原町市東ヶ丘公園予定地の植生

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Contribution from the Department of Vegetation Science, Institute of Environmental Science and Technology, Yokohama Natlonal University No.232.The planning area of Azumagaoka Park is located near the urban center of Haramachi City, Fukushima Prefecture. The actual vegetation in the park planning area was surveyed in 1997-2000 and was summarized into 5 associations and 14 communities of natural vegetation, 4 associations and 12 communities of substitute vegetation, and 2 plantation types. A map of actual vegetation was drawn at the scale 1:5000. A rare vegetation community, Eriocaulon decemflorum var. nipponicum-Rhynchospora faberi, occurs on an abandoned skeet-shooting range. An Alnus japonica community, a Caricetum dispalatae, and a Phragmites australis community occur around Origasawa reservoir. An Arundinello-Miscanthetum sinensis is good condition grassland with Adenophora triphylla var. japonica, Sanguisorba officinalis and Vicia unijuga etc. This occurs on the grounds around race truck in Nomaoi-saijochi(site of the Nomaoi festival), which is grassland, and on the bank of Origasawa reservoir. Castaneo-Quercetum serratae covers most of the hill area. A map of the degree of naturalness of vegetation in the planning area was drawn at 1:10000. A Eriocaulon decemflorum var. nipponicum-Rhynchospora faberi community and an Alnus japonica community were shown to be the most natural. Recomendations from the investigation are as follows: 1) Eriocaulon decemflorum var. nipponicum-Rhychospora faberi community and Alnus japonica community should be protected, 2) restoration with natural vegetation species is proposed for the bare lands, 3) maintenance and management of the relatively secondary grassland should be continued, and 4) practical use and management of secondary forests should be continued.

原町市東ヶ丘公園予定地の植生

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