Table 2 Effects of rainfall amount and frequency and soil depth on soil inorganic nitrogen.

From: Effects of rainfall amount and frequencies on soil net nitrogen mineralization in Gahai wet meadow in the Qinghai-Tibetan Plateau

Sources of variation

df

NH4+–N

NO3-–N

Min–N

F

P

F

P

F

P

Treatments

4

39.017

 < 0.01

12.153

 < 0.01

19.797

 < 0.01

Soil depth

1

12.363

 < 0.05

0.320

0.578

4.639

0.045

Treatments × soil depth

4

27.917

 < 0.01

7.664

 < 0.01

9.330

 < 0.01

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