Water from rainfall or sprinkler irrigation is partitioned into four components as it passes through the crop canopy: stemflow, throughfall, interception storage and in鄄canopy evaporation. The crop canopy significantly changes the distribution of rain water and irrigation water in the canopy and topsoil, thus potentially causing uneven distribution of surface soil water content and altering water use efficiency. The objective of this experiment was to measure throughfall, stemflow, and interception storage at different times during the maize (Zea mays L.) growing season. Throughfall and stemflow were measured indoors during simulated rainfall events. The spray method was used to measure the interception storage of maize canopies with different leaf area index (LAI). The effects of LAI and rainfall intensity on throughfall, stemflow, and interception storage were analyzed and the spatial distribution of throughfall was clarified. The results showed
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