黄河口滨岸潮滩湿地土壤碳、氮的空间分异特征

牟晓杰, 孙志高, 刘兴土

Spatial Distribution Patterns of Carbon and Nitrogen in the Tidal Marsh Soil of the Yellow River Estuary

Xiao-jie MOU, Zhi-gao SUN, Xing-tu LIU

表4 两个分区不同土层理化性质对比

Table 4 Comparison of physical and chemical properties of different soil layers in the two sub-areas (means ±S.D)

样区 土层(cm) 容重 (g/cm3) 含水量 （cm3/cm3） 电导率 (mS/cm) pH NH4+-N (mg/kg) NO3--N (mg/kg) TC (%) TN (mg/kg) C/N Ⅰ区(n=56) 0-10 1.30±0.01 0.428±0.012 11.52±2.29 7.75±0.06 11.88±4.61 3.76±1.39 2.31±0.28 820.54±184.00 29.36±6.11 10-20 1.38±0.02 0.440±0.011 9.83±0.94 7.68±0.05 13.48±6.09 4.07±1.85 2.32±0.19 655.16±99.86 35.91±3.86 Ⅱ区(n=24) 0-10 1.47±0.02 0.467±0.009 7.85±0.75 8.30±0.16 10.31±8.10 3.32±1.46 2.00±0.39 565.06±188.37 37.65±8.05 10-20 1.52±0.01 0.451±0.011 6.96±0.84 8.28±0.12 12.24±2.00 4.52±1.39 2.20±0.32 575.64±145.22 39.77±7.81