Sensitivity Analysis of Border Irrigation Performance to Micro Topography and Border Width Variability

Based on the border irrigation experiment, the spatial distribution of micro-topography and border width along the border are studied, the sensibility of border irrigation performance to the spatial distribution is analyzed. The results indicates that the variation degree of micro-topography and border width is weak, the distribution uniformity and application efficiency decrease with the increase of S
_d
and S
_w
. The sensibility of border irrigation performance to spatial variability of micro-topography and border width is notable, and the border width is the main one. Therefore, the spatial distribution of micro-topography and border width is not ignored when making irrigation scheme.