TABLE 2.
Changes in C/N ratios and net nitrogen mineralization rates across transect locationsa
Location | Lookout
|
Carpenter
|
||||
---|---|---|---|---|---|---|
Mean C/N (SEM) | Mean net Nmin (SEM)
|
C/N (SEM) | Mean net Nmin (SEM)
|
|||
June | Nov | June | Nov | |||
M | 12.6 (0.7)A | 2.1 (1.2)A | 2.3 (0.3)A | 13.5 (1.0)A | 2.3 (0.6)A | 1.2 (0.3)A |
M/F | 12.8 (1.0)A | 1.5 (0.5)A | 0.8 (0.7)B | 14.8 (1.7)AB | 2.2 (0.4)A | 1.4 (0.5)A |
F/M | 16.1 (3.8)AB | 0.7 (0.3)A | 0.2 (0.2)B | 19.9 (3.4)BC | 0.6 (0.3)B | 0.3 (0.2)B |
F | 15.6 (1.7)B | 1.0 (0.5)A | 0.3 (0.1)B | 23.7 (2.0)C | 0.4 (0.3)B | 0.1 (0.1)B |
Location symbols are defined in Materials and Methods. Net nitrogen mineralization rates (Nmin) were measured over 10 days of incubation and are given in micrograms of N g of soil−1 day−1. Means in columns followed by the same superscript capital letter are not significantly different at P = 0.05. Nov, November.