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- Title
The regeneration mechanisms of a Pterocarya rhoifolia population in a heavy snowfall region of Japan.
- Authors
Nakano, Yosuke; Sakio, Hitoshi
- Abstract
To uncover the population regeneration mechanisms and function of sprouting of the canopy tree species, Pterocarya rhoifolia, in a heavy snowfall region of Sado Island, Japan, we investigated the stool structure and sprouting throughout the life history stages of the tree. We set up a plot, categorized the life history stages, characterized the relationship between individual growth and sprouting, and recorded the age and distribution of sprout stems in stools. We found that established juveniles were often damaged by snow pressure but did produce some sprout stems. Mature individuals had a stool structure with planar expansion by stem layering, experienced stem breakage, and produced sprout stems due to snow pressure. These results suggest that P. rhoifolia occupying heavy snowfall regions can maintain their population by sprouting, which recovers the tree body from snow pressure damage.
- Subjects
JUGLANDACEAE; REGENERATION (Botany); PLANT canopies; PLANT species; SNOW; GERMINATION; LIFE history theory
- Publication
Plant Ecology, 2018, Vol 219, Issue 12, p1387
- ISSN
1385-0237
- Publication type
Article
- DOI
10.1007/s11258-018-0888-1