報告書番号

U99042

タイトル（和文）

火力・原子力発電所の環境影響調査書における陸生哺乳類と生息環境

タイトル（英文）

Terrestrial mammal fauna and habitat in environmental assessment reports of thermal and nuclear power stations

概要 （図表や脚注は「報告書全文」に掲載しております）

生態系の調査や評価手法の検討に活用するため、火力・原子力発電所の環境影響調査書49編を整理、解析し、陸生哺乳類の地理的分布、生息状況と立地区分や植生との関係について検討した。日本の陸生哺乳類の約４割にあたる７目17科66種および亜種が確認され、全国的、地域的、局所的に分布するものに分けられた。地理的分布の検討から、今まで不明だったモグラ・ネズミ・コウモリ各目や帰化種の分布が5万分の１地形図レベルで明らかになった。発電所の立地を工業地、工業地・耕地混在、工業地・耕地・林地混在、林地の４区分に分けて出現種を検討した結果、確認種数は工業地が最少で15種、林地で最大の36種となった。また、植生タイプ(森林、草地、畑・果樹園、水田、市街・集落)との関連性を検討した結果、主要な哺乳類は植生タイプに応じた６つのグループに分けられることが明らかになった。

概要 （英文）

We analyzed the geological distribution of mammals, relationships between ecological distribution of mammals and land use, and vegetation type in the 49 environmental assessment reports of thermal and nuclear power stations in the coastal area of Japan. Seven orders and 17 families of 66 terrestrial mammal species including subspecies were listed from the reports. This is about 40% of the total species of terrestrial mammals observed in Japan. Mammals were divided into 3 groups: distributed in the nationwide, in limited districts, and in limited area. The geological distributions of Insectivora, Rodentia, Chiroptera and naturalized mammals, of which have not been well known, were arranged in a topographic map at the scale of 1:50,000 in this survey. The characteristics of power station sites were classified into 4 categories as follows: Industrial site, Industrial-agricultural mixed site, Industrial-agricultural-forest mixed site, and forest site. The relationships between site categories and species compositions were analyzed. The listed species were fifteen species in the industrial site, however, there were thirty six species in the forest site. The mammal species were classified into six groups by vegetation types of habitat; forest-dwelling, grassland-dwelling, farmland and orchard-dwelling, wide-dwelling except residential area, wide-dwelling mammals including residential area, and residential area-dwelling mammals.

報告者

キーワード