ECOLOGICAL STUDIES ON THE VEGETATION OF AKIYOSHI-DAI LIMESTONE PLATEAU : (1)STRUCTURE OF THE FOREST COMMUNITY OF"CHOJAGA-MORI"

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概要

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• "Chojaga-mori"is a grove developed on the Akiyoshi limestone plateau which is an extensive one of the Karst areas in Japan. There were set up two different series of transect belts of 2m in width in the present study. To make a distribution map of the forest trees (more than 3cm in diameter), one is set up successively across the grove in E-W, and the other is in N-S directions. The authors attempted to analyse in detail the vegetational structure of the forest community on the basis of this map. The authors found a total 26 tree species, of which 11 are included into the evergreens and 15 in to the deciduous, however, the total of importance value of the former is about three times as much as the latter. The distribution pattern of the value of D. B. H. in this grove does not indicate the L-type, that is, it is considerably different from those reported from many primeval forest. This, together with the fact that the dispersion type of all the individuals in the forest is contagious, may suggest that the human agency such as firing or deforesting in the past had influenced the structure of this forest. The value of the standing crop or LAI (leaf area index) of the grove as well as the value of α (index of diversity) reveals the magnitude comparable with those of many other evergreen forests in Japan. Camellia japonica and Machilus thunbergii, the most important species, are distributed repulsively to each other in the forest.

• 日本生態学会の論文
• 1965-02-01

著者

• Shiomi Takayuki

  Yamaguchi Women's Junior College

• MIYATA Itsuo

  Yamaguchi Women's Junior College

• Miyata Itsuo

  Yamaguchi Women's Junior College

• Miyata I.

  Yamaguchi Women's Junior College

関連論文

• ECOLOGICAL STUDIES ON THE VEGETATION OF AKIYOSHI-DAI LIMESTONE PLATEAU : (1)STRUCTURE OF THE FOREST COMMUNITY OF"CHOJAGA-MORI"

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