| Autor: |
Ito, Kazuki, Ota, Tetsuji, Mizoue, Nobuya, Yoshida, Shigejiro, Sakuta, Kotaro, Inoue, Akio, Ito, Satoshi, Okada, Hiroyuki |
| Zdroj: |
Journal of Forest Research; March 2017, Vol. 22 Issue: 2 p126-130, 5p |
| Abstrakt: |
ABSTRACTWe quantified the differences in growth responses between Cryptomeria japonicaand Chamaecyparis obtusatrees in approximately 0.1-ha group selection openings in southern Japan. We measured the position, height (H), and diameter at ground level (D) of 6- and 13-year-old C. japonicaand C. obtusatrees that were planted in two respective openings. The annual Hand Dgrowth of C. japonicaincreased until trees were 10 and 8 m, respectively, distant from the nearest edge of the opening. For C. obtusa, the annual Hand Dgrowth increased slightly until the trees were 6 m distant from the nearest edge, but they did not significantly differ between 6 and 18 m distant from the nearest edge. While the shortest distance from the edge explained 63% and 50% of the variationsal Hand Dgrowth, respectively, of C. obtusa. Our result demonstrates that C. obtusais less sensitive to edge effects than C. japonica. We conclude that C. obtusais likely to be more suitable than C. japonicafor planting within 0.1-ha group openings, as it will result in faster early stage growth, with less variation, within the openings. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
