柴达木盆地典型风蚀区土壤质量评价
黄梦真, 鲁瑞洁, 赵瑾, 马罗

Assessment of soil quality in typical wind erosion area of Qaidam Basin
Mengzhen Huang, Ruijie Lu, Jin Zhao, Luo Ma
表3 主成分分析结果
Table 3 The results of principal component analysis
土壤指标主成分Norm公因子 方差分组
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容重-0.1590.837-0.1950.1310.0221.3160.7812
pH值0.0590.433-0.1870.5690.0451.0420.5524
碳酸钙0.486-0.043-0.1530.036-0.5281.0130.5425
有机质0.020-0.1100.978-0.0260.0421.4300.9723
全氮0.077-0.1240.9770.0040.0521.4350.9783
全磷-0.0560.013-0.0880.8530.0991.1600.7484
全钾0.0430.1890.0760.1110.8371.0750.7575
有效磷-0.008-0.0940.1680.823-0.0931.1440.7234
速效钾0.309-0.477-0.136-0.1270.6501.1930.7805
黏粒含量0.7330.010-0.023-0.0870.1911.1550.5811
粉粒含量0.763-0.5360.1400.077-0.1011.4420.9051
砂粒含量-0.929-0.050-0.115-0.0100.0411.4390.8801
砾石含量0.0680.865-0.036-0.0830.0521.3030.7642
特征值2.3582.2282.1021.7981.479
解释度18.13617.13516.17313.82711.375
累积解释度18.13635.27151.44465.27176.645