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＜紀要論文＞
里山保全管理後の25年間の自生ツツジ類を含む林床における種多様性の動態からみた適正管理周期の設定
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| 概要 | This paper compared vegetation structure of the forest between those which did not have management for 50 years and those which had management 25 years ago for conserving flowers of wild Rhododendrons... in the secondary forest floor of Hyo go prefecture in Japan. As a result of the analysis, the number of the plant classes in a managed ward grew to 42 species, and 19 of 29 species of trees were deciduous broad-leaved trees including Rhododendron reticulatum which does not have a flower. In addition, 13 species of herbs were able to be identified at the managed forest floor. On the other hand, it followed that there was a small number of the plant classes with 23 species in a no managed district. 8 of 20 species of the trees were deciduous broad-leaved trees without wild Rhododendrons, and the herb were identified for only three species. Thus it is considered that there is a possibility of making the Rhododendron to produce more flowering amount by thinning and removing broad-leaved evergreen trees and shrubs at a suitable rate in a period of at least 25 years. Additionally, the results of this paper imply that understanding unattended time forest management is the most important for Satoyama forest conservation in the future.続きを見る |
| 目次 | 1. 研究の背景と目的 2. 研究方法 3. 結果 4. 結語 5. 今後の里山管理への展開 |
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| 登録日 | 2020.04.08 |
| 更新日 | 2024.12.16 |