本研究旨在建構並驗證「遊憩涉入、場所依賴、場所認同與環境責任行為」之關係模式,以瞭解水肺潛水者的遊憩涉入程度、場所依賴、場所認同與環境責任行為間的關係。研究對象以台灣地區水肺潛水者進行問卷調查,共獲得有效問卷401份。經文獻回顧與相關理論後,建立觀念性架構並運用結構方程模式進行分析。結果顯示,整體模式配適程度良好,遊憩涉入對場所依賴、場所認同與環境責任行為皆具有正向直接的影響力、場所依賴與場所認同對環境責任行為亦具有正向直接的影響力。且經檢驗,場所依賴與場所認同確實能於遊憩涉入與環境責任行為間扮演部份的中介角色。潛水業者或官方若欲維護海域生態資源、環境活動之推動、環境行為之產生時,必須事先了解潛水者之特性與需求,並透過此特性與需求的理解,提升遊憩者之涉入程度、場所依賴與場所認同。相關建議如下:(一)積極提升潛水者之遊憩涉入程度;(二)遊憩資源之提升;(三)加強潛水者之場所歸屬感。 The purpose of this study was to examine the relationships among recreation involvement, place dependence, place identity and environmentally responsible behavior as well as clarify the mediating effects of place dependence and place identity in their relationships. A total of 401 valid questionnaires were collected from a sample of SCUBA divers in Taiwan. The results show that recreation involvement has positive effect on place dependence, place identity and environmentally responsible behavior. In turn, place dependence has positive effect on place identity. Lastly place dependence and place identity has positive effect on environmentally responsible behavior. Moreover, place dependence and place identity, as an intermediate variable, has a significant influence on the relationship between recreation involvement and environmentally responsible behavior.