The light environment, morphology and growth of the early successional tree species Litsea citriodora

Yoshiyuki Miyazawa, Shirasa Tatsuya, Kihachiro Kikuzawa, Kyoichi Otsuki

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2 Citations (Scopus)

Abstract

The light environment and growth traits of the pioneer tree species Litsea citriodora in a recently clear-cut plantation were investigated in order to reveal the establishment process and growth of this species under annual weeding after clear-cutting. We investigated the light environments and the morphology, physiology and aboveground architecture of L. citriodora saplings in a plot that included both clear-cut open areas and forest floor under a conifer canopy. Dense populations of L. citriodora saplings were found in the open sites but few were observed on the forest floor. Saplings that originated from old stumps (sprout-saplings) were tall in height and dense, but seedlings were sparse and lower in height than the competitive tall herbaceous species Solidago altissima. Saplings of L. citriodora showed a higher leaf area per aboveground mass and greater area-based photosynthetic capacity than saplings of the co-occurring pioneer tree species Mallotus japonicus and Clerodendron trichotomum. Moreover, the L. citriodora saplings had a main stem with a larger length per mass ratio and more efficiently elongated per unit aboveground mass than M. japonicus and C. trichotomum. Sprout-saplings of L. citriodora attained rapid vertical elongation with rapid biomass acquisition as a result of their aboveground shoot architecture, allowing competition with S. altissima. Clear-cutting and subsequent weeding not only created open sites favorable for this pioneer tree, but also promoted the formation of sprouts, allowing sprout-saplings with rapid vertical growth to successfully establish in the clear-cut zone by inhibiting complete coverage by other pioneer trees.

Original languageEnglish
Pages (from-to)251-258
Number of pages8
JournalForest Ecology and Management
Volume236
Issue number2-3
DOIs
Publication statusPublished - Dec 1 2006

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Litsea
sapling
saplings
pioneer species
Mallotus japonicus
clearcutting
forest floor
forest litter
weed control
Clerodendrum
growth traits
stumps
leaf area
conifers
coniferous tree
physiology
plantation
shoot
plantations
canopy

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Forestry
  • Ecology

Cite this

The light environment, morphology and growth of the early successional tree species Litsea citriodora. / Miyazawa, Yoshiyuki; Tatsuya, Shirasa; Kikuzawa, Kihachiro; Otsuki, Kyoichi.

In: Forest Ecology and Management, Vol. 236, No. 2-3, 01.12.2006, p. 251-258.

Research output: Contribution to journalArticle

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