Analysis of the spatial scale effect of irrigation return flow in irrigated area

YITONG WANG; ZONGLOU GUO; DINGWANG ZHOU; YANG YANG

doi:10.13031/aim.201700457

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Analysis of the spatial scale effect of irrigation return flow in irrigated area

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2017 ASABE Annual International Meeting 1700457.(doi:10.13031/aim.201700457)
Authors:   YITONG WANG, ZONGLOU GUO, DINGWANG ZHOU, YANG YANG
Keywords:   Click here to enter keywords and key phrases, separated by commas, with a period at the end

Abstract. Studies of water cycle in irrigation systems show that irrigation return flow is the main reason of agricultural non-point source pollution, and the proportion of return flow is high enough to affect the water cycle process in the irrigation district. However, traditional water efficiency statistics index such as effective coefficient of irrigative water utilization just ignore the effect of return water, this ignorance leads to the underestimation of water efficiency and the overestimation of water-saving potential.

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