コナラ二次林の林床管理の変化が種組成と土壌に及ぼす影響

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Effects of the alteration of the management, such as interruption of weeding and removing fallen leaves from the forest floor, on the species composition and soil conditions of the secondary forests of Quercus serrata were studied in the western part of Musashino terrace, central Honshu, Japan. The forests were identified as the typical subassociation of Quercetum acutissimoserratae, and subclassified into the variant of lxeris dentata and the variant of Quercus myrsinaefolia. The stands under management turned out to be the variant of lxeris dentata, and the stands abandoned turned out to be the variant of Quercus myrsinaefolia. These facts show that the alteration of the management to the secondary forests of Quercus serrata changed the species composition and differentiated the under unit. Differences in soil conditions between the stands under management and the stands abandoned were clear mainly in the topsoils. Hardness, porosity, total carbon, total nitrogen, EC and exchangeable base (Ca, Mg, K) showed major differences. It was discovered that pedological physico-chemical properties became richer with the interruption of management to the secondary forests of Quercus serrata. It was considered in connection with the factor of the quantity of the litter and the physical property of the topsoil, whether the differential species of the variant of Ixeris dentata and of the variant of Quercus myrsinaefolia appear or not.
日本生態学会の論文
1992-08-10

コナラ二次林の林床管理の変化が種組成と土壌に及ぼす影響

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