宜居城市是随着人类对自身居住问题认识的逐步深化和政府执政理念的转变而提出的,是一个包含了生态、安全、便捷、亲切等要素在内的动态的综合概念。 The livable city is proposed with the gradual deepening of human understanding of their own living problems and the change of government governing concept. It is a dynamic and comprehensive concept that contains such elements as ecology, security, convenience and affection.