広島県廿日市市宮島ドンドン川砂防堰堤予定地の維管束植物フロラ

厳島研究 : 広島大学世界遺産・厳島-内海の歴史と文化プロジェクト研究センター研究成果報告書 Issue 19 Page 1-15 published_at 2023-03-31
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Title ( jpn )
広島県廿日市市宮島ドンドン川砂防堰堤予定地の維管束植物フロラ
Title ( eng )
Vascular plant flora of the area surrounding the Dondon-gawa River on Miyajima Island, Hiroshima Prefecture, SW Japan, before the proposed construction of an erosion-control dam.
Creator
Phan Quynh Chi
KOYAMA Yoshiki
Zepeng Sheng
UCHIDA Shinji
KAMIMOTO Yukari
NAKAHARA-TSUBOTA Miho
Source Title
厳島研究 : 広島大学世界遺産・厳島-内海の歴史と文化プロジェクト研究センター研究成果報告書
Studies of the Itsukushima Island
Issue 19
Start Page 1
End Page 15
Number of Pages 15
Journal Identifire
NCID AA12063874
Abstract
Miyajima (Itsukushima) Island, Hatsukaichi City, Hiroshima Prefecture, is a protected area that serves as the core and buffer zones of Itsukushima Shrine, a World Heritage Site. The Dondon-gawa River on Miyajima Island has its upper stream located on a mountain slope and flows through the town area. A dam is planned to be built on the river to prevent erosion. Since the construction of the dam will involve removing forest and will also affect the plants on the forest floor, we investigated vascular plants to evaluate the species composition and distribution in the planned dam construction area. We confirmed the presence of 124 species (1 lycopod, 12 ferns, 102 angiosperms, and 9 gymnosperms; including both native and naturalized species). Some specimens were unidentifiable by morphology because of dwarfing and unconfirmed flowering due to deer browsing and therefore required DNA barcoding for identification. We also found in the forest bed some rare species listed in the Red List of Hiroshima Prefecture. Consideration should be given to the dam's location for the conservation of these species, together with an assessment of the environmental impact of the dam's placement.
Keywords
フロラ
植物相
生物相
世界遺産
砂防
稀少種
保全
デジタルコンテンツ
生物多様性
conservation
erosion-control dam
flora
alien species
rare species
biodiversity
Language
jpn
Resource Type departmental bulletin paper
Publisher
世界遺産・厳島-内海の歴史と文化プロジェクト研究センター
Date of Issued 2023-03-31
Publish Type Version of Record
Access Rights open access