Table A1.

Measurement items of key variables.

Variables		Items	Source
Organisational citizenship behaviour for the environment (OCBE)	1	In my work, I weigh the consequences of my actions before doing something that could affect the environment 我在开展工作之前会权衡自己的行为是否有利于环境保护	Boiral and Paillé (2012) [52]; Zhang et al. (2018) [20]
	2	I voluntarily carry out environmental actions and initiatives in my daily work activities 在我的日常工作中, 我自愿开展环保行为和举措
	3	I make suggestions to my colleagues about ways to protect the environment more effectively, even when it is not my direct responsibility 我会给同事提出保护环境的建议, 即使这不是我的责任
	4	I actively participate in environmental events organised in and/or by my company 我积极参与企业组织的环保活动
	5	I stay informed of my company’s environmental initiatives 我保持了解我企业的环保措施
	6	I undertake environmental actions that contribute positively to the image of my organisation 我从事有利于企业积极形象的环保行动
	7	I volunteer for projects, endeavours, or events that address environmental issues in my organisation 我自愿承担我企业有关环境问题的各种项目
	8	I spontaneously give my time to help my colleagues take the environment into account in everything they do at work 我不由自主地帮助同事在工作中考虑环境问题
	9	I encourage my colleagues to adopt more environmentally conscious behaviour 我鼓励我的同事采用更有环境意识的行为
	10	I encourage my colleagues to express their ideas and opinions on environmental issues 我鼓励我的同事表达他们对环境问题的想法和意见
Self-sacrificial leadership	1	My team leader is willing to make personal sacrifices in the team’s interest 我的领导愿意为团队的利益做出个人牺牲	De Cremer and van Knippenberg (2004) [24]; Qu et al. (2021) [9]
	2	My supervisor is willing to stand up for the team members’ interests, even when it is at the expense of his/her own interests 我的领导即使个人利益受损,也愿意维护组织成员利益
	3	My team leader is always among the first to sacrifice free time, privileges, or comfort if that is important 我的领导在工作中愿意牺牲个人特权、舒适和享受
	4	I can always count on my supervisor to help me in times of trouble, even if it is at a cost to him/her 在遇到困难的时候,我总是能指望我的领导帮助我,即使帮助我会使领导个人利益受损。
	5	My supervisor is willing to risk his/her position if he/she believes the goals of the team can be reached that way 我的领导在实现组织目标的过程中,会作出自我牺牲
Employees’ perceived corporate social responsibility (CSR)	1	Our company encourages its employees to participate in voluntarily activities 我们公司鼓励其员工参加自愿性活动	Turker (2009a) [33]
	2	Our company policies encourage the employees to develop their skills and careers 我们公司的政策鼓励员工发展他们的技能和职业
	3	The management of our company is primarily concerned with employees’ needs and wants 我们公司的管理层主要关注员工的需求
	4	Our company implements flexible policies to provide a good work and life balance for its employees 我们公司实施灵活的政策,为员工提供一个良好的工作和生活平衡
	5	The managerial decisions related with the employees are usually fair 与雇员有关的管理决策通常是公平的
	6	Our company supports employees who want to acquire additional education 我们公司支持希望获得额外教育的员工
Pro-environmental organisational climate (PEOC)	1	Our company is worried about its environmental impact 我们公司关注自身对环境的影响	Norton et al. (2014) [43]
	2	Our company is interested in supporting environmental causes 我们公司致力于支持环保事业
	3	Our company believes it is important to protect the environment 我们公司认为保护环境很重要
	4	Our company is concerned with becoming more environmentally friendly 我们公司热衷于进一步的环境友好发展