The Effect of Plug Height and Inflow Rate on Water Flow Characteristics in Furrow Irrigation

Despite its wide application across arid land types, furrow irrigation is often associated with numerous environmental problems related to deep percolation, runoff, and soil erosion. In this study, a straightforward approach was proposed achieve higher uniformity reduce Here, the impacts that moveable “plug” has on behavior of water in were simulated using FLOW-3D HYDRUS-2D, where three plug heights two flow rates set. The effect inflow rate height advance, level, cumulative infiltration furrow, coefficient determined. Results indicate able slow velocity by approximately 60% increase advance time 3–4 times; level increased nearly 10 cm compared no plug. Moreover, an range 90.18–99.22% plugging. addition practices for smallholder farmers developing countries demonstrates great potential reducing probability erosion under large slopes can effectively improve uniformity.