Table 1 Comparison of regression line coefficients of the relationship between fine root length and soil temperatures according to different diameter sub-classes (classical and new). Data refer to three soil depths between April and November 2008
Soil depth (cm) | Classical sub-class (mm) | R 2 | P | New sub-class (mm) | R 2 | P |
|---|---|---|---|---|---|---|
0–10 | 0.0–0.5 | .230 | .035 | 0.0–0.3 | .260 | .021 |
0.5–1.0 | .030 | .826 | 0.3–1.0 | .520 | .331 | |
1.0–2.0 | .030 | .489 | 1.0–2.0 | .030 | .489 | |
10–20 | 0.0–0.5 | .120 | .329 | 0.0–0.3 | .250 | .020 |
0.5–1.0 | .120 | .329 | 0.3–1.0 | .130 | .114 | |
1.0–2.0 | .005 | .348 | 1.0–2.0 | .005 | .348 | |
20–30 | 0.0–0.5 | .150 | .080 | 0.0–0.3 | .220 | .031 |
0.5–1.0 | .190 | .145 | 0.3–1.0 | .012 | .314 | |
1.0–2.0 | .110 | .345 | 1.0–2.0 | .110 | .345 |