津門川の感覚的環境評価 : アンケート解析および回答者に関する考察

The evaluation of river environment on the Tsuto River flowing through Nishinomiya City, Hyogo Pref., was performed by using the questionnaire based on human sensitivity. The survey was operated around the middle reaches of the river on July, 2004 and focused on the recognition and evaluation of the river by local residents. Valid responses were obtained from 613 residents. Three fourths of the respondents were women and two thirds were middle and older aged persons. About 70% of the respondents have lived in the neighboring area within a 30 min. distance from Nishinomiya-kitaguchi Sta. Of Hankyu Railway and 60% have lived over a long period of 5 years. Major subject groups were housewives and female students. As for the recognition of the river, basic and current information, such as location of riverhead, upstream migration of Ayu fish (Plecoglossus altivelis) and construction of fish-way, was less well known, however, local residents activities for environmental protection of the river were well known and highly valued. As for the evaluation of the river, average proportion of positive evaluation in 15 questions belonging to 4 categories, prodigality of nature, unity with community, beauty of landscape and disaster measures, was only 18.1%. Lower evaluations were particularly featured in the questions related to the categories of prodigality of nature and beauty of landscape. The cross-tabulation for the recognizability showed that the recognition of the river became lower in the responses from women, young people and persons in the distant area and short-period residence. Especially concerning to the distance of residence from the station and the number of residential years, the differences of recognition between the residents appeared clearly. The cross-tabulation for the evaluation indicated strong complaint against the landscape and administrative response from neighboring older persons in long-period residence. On the other hand, female students showed less interest in the environment of the Tsuto River even when they lived in the neighboring area and long-period residence