Free Access
Table I
Calibration equations of the four Quercus species for each leaf stage and the three stages combined. The equations convert the CCI value into theestimated total chlorophyll content per unit area (mg cm−2).
| Species | Leaf stage | n | Equation | P | r 2 |
|---|---|---|---|---|---|
| Q. pyrenaica | Young leaves | 30 | Log(Chl) = –4.439 + 0.442 Log(CCI) | < 0.0001 | 0.58 |
| Fully expanded leaves | 30 | Log(Chl) = –1.286 + 0.818 Log(CCI) | < 0.0001 | 0.85 | |
| Mature leaves | 30 | Log(Chl) = –4.265 + 0.305 Log(CCI) | < 0.0001 | 0.77 | |
| All combined | 90 | Log(Chl) = –4.106 + 0.289 Log(CCI) | < 0.0001 | 0.56 | |
| Q. faginea | Young leaves | 30 | Log(Chl) = –4.852 + 0.503 Log(CCI) | < 0.0001 | 0.83 |
| Fully expanded leaves | 30 | Log(Chl) = –4.578 + 0.475 Log(CCI) | < 0.0001 | 0.77 | |
| Mature leaves | 30 | Log(Chl) = –4.269 + 0.360 Log(CCI) | < 0.0001 | 0.88 | |
| All combined | 90 | Log(Chl) = –4.679 + 0.482 Log(CCI) | < 0.0001 | 0.82 | |
| Q. suber | Young leaves | 30 | Log(Chl) = –5.453 + 0.699 Log(CCI) | < 0.0001 | 0.79 |
| Fully expanded leaves | 30 | Log(Chl) = –3.923 + 0.338 Log(CCI) | < 0.0001 | 0.66 | |
| Mature leaves | 30 | Log(Chl) = –3.720 + 0.304 Log(CCI) | < 0.0001 | 0.83 | |
| All combined | 90 | Log(Chl) = –3.880 + 0.315 Log(CCI) | < 0.0001 | 0.37 | |
| Q. ilex | Young leaves | 30 | Log(Chl) = –4.335 + 0.441 Log(CCI) | < 0.0001 | 0.60 |
| Fully expanded leaves | 30 | Log(Chl) = –0.581 + 0.709 Log(CCI) | < 0.0001 | 0.75 | |
| Mature leaves | 30 | Log(Chl) = –3.600 + 0.302 Log(CCI) | < 0.0001 | 0.48 | |
| All combined | 90 | Log(Chl) = –4.885 + 0.617 Log(CCI) | < 0.0001 | 0.73 |