Population structure and dynamics in a lucidophyllous forest dominated by Distylium racemosum and Quercus salicina in Takaoka, Miyazaki Prefecture

DOI Web Site 25 References
  • Sato Tamotsu
    Kyusyu Research Center, Forestry and Forest Products Research Institute:Department of Forest Vegetation, Forestry and Forest Products Research Institute
  • Saito Satoshi
    Kyushu Research Center, Forestry and Forest Products Research Institute
  • Eto Koji
    Forest Technical Center, Kyushu Regional Forest Office
  • Kato Shozo
    Forest Technical Center, Kyushu Regional Forest Office

Bibliographic Information

Other Title
  • 宮崎県高岡のイスノキ・ウラジロガシ林における個体群構造と動態
  • ミヤザキケン タカオカ ノ イスノキ ウラジロガシリン ニ オケル コタイグン コウゾウ ト ドウタイ

Search this article

Description

In order to clarify population structure and dynamics in a 1.0-ha lucidophyllous forest in southwestern Japan, we conducted two successive censuses of trees with DBH&ge;5 cm in 1998 and 2001. The overall annual mortality of 1.54% was higher than recruitment rate of 1.32%. Distylium racemosum, the most dominant species in the plot, showed in verse-J shaped DBH class frequency distribution, and was expected to be maintain their population and dominance in the future. Quercus salicina, the second most dominant species, had small trees (DBH<15 cm), and showed similar structure as Distylium racemosum. However, distribution pattern of small trees implied that Quercus salicina could not regenerate without gap formation. As compared with neighboring old-growth forest (about 18 km northwest of the plot), some species decrease (e.g. Persea japonica and Actinodaphne longifolia) or lack of their dominance (e.g. Pasania edulis) in the plot, and these differences may reflect the past disturbances. The structural differences and lack of very large trees (i.e. DBH >70 cm) suggested that this forest was an old secondary forest.

Journal

References(25)*help

See more

Details 詳細情報について

Report a problem

Back to top