DEVELOPMENT OF A GENERAL ENVIRONMENTAL INDEX FOR CONSERVATION STRATEGY OF MOUNTAINOUS AREAS

目前，人们从农田和林地的生态功能角度来认识山区的意义。本研究在此背景下，以长野县千叶泻县的小丸子镇、武石村、和田村和长门镇为例，探讨了一般环境指数的发展，以保护山区。通过对滑坡防治、洪水防治、水土流失防治和大气污染防治进行评价，利用地理信息系统中的叠加技术，构建了国家土地保护功能的综合指标。通过问卷调查，得出了调查区域内居民对住区的总体环境评价。将表达国土资源保护功能的综合指标与以居民意见为单位的综合环境评价相结合，构建了综合环境指数。认为这是反映山区健康状况的指标。

AT PRESENT, THE SIGNIFICANCE OF MOUNTAINOUS AREAS IS RECOGNIZED FROM THE VIEWPOINT OF ECOLOGICAL FUNCTION OF FARMLAND AND WOODLAND. IN THIS RESEARCH, BASED ON SUCH A BACKGROUND, DEVELOPMENT OF A GENERAL ENVIRONMENTAL INDEX WAS INVESTIGATED IN ORDER TO CONSERVE MOUNTAINOUS AREAS AS A CASE STUDY OF MARUKO TOWN, TAKESHI VILLAGE, WADA VILLAGE AND NAGATO TOWN IN CHIISAGATA COUNTY, NAGANO PREFECTURE.BY EVALUATING LANDSLIDE PREVENTION, FLOOD PREVENTION, EROSION PREVENTION AND AIR POLLUTION CONTROL, A SYNTHETIC INDEX EXPRESSING FUNCTIONS OF NATIONAL LAND CONSERVATION WAS CONSTRUCTED BY MEANS OF OVERLAY TECHNIQUES IN GEOGRAPHIC INFORMATION SYSTEM. A GENERAL ENVIRONMENTAL EVALUATION BY RESIDENTS' OPINIONS FOR SETTLEMENT IN THE INVESTIGATED AREA WAS DERIVED BY THE USE OF A QUESTIONNAIRE SURVEY.BY MEANS OF INTEGRATING A SYNTHETIC INDEX EXPRESSING FUNCTIONS OF NATIONAL LAND CONSERVATION AND A GENERAL ENVIRONMENTAL EVALUATION BY RESIDENTS' OPINIONS AS A UNIT OF SETTLEMENT, A GENERAL ENVIRONMENTAL INDEX WAS CONSTRUCTED. IT IS CONSIDERED THAT THIS IS A INDEX EXPRESSING SOUND CONDITION OF MOUNTAINOUS AREAS.