第136回日本森林学会大会 発表検索
講演詳細
経営部門[Forest Management]
| 日付 | 2025年3月21日 |
|---|---|
| 開始時刻 | ポスター発表 |
| 会場名 | 学術交流会館（ロビー） |
| 講演番号 | PD-24 （学生ポスター賞審査対象） |
| 発表題目 | Crown-based allometric models for estimating stem diameter and biomass in Japanese natural forests using UAV-LiDAR Crown-based allometric models for estimating stem diameter and biomass in Japanese natural forests using UAV-LiDAR |
| 所属 | Kyoto University |
| 要旨本文 | UAV-LiDAR has been used to assess tree biomass, primarily in plantation species. However, its application in diverse natural forests remains limited. This study evaluated the effectiveness of UAV-LiDAR in predicting stem diameter at breast height (DBH) and above-ground biomass (AGB) in species-rich natural forests of Japan. We analyzed 4355 individual trees representing 149 canopy species across 23 one-hectare temperate natural forest sites. Using UAV-derived crown height (H) and crown area (CA), we developed several crown-based allometric models. We show that H and CA together explain 68% variation in DBH and 71% in AGB across different forests and climatic regions. Incorporating functional type- or species-specific information further improved by 7-13%. The crown-based allometric models, especially when species identity is incorporated, can accurately estimate DBH and AGB in natural forests over larger areas dominated by various types of tree species. |
| 著者氏名 | ○HTOO, Kyaw Kyaw1 ・ ONISHI, Masanori1,2 ・ Farhadur, RAHMAN MD3 ・ TAKESHIGE, Ryuichi4 ・ KITAJIMA, Kaoru1 ・ ONODA, Yusuke1 |
| 著者所属 | 1Kyoto University ・ 2DeepForest Technologies ・ 3Bangabandhu Sheikh Mujibur Rahman Agricultural University ・ 4National Institute for Environmental Studies |
| キーワード | above-ground biomass, crown area, stem diameter, tree height, UAV-LiDAR |
| Key word | above-ground biomass, crown area, stem diameter, tree height, UAV-LiDAR |