亲社会行为泛指一切对社会、他人有益的行为。亲社会行为对于个体心理健康，和谐的社会氛围等方面都具有重要积极作用。以往研究从受助者、施助者、环境多个角度探讨亲社会行为的影响因素，但对于环境的研究多在于文化、经济不平等状况等客观环境特征，个体对于环境的主观态度与感受是否会影响个体实施亲社会行为是进一步值得思考的问题。地方依恋作为个体对于地方的主观态度，代表着人与地方之间的正向情感联结，其能够增强个体的自我连续性、归属感等。那么地方依恋是否会对个体的亲社会行为产生影响呢，以及这两者之间的中介机制又是什么，是本篇文章主要想探索的两个研究问题。

通过梳理过往文献提出如下假设：地方依恋能够正向影响亲社会行为；社会责任感在地方依恋和亲社会行为之间起中介作用。本文通过四项研究验证上述假设。

研究1(N=379)通过线上问卷调查的方法，发现了个体对所居住城市的地方依恋水平能够正向预测个体的六种亲社会倾向。研究2是现场研究，包含一项预研究和一项正式研究，其中预研究(N=88)验证了地方依恋的操纵方法的有效性，正式研究(N=111)通过操纵地方依恋，并且将亲社会性的测量落实到行为层面，验证了地方依恋与亲社会行为之间的因果关系，即地方依恋能正向影响个体的亲社会行为。研究3(N=260)通过操纵地方依恋，问卷测查个体的社会责任感水平，验证了社会责任感在地方依恋和亲社会行为之间的中介作用。研究4(N=201)包含两个研究，进一步聚焦到个体在城市中的居住地点，选取学校(研究4a)和社区(研究4b)两个居住地点再次验证了上述假设。

Prosocial behavior is all beneficial to society and others. Prosocial behavior plays an important and positive role in individual mental health, harmonious social atmosphere, and other aspects.Previous studies have explored the influencing factors of prosocial behavior from multiple perspectives of the recipient, the donor and the environment, but most studies on the environment have focused on the objective environmental characteristics such as cultural and economic inequality. Whether individual subjective attitudes and feelings towards the environment will affect individual prosocial behavior is a question worth further consideration. Place attachment, as an individual's subjective attitude towards the place, represents a positive emotional connection between people and the place, which can enhance an individual's sense of continuity and belonging. So, will local attachment have an impact on individual prosocial behavior, and what are the mediating mechanisms between the two? These are the two research questions that this article mainly aims to explore.

Through combing the previous literature, the following assumptions are put forward: place attachment can positively affect prosocial behavior; Social responsibility plays a mediating role between place attachment and prosocial behavior. We tested the hypothesis through four studies.

Study1(N=379), using an online survey method, found that the level of place attachment of individuals to their place of residence can positively predict the six prosocial tendencies. Study 2 is a field study, including a pre study and a formal study, in which the pre study(N=88)verified the effectiveness of the manipulation method of place attachment. The formal study(N=111)verified the causal relationship between place attachment and specific prosocial behavior by manipulating place attachment and applying the measurement of prosocial behavior to the behavioral level, that is, place attachment can positively affect individual prosocial behavior. Study3(N=260)tested the mediating effect of social responsibility between individuals by manipulating place attachment and measuring their level of social responsibility through questionnaires.Study4(N=201)consists of two studies that further focus on the individual's place of residence in the city. Two residential locations, namely school(Study4a)and community (Study4b), were selected to further validate the above hypothesis.