Mendeley出力
＜紀要論文＞
福岡市の鴻巣山におけるヤマザクラの消長と着花状況
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| 概要 | In Japan, historically Satoyama coppice forest was used for firewood, charcoal and organic compost resource, and they maintained variety of flora and fauna, and kept cultural landscape. But now, as th...ey lost such roles by prevalence of fossil fuel and artificial manure, they show natural succession in which the deciduous trees became stunt and decreased contrary to- the vigorous growth of broadleaved evergreen trees. The aim of this article is to make clear the flowering condition and growing of Prunus jamasakura under the condition for conserving the seasonal scenery and biodiversity. In 2008, we conducted the follow-up survey in abandoned coppice woodlands "Kohnosu-Yama Forest Reserve" in urbanized area, and compared the collected data with 1999' s one. The results are as follows: 1) The number of P. jamasakura decreased from 272 to 235 mainly ascribed to suppressing and shading of surroundings such broadleaved evergreen trees as Castanopsis sieboldii, Neolitsea sericea, Cinnamonum camphora, and Machilus thunbergii. Additionally, the total flowering rank declined from 2. 7 in 1999 to 2.3 in 2008. 2) The average tree height of existing P. jamasakura increased from 11.m in 1999 to 11.7m in 2008, and the DBH also increased from 20.9cm in 1999 to 25.0cm in 2008. The most growing one's height and DBH increased 6.5m and 13.7cm respectively. 3) The number of P. jamasakura died was 61, and the average height was 9.6m and the average DBH was 14.3cm. 4) The number of P. jamasakura new was 24, and the average height was 4.6m and the average DBH was 6.8cm. They invaded almost all of the forest edge. 5) It was effective for encouraging P. jamasakura to remove the surrounding evergreen trees by volunteer activities and fallen trees collapsed by typhoons.続きを見る |
| 目次 | 1. 研究の背景と目的 2. 研究の手法 3 結果と考察 4. まとめ |
詳細
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| 登録日 | 2020.04.08 |
| 更新日 | 2023.06.21 |