Table 6.
The comparison of calculated and observed extinction coefficients. F = leaf area index, K = extinction coefficient
|
K |
||||||||
|---|---|---|---|---|---|---|---|---|
| Dominant species |
Date |
Site |
Sample area |
F |
Leaf angle |
Observed |
Calculated |
|
| Sasa nipponica | 29 Aug. 1951 | Kirigamine montane meadow | (1 m)2 | 4·4 | 35° (directly measured) | 0·75 | 0·87 | |
| Miscanthus sacchariflorus | 19 May 1952 | Tazima meadow | (0·5 m)2 × 3 | 3·6 | 60° (photographically determined) | 0·50 | 0·64 | |
| Euphorbia adenochlora | 5 May 1951 | Tazima meadow | (0·5 m)2 | 4·3 | 10° (estimated) | 0·92 | 0·98 | |
| Helianthus tuberosus | 12 Sept. 1952 | Koisikawa Botanical Garden | (1 m)2 | 4·9 | 30° (photographically determined) | 0·75 | 0·90 | |
| Osmunda cinnamomea | 5 Aug. 1951 | Oze moor | (1·5 m)2 | 2·9 | 60° (photographically determined) | 1·24 | 0·64 | |