Table 1.
Tree nitrogen content and isotope ratios by tissue type and mean
Number | Percent nitrogen | δ15N | |||
---|---|---|---|---|---|
Mean | SD | Mean | SD | ||
Boles in soil | 19 | 0.47 | 0.07 | −2.93 | 1.52 |
Boles in pit | 19 | 0.49 | 0.09 | −4.37 | 1.37 |
Branches in soil | 19 | 0.58 | 0.08 | −3.30 | 1.69 |
Branches in pit | 19 | 0.58 | 0.08 | −4.69 | 1.34 |
Needles in soil | 1.22 | 0.15 | −2.09 | 1.61 | |
Needles in pit | 19 | 1.25 | 0.19 | −3.42 | 1.32 |
Roots in soil | 19 | 0.32 | 0.13 | −1.04 | 1.30 |
Roots in pit | 19 | 0.25 | 0.08 | −1.69 | 0.94 |
Forest mean | 19 | 0.65 | 0.11 | −2.34 | 1.53 |
Pit mean | 0.64 | 0.11 | −3.54 | 1.24 |