河西走廊中部荒漠砾幂特征及其对土壤水分入渗的影响
王德金, 赵文智, 周宏

Characteristics of desert pavement and its influence on water infiltration in the middle of the Hexi Corridor
Dejin Wang, Wenzhi Zhao, Hong Zhou
表2 砾幂及其下方土壤剖面的物理参数
Table 2 Physical parameters of desert pavement and its lower soil profile
指标土层位置样地1样地2样地3样地4样地5
厚度/ cm砾幂0.39±0.030.48±0.010.54±0.020.61±0.030.44±0.03
砾石覆盖度/ %砾幂76.58±5.0547.29±4.4752.86±2.8438.44±6.1648.34±5.33
砾石粒径/ mm砾幂4.63±0.0.195.18±0.254.77±0.274.30±0.194.19±0.22
质量含水量/ %砾幂0.53±0.100.24±0.030.22±0.030.23±0.040.28±0.03
土壤剖面2.16±0.261.74±0.121.62±0.252.30±0.281.88±0.12
砾石含量/ %砾幂30.61±3.4931.37±1.9241.94±2.6849.90±6.6854.37±3.37
土壤剖面18.60±1.9518.40±1.6420.93±1.838.97±1.3015.66±3.18
土壤容重/ (g·cm-3)表层1.73±0.021.58±0.021.76±0.031.69±0.031.80±0.05
下层1.65±0.021.62±0.021.65±0.021.58±0.041.72±0.02