HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >

Differences in canopy and understorey diversities after the eruptions of Mount Usu, northern Japan-Impacts of early forest management

This item is licensed under:Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Files in This Item:
Library_Species diversity after the eruptions of Mount Usu.pdf1.08 MBPDFView/Open
Supplementary data.docx3.78 MBMicrosoft Word XMLView/Open
Please use this identifier to cite or link to this item:

Title: Differences in canopy and understorey diversities after the eruptions of Mount Usu, northern Japan-Impacts of early forest management
Authors: Végh, Lea Browse this author
Tsuyuzaki, Shiro Browse this author →KAKEN DB
Keywords: Succession
Plant diversity
Species composition
True diversity
Issue Date: 15-Apr-2022
Publisher: Elsevier
Journal Title: Forest Ecology and Management
Volume: 510
Start Page: 120106
Publisher DOI: 10.1016/j.foreco.2022.120106
Abstract: Evaluating the effects of management on successional trajectories, plant composition, and diversity has been difficult due to the scarcity of long-term studies. This study examined the composition and diversity of species in natural and artificially regenerated forests at two eruption sites of Mount Usu, northern Japan, during 2015-2019, to compare the effects of active and passive management. The two sites are Yosomi, damaged by the 1910 eruptions, and the summit, damaged by the 1977-78 eruptions. Various natural and artificial forests developed at both sites, whose species composition was analyzed by non-metric multidimensional scaling to measure similarity between the forest types, and whose diversity was compared by the true diversity index, showing the effective number of species, from order 0 (presence-absence) to order 2 (weighted species) for two layers: the canopy (woody species with DBH > 3 cm) and understorey (< 2 m high plants). Canopy diversity was measured by stem density in five 10 m x 10 m plots in each forest type, and understory diversity was measured by shoot density in four 1 m x 1 m quadrats in each plot. The canopy and understorey species compositions were distinct between the forest types, but the canopy was more affected by management than the understorey, indicating that early forest management had long-term effects on species composition. Species composition of the plantations resembled those of the natural forests when the plantations had patchy spatial structure. The naturally regenerated forests showed the highest diversities at both eruption sites, while the plantations dis -played low diversities, except in one case, when the plantation showed heterogeneous forest structure. The plantations changed their species composition slowly and did not transform into natural forests. In conclusion, we suggest using a patchy plantation design with some space between patches instead of dense planting, to create resilient, diverse, and native forests after disturbances.
Rights: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Végh Lea

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University