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1 试验田不同深度土壤类型与干容重

Table 1 Soil types and dry bulk density at different depths of the experiment field

深度/cm <0.002mm黏粒 0.002~0.050mm粉粒 >0.050mm砂粒 土壤类型 干容重/(g/cm3) 0~40 2.39 90.27 7.34 粉土 1.31 40~120 1.73 92.05 6.22 粉土 1.49 120~140 0.46 42.05 57.49 砂质壤土 1.53 140~160 0.16 19.27 80.57 壤质砂土 1.32 160~180 0.00 10.98 89.02 砂土 1.29 180~200 0.02 13.28 86.70 砂土 1.36 200~260 0.00 15.34 84.66 壤质砂土 1.32