Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 611756, Chengdu, Sichuan, China.
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, 611756, Chengdu, Sichuan, China.
J Environ Manage. 2021 Jul 15;290:112591. doi: 10.1016/j.jenvman.2021.112591. Epub 2021 Apr 18.
Waste classification is regarded as one of the most important strategies for waste management, and its success depends on the active participation of the public. Based on the theory of planned behavior (TPB) and attitude-behavior-condition (A-B-C) theory, this research investigated the key factors affecting residents' domestic waste classification intention (WCI) and waste classification behavior (WCB), and explored the moderating effects of three external factors including infrastructure (INF), government publicity (GP), and incentive measures (IM) on the intention-behavior relationship. The valid data were collected from 584 residents via conducting a face-to-face interview in Chengdu, a pilot city of waste classification in China, and analyzed by using the structural equation model (SEM). Results showed that residents' WCI and WCB had a significant discrepancy with the average values of 4.07 and 2.81, respectively. Attitude (AT), perceived behavior control (PBC) and classification knowledge (CK) were significantly related to residents' WCI, with AT (β = 0.65, P < 0.001) having the greatest direct impact. Meanwhile, CK and INF had a stronger impact on the WCB than WCI. GP indirectly affected WCB through the intermediary effect of CK. In addition, INF and GP had a positively moderating effect on residents' waste classification intention-behavior relationship and can facilitate the intention-behavior conversion. By contrast, IM failed to promote the conversion of residents' classification intention into behavior, and had no direct significant influence on residents' WCB. Finally, some relevant policy suggestions were put forward for the new pilot cities of waste classification in China.
垃圾分类被视为废物管理的最重要策略之一，其成功与否取决于公众的积极参与。本研究基于计划行为理论（TPB）和态度-行为-条件（A-B-C）理论，调查了影响居民生活垃圾分类意愿（WCI）和垃圾分类行为（WCB）的关键因素，并探讨了基础设施（INF）、政府宣传（GP）和激励措施（IM）三个外部因素对意图-行为关系的调节作用。通过在中国垃圾分类试点城市成都进行面对面访谈，从 584 名居民那里收集了有效数据，并采用结构方程模型（SEM）进行分析。结果表明，居民的 WCI 和 WCB 与平均值 4.07 和 2.81 存在显著差异。态度（AT）、感知行为控制（PBC）和分类知识（CK）与居民的 WCI 显著相关，其中 AT（β=0.65，P<0.001）的直接影响最大。同时，CK 和 INF 对 WCB 的影响大于 WCI。GP 通过 CK 的中介效应间接影响 WCB。此外，INF 和 GP 对居民垃圾分类意愿-行为关系具有积极的调节作用，可以促进意愿-行为的转化。相比之下，IM 未能促进居民分类意愿向行为的转化，对居民的 WCB 没有直接显著影响。最后，针对中国新的垃圾分类试点城市提出了一些相关的政策建议。
