西北荒漠区土壤氮素组分沿干旱梯度的空间变化
杭伟, 陆永兴, 郭浩, 郭星, 张世航, 张元明, 周晓兵

Spatial variation in soil nitrogen content along aridity gradients in the northwest desert region in China
Wei Hang, Yongxing Lu, Hao Guo, Xing Guo, Shihang Zhang, Yuanming Zhang, Xiaobing Zhou
表1 西北荒漠区氮素含量及土壤理化性质情况
Table 1 Nitrogen content and soil physicochemical properties in the Northwest Desert Region
深度 /cm参数平均值 /(mg·kg-1标准差 /(mg·kg-1变异系数 /(mg·kg-1最小值 /(mg·kg-1最大值 /(mg·kg-1pH电导率 /(μS·cm-1土壤含水率 /%
0~2TN43.2522.210.514.00108.005.9~9.131~5090.029~1.713
NH4+-N7.624.530.591.0029.00
NO3--N7.994.060.510.3522.23
IN15.386.120.401.4534.38
ON30.1720.710.692.0894.55
2~5TN50.9140.800.805.00222.005.7~9.523~440.029~11.889
NH4+-N9.7414.631.501.00107.00
NO3--N5.832.860.490.1013.23
IN15.0913.630.902.35116.03
ON38.1735.480.930.50203.15
5~10TN50.6541.590.827.00253.005.6~9.823~3840.053~13.161
NH4+-N7.658.021.051.0059.00
NO3--N5.903.150.530.1317.10
IN14.4915.191.052.6566.05
ON38.2234.660.910.08206.05