Meanwhile, according to the latest statistics, until the beginnings of 2023, the PDI has reached to 30% (2.9 million hectares). Therefore, there is still room for further development in terms of the necessary arrangements and under the condition of creating infrastructures, and necessary control rules and regulations by the related organizations.
کلیدواژهها [English]
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