腾格里沙漠东南缘猪毛菜( Salsola collina )根系构型特征比较
楼科尔, 曲文杰, 王磊, 王兴, 郜永贵, 杨新国

Comparison of root architecture characteristics of Salsola collina in the southeast edge of Tengger Desert
Keer Lou, Wenjie Qu, Lei Wang, Xing Wang, Yonggui Gao, Xinguo Yang
表1 不同地表条件下表层土壤理化性质
Table 1 Physical and chemical properties of surface soil under different surface conditions
土壤理化 性质地表条件
流沙藻结皮藓结皮
深度/cm0~22~55~1010~2020~300~22~55~1010~2020~300~22~55~1010~2020~30
含水率/%0.20.70.61.02.00.30.30.81.41.20.60.40.30.60.6
全氮/(g·kg-1)0.360.240.230.210.240.460.260.240.210.201.550.600.460.380.35
全钾/(g·kg-1)11.7411.8911.9712.3311.4713.1412.4213.6811.7614.1512.9913.1812.9912.5213.10
全磷/(g·kg-1)0.410.340.370.700.370.270.270.350.280.370.430.380.320.280.26
速效钾/(g·kg-1)88.0591.0792.889.3690.50198.54179.33158.62147.46118.58255.01203.17162.37151.83145.95
碱解氮/(mg·kg-1)0.940.730.800.620.846.673.513.522.921.9826.5410.395.863.783.32
有效磷/(mg·kg-1)5.342.373.451.144.747.727.785.302.482.759.519.195.283.293.44
有机质/(g·kg-110.456.974.509.124.7728.069.415.617.735.3886.6020.869.676.867.65
黏粒/%0.00.00.00.00.00.00.00.00.00.00.60.00.00.00.0
粉粒/%0.10.10.00.00.04.03.21.61.61.315.68.610.57.45.2
砂粒/%99.9100.0100.0100.0100.096.096.898.498.498.783.891.489.592.694.8