Table 4 Results of stepwise multiple regression analyses to predict N2O concentration
From: N2O emission and its influencing factors in subtropical streams, China
Sampling season | Independent variables | Coefficient | Adjusted R2 | P value | |
|---|---|---|---|---|---|
Two Rivers | Whole year | w-NO3− | 0.28 | 0.08 | 0.04 |
DOC | 0.73 | 0.21 | 0.00 | ||
w-NH4+ | − 0.28 | 0.27 | 0.02 | ||
DOC/NO3− | − 0.46 | 0.33 | 0.03 | ||
High flow season | w-NO3− | 0.59 | 0.301 | 0.01 | |
Normal flow season | Temp | 0.65 | 0.39 | 0.00 | |
Low flow season | - | - | - | - | |
Jinshui River | Whole year | DOC/NO3− | − 0.53 | 0.25 | 0.01 |
High flow season | - | - | - | - | |
Normal flow season | - | - | - | - | |
Low flow season | - | - | - | - | |
Qi River | Whole year | w-NH4+ | − 0.44 | 0.16 | 0.02 |
High flow season | - | - | - | - | |
Normal flow season | - | - | - | - | |
Low flow season | - | - | - | - |