Ecological Research

, Volume 9, Issue 2, pp 143–150 | Cite as

Canonical correspondence analysis of early volcanic succession on Mt Usu, Japan

  • Shiro Tsuyuzaki
  • Roger del Moral


Canonical correspondece analysis (CCA) was applied to explore revegetation patterns during early succession on Mt Usu. Vegetation was buried by deposits of ash and pumice from 1 to 3 m in depth from the 1977–78 eruptions. Three habitats were selected: tephra, tephra in gully and original surface. Plant density and plant cover data were analyzed separately. Environmental factors consisted of five quanticative variables (organic matter, elevation, distance from colonizing source, erosion and deposition of volcanic deposits) and three nominal variables (habitat types: tephra, tephra in gully and original surface). Canonical correspondence analysis showed that the original surface played a special role in vegetation development because the old topsoil supplied both nutrients and seed-bank species. The CCA also suggested that the environmental factors that influence plant density and cover differ. Distance from colonizing source affected plant density while erosion affected cover. Using CCA, factors could be distinguished that influenced seedling establishment from vegetation expansion and vegetation recovery dynamics could also be more clearly interpreted.

Key words

buried ropsoil canonical correspondence analysis (CCA) erosion succession Mt Usu 


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Copyright information

© Ecological Society of Japan 1994

Authors and Affiliations

  • Shiro Tsuyuzaki
    • 1
  • Roger del Moral
    • 1
  1. 1.Department of Botany, KB-15University of WashingtonSeattleUSA

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