有机物料还田对土壤导水导气性的综合影响

赵丽丽,李陆生,蔡焕杰,石小虎,薛少平

Comprehensive Effects of Organic Materials Incorporation on Soil Hydraulic Conductivity and Air Permeability

ZHAO LiLi,LI LuSheng,CAI HuanJie,SHI XiaoHu,XUE ShaoPing

表1 播前0—30 cm土层土壤基本理化性质

Table 1 Initial physio-chemical characteristics of the 0—30 cm soil layers in the experimental field under investigation

土壤性质 Soil parameters 土层 Depth (cm) 0—10 10—20 20—30 土壤质地 Soil texture 黏壤土 Clay loam 黏壤土 Clay loam 粉砂质黏壤土 Silty clay loam 砂粒 Sand (0.02—2 mm) 38.24 36.65 30.51 粉粒 Silt (0.002—0.02 mm) 43.80 44.22 46.71 黏粒 Clay (<0.002 mm) 17.96 19.12 22.78 容重 Bulk density (g·cm-3) 1.32 1.44 1.68 有机质Organic matter (g·kg-1) 15.09 13.87 12.53 有效氮Available N (mg·kg-1) 28.37 22.53 19.85 有效磷Available P (mg·kg-1) 16.25 14.83 10.67 有效钾Available K (mg·kg-1) 143.2 138.5 132.0 pH 8.56 8.57 8.55