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Growth of regenerated tree seedlings associated with microclimatic change in a mature larch plantation after harvesting

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Title: Growth of regenerated tree seedlings associated with microclimatic change in a mature larch plantation after harvesting
Authors: Kitaoka, Satoshi Browse this author
Watanabe, M. Browse this author
Watanabe, Y. Browse this author
Kayama, M. Browse this author
Nomura, M. Browse this author
Sasa, K. Browse this author →KAKEN DB
Keywords: Winter logging
Vertical profile of CO2 concentration
Current-year shoot length
Deciduous broad-leaved tree species
Issue Date: Jul-2009
Publisher: Springer Japan
Journal Title: Landscape and Ecological Engineering
Volume: 5
Issue: 2
Start Page: 137
End Page: 145
Publisher DOI: 10.1007/s11355-009-0070-y
Abstract: In order to further develop methods of sustainable forest management, we evaluated the effects of logging practices during the winter on micro-climatic factors and growth of four seral deciduous broad-leaved tree seedlings regenerated in a larch plantation in northern Japan. We found that winter logging practices drastically changed micro-climatic factors, especially in terms of light intensity and the vertical distribution pattern of CO2 concentration. Harvesting overstory larch trees increased photosynthetic photon flux (PPF), which may enhance the photosynthesis of understory plants. We examined the undergrowth for tree seedlings of the following species: two late successional species, Prunus ssiori and Carpinus cordata; one gap phase species, Magnolia hyporeuca; and one mid-late successional species, Quercus mongolica var. crispula. All of the four studied tree species responded well to the practices of winter logging after the second year of harvesting overstoried larch trees. The current shoot diameter and current shoot length increased significantly. Therefore, we conclude that winter logging practices should improve shoot growth of deciduous broad-leaved tree seedlings regenerated in a larch plantation through the change in environmental factors that accompanies larch harvest.
Rights: The original publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/39121
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 笹 賀一郎

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