横浜国立大学キャンパスの現存植生 : 25年間の植生変化について

概要

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Actual vegetation in the campus of Yokohama National University was investigated from spring to autumn 1993. In 1968 vegetation research was carried out when the area was prepared for the University campus ( Kitagawa, Miyawaki & kawamura 1968). In some areas plantations of Castanopsis cuspidata var. sieboldii, Cinnamomum camphora and Chamaecyparis obtusa grew. 70 buildings (140,013 m2), roads, parking areas and playgrounds were constructed from 1968. Vegetation on the campus was changed remarkably. In this research 24 plant communities are recognized. A map of actual vegetation was drawn with 20 legend items. The vegetation was compared with that of Hodogaya Golf course when the University campus was prepared in 1968. Results of the investigation are as follows: 1) Progressive succession was rather slow in the forest, 2) In the environmental restoration forest vegetation is well developed, 3) successional mechanisms are analyzed, 4) Suggestions for an ecological campus museum are proposed. Vegetation succession (over 25 years) from Zoysia lawn to Cornus controversa and Qercus serrata forests could be observe at some places but was very slow, as comapred with the Environmental Protection Forests which were already similar to natural forest.
横浜国立大学の論文