房総半島の常緑広葉樹林とその二次林

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In this report the floristic composition and the distribution of the evergreen broad-leaved forests; laurel forests and their secondary forests are described． There are 6 associations in the evergreen broad-1eaved forests of Boso Peninsula; the Quercetum myrsinaefoliae, the Ardisio－Castanopsietum sieboldii, the Illicio-Abietetum firmae, the Aceri－Zelkovetum, the Arachniodo-Castanopsietum sieboldii and the Polysticho-Perseetum thunbergii. In the summergreen secondary forests 2 associations are recognized; the Quercetum acutissimo-Serratae and the Castaneo-Quercetum serratae. Their floristic composition is compared. Two more plant communities, the Daphno pseudo-mexer eum-Quercetum serratae and the Rhus succedanea-Fagara ailanthoides-community in which there are very few relives, are described by Miyawaki, A., K. Fujiwara, L. Minowa and Y. Murakami （1981）. The relations of the evergreen broad-leaved forests and the secondary forests are described in Fig．4．The Quercetum myrsinaefoliaeis substituted by the secondary forest of Quercetum acutissimo-Serratae, the Illicio-Abietetum firmae by the Castaneo-Quercetum serratae, subassociation of Pertya glabrescens, the Ardisio-Castanopsietum sieboldii by the Castaneo-Quercetum serratae, typical subassociation and by the Daphno pseudo-mezereum-Quercetum serratae. The exact relations between the Daphno pseudomezereum-Quercetum serratae and the typical subasso ciation of the Castaneo-Quercetum serratae must be studied in the future. The Arachniodo-Castanopsietum sieboldii, and the Polysticho-Perseetum thunbergii are substituted by the Rhus succedanea－Fagara ailanthoides-community.
横浜国立大学の論文

房総半島の常緑広葉樹林とその二次林

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