干旱区滴灌水盐调控改良重度盐碱地棉田的包气带水分运移分析

周田田, 韩冬梅, 宋献方, 马英, 张应华

Water movement through unsaturated zones in the severe saline-alkali cotton fields in inland arid regions underwater and salt regulation by drip irrigation

Tiantian ZHOU, Dongmei HAN, Xianfang SONG, Ying MA, Yinghua ZHANG

表2 棉花生育期内试验田不同深度土水势梯度的统计特征

Table 2 Statistical characteristics of soil water potential gradients at different depths of the experiment field during cotton growth seasons

深度/cm 最大值 最小值 平均值 标准差 100~120 2.58 -4.85 -2.22 1.38 120~150 0.76 -1.97 -0.15 0.36 150~180 4.53 -0.04 0.60 0.75 180~220 0.79 -2.17 -0.12 0.38 220~260 0.63 -0.47 0.02 0.13