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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/16838

Title: 1960年以降の日本の自然海岸の改変の統計学的分析
Authors: 敷田, 麻実
小荒井, 衛
Keywords: natural coastline
artificial coastline
coastal zone
the Coastal Protection Law
Issue Date: 1997-03
Publisher: 日本沿岸域学会
Magazine name: 日本沿岸域学会論文集
Volume: 9
Start page: 17
End page: 25
Abstract: The ratio of artificial to natural coast is considered to be an important index for the study of coastal zone management from an environmental point of view. The amount of natural coast can be used as an index showing the destruction of natural environment in the coastal zone as well. In Japan, however, the ratio of artificial to natural coastline has been examined only in three national coastal environment investigation projects conducted beginning in 1978 by the Environmental Agency of Japan. The authors used the national coastal statistics published every year by the Ministry of Construction to analyze the degree of modification of the Japanese natural coast statistically. The results show that artificial modification of the Japanese coast has progressed since the period of high economic development in Japan in the 1960's. The ratio of artificial to natural coastline continued to decrease from 78% in 1960 to 55% in 1993. The history of the artificial modification of the coastline falls roughly into two phases. The first phase began in 1960 and is characterized by the rapid decrease in natural coastline. The second phase began in 1980 and shows a substantial loss of natural coastline in an area designated by the Coastal Protection Law as needing protection.
Rights: 本著作物は日本沿岸域学会の許可のもとに掲載するものです。This material is posted here with permission of the Japanese Association for Coastal Zone Studies. Copyright (C) 1997 日本沿岸域学会. 敷田麻実, 小荒井衛, 日本沿岸域学会論文集, 9, 1997, pp.17-25.
URI: http://hdl.handle.net/10119/16838
Material Type: publisher
Appears in Collections:a10-1. 雑誌掲載論文 (Journal Articles)

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