第136回日本森林学会大会 発表検索
講演詳細
生理部門[Tree Physiology]
| 日付 | 2025年3月22日 |
|---|---|
| 開始時刻 | ポスター発表 |
| 会場名 | 学術交流会館（第一会議室） |
| 講演番号 | PG-23 （学生ポスター賞審査対象） |
| 発表題目 | Effects of stem heating on cambial growth of Cryptomeria japonica in a 50-year-old plantation in southwestern Japan Effects of stem heating on cambial growth of Cryptomeria japonica in a 50-year-old plantation in southwestern Japan |
| 所属 | 神戸大学 |
| 要旨本文 | Temperature plays a primary role affecting the rate of a tree's secondary growth at the beginning, middle, and end of the growing season. A stem heating experiment (2022–2023) was conducted on Cryptomeria japonica in Miyazaki Experimental Forest, Kyushu, Japan, using sixteen trees from four cultivars (Yaichi, Kumotoshi, Yabukuguri, and Measa) representing three growth types. Heated and control individuals were analyzed for anatomical traits such as cell area (A), diameter (D), and wall thickness (T) using HALO software and ANOVA. Growth rates and intra-annual density fluctuations (IADFs) were assessed using dendrometers and tracheidograms.Results show Yaichi (a fast-growing cultivar) exhibited greater sensitivity to heating, indicating a growth pattern which suggests extended and near-continuous cambial activity. These findings provide insights for selecting climate-resilient cultivars to sustain forests in a warming future. |
| 著者氏名 | ○Uchiyama, Christmas1 ・ Ishii, Hiroaki1 ・ Azuma, Wakana1 ・ Takagi, Masahiro2 ・ Enoki, Tsutomu3 ・ Ugawa, Shin4 ・ Nabeshima, Eri5 ・ Miyazaki, Yuko6 |
| 著者所属 | 1Kobe University ・ 2Miyazaki University ・ 3Kyushu University ・ 4Kagoshima University ・ 5Ehime University ・ 6Okayama University |
| キーワード | Cryptomeria japonica, stem heating, cambial growth, IADFs, inter-cultivar variation |
| Key word | Cryptomeria japonica, stem heating, cambial growth, IADFs, inter-cultivar variation |