Bull. Natn. Sci. Mus., Tokyo, Ser. B, 22(2), pp. 77- 85, June 22, 1996

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Dynamics of the Senbon-matsubara Coastal Forest in Numazu
City, Central Japan I. Outline of the Coastal
Forest and Vegetational Analysis
by the Belt-transect Method
By

Fumihiro KONTA\ Tadao IT02 and Hajime NISHIKAWA 3
1

Department of Botany, National Science Museum,4- 1- 1 Amakubo, Tsukuba, Ibaraki 305, Japan
2
Faculty of Agriculture, Shizuoka University,
836 Ooya, Shizuoka 422, Japan
3
College of Industrial Technology, Nihon University,
1-2-1 Izumi-cho, Narashino, Chiba 275, Japan

Abstract The outline of the coastal forest of the Senbon-matsubara, Central Japan is noted.
The results of vegetational analysis by the Belt-transect method are given in this report as thefirst step of the successive studies on the dynamics and conservation of the Senbon-matsubara
coastal vegetation and flora. At present, the forest is composed of artificial Japanese blackpine forest (Pinus thunbergii) being mixed with many species of broad-leaved trees. Purestands of old aged black pine with no broad-leaved trees on the forest floor had been kept
before the nineteen-fifties under the strong influence of firewood collection by people. Many
coastal herbal species as Lathyrus maritina, Phellopterus littora/is, Cynanchum japonicum etc.
grew at the edge of the pure pine forest. Broad-leaved trees of both evergreen and deciduous
nature have invaded on the forest floor of the pine forest after people stopped the firewood
collection in the nineteen-fifties. Species compostion and the structure of the forest seem tobe going to change from those in the pure pine forest to those in the evergreen broad-leaved
forest. This change would result the extinction of coastal herbal species as noted above.

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