生物土壤结皮通过硝化-反硝化协同促进N2O排放的水热响应机制
杜晟仲, 辛春明, 秦慧君, 周静, 韩国君, 齐鹏

Biocrusts enhance N2O emissions through coupled nitrification-denitrification under temperature and moisture variability
Shengzhong Du, Chunming Xin, Huijun Qin, Jing Zhou, Guojun Han, Peng Qi
表1 温度、土壤类型、降水对N2O排放、累积排放通量的三因素方差分析
Table 1 Three-factor Analysis of variance of temperaturesoil type and precipitation on N2O emission and cumulative emission flux
影响因子因变量N2O排放通量N2O累积排放通量
自由度均方FP自由度均方FP
土壤类型总反应1271.89120.4550.000132 676.51312.0210.001
反硝化1140.22418.6050.000117 579.7829.1630.003
硝化121.81119.4940.00012 347.39318.9320.000
降水总反应1230.85317.3680.000126 348.3509.6930.002
反硝化1143.73319.0710.000116 720.3538.7150.004
硝化110.4189.3110.00311 108.0088.9360.003
温度总反应2171.35912.8920.000219 663.9167.2340.001
反硝化296.50712.8050.000211 340.0135.9100.003
硝化210.5919.4660.00021 132.2569.1320.000
土壤类型×降水总反应147.9313.6060.05017 195.7522.6470.106
反硝化115.0651.9990.15912 766.0991.4420.232
硝化19.1158.1470.00511 021.5598.2390.005
土壤类型×温度总反应250.2003.7770.02526 043.8452.2230.112
反硝化220.6512.7400.06822 642.5061.3770.255
硝化26.5545.8580.0042706.6765.6990.004
降水×温度总反应247.8463.6000.03025 954.5872.1910.115
反硝化222.6433.0040.05222 937.9681.5310.219
硝化24.7924.2830.0152540.4944.3590.014
土壤类型×降水×温度总反应29.3850.7060.49521 404.1140.5170.598
反硝化22.9530.3920.6772443.0170.2310.794
硝化23.7813.3790.0372428.9933.4600.034