evaluation of temporal variation of soil water infiltration coefficients in furrow irrigation

نویسندگان

غزاله ضیایی

کارشناس ارشد آبیاری و زهکشی فریبرز عباسی

موسسه تحقیقات فنی و مهندسی کشاورزی حسین بابازاده

دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران فریدون کاوه

دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

چکیده

recognition of soil water infiltration process is essential for improving irrigation efficiency, decreasing water losses and management of surface runoff. the aim of this research was to evaluate temporal variation of the kostiakove-louise infiltration coefficient parameters during a corn growing season. in this research, 16 irrigation events for 8 large scale furrow experiments were analyzed by the volume balance method for evaluating the kostiakove-louise infiltration parameters. the length of the experimental furrows used for this study were 120 meters. the results indicated that temporal variation of the kostiakove-lewise parameters during the growing season were not meaningful and possible error was less than 5%.

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