Abstract: Community gardens are multi-functional landscape spaces that improve people's welfare and urban development. Influenced by the "carbon peaking and carbon neutralization" strategy, as well as the policy of "Co-construction, Co-governance and Sharing", community gardens should seek opportunities for practical innovation. On this basis, the innovative design and construction process of the co-constructed Nanshan Community Garden in Shenzhen were reviewed systematically in this study. We discuss ways to combine the professional theoretical knowledge of designers and the demands of community residents into an overall process of design, construction, maintenance and management under a framework of four-party cooperation. In this way, the co-construction, co-governance and sharing mechanism of community gardens are determined. The results provide a reference for the construction of urban community gardens under the background of carbon neutralization. 
　　Unlike traditional landscape improvement projects, the design and construction of Nanshan Community Garden were not only motivated by environmental beautification, but also focused on other factors, including public participation, environmental education, harmonious neighbourhoods, and the exploration and promotion of carbon-neutral concepts and methods. Moreover, the concept of carbon neutrality was integrated into the whole process of co-construction, co-management, and sharing. Based on field and questionnaire surveys and public participation, the Nanshan Community Garden was built and operated in the following modes: (1) Co-construction: multi-level public participation, cooperative construction and materialization of carbon neutralization concepts. (2) Co-governance: the use of "Internet +" thinking and online-offline cooperative maintenance were applied to stimulate a benign "ecology-economy" circle. (3) Co-sharing: constructing a public space that carries multiple activity functions and low-carbon sustainability.
　　The project was scheduled for completion at the end of July 2021. The number of activities at the site has increased significantly since then. Based on follow-up visits to the project, the Shenzhen Nanshan Community Garden was highly appreciated by the local community and all sectors of society after it was completed and put into use. The site was transformed from a forgotten urban "lost space" to a warm space where one can enjoy vegetation. The project supports the daily operation and maintenance of the community garden based on profits obtained by trading in the carbon market, thus forming a virtuous cycle. Finally, a mature system of public attention, green carbon sinks, and benefits to multiple parties was formed through joint development between the community and government enterprises. Moreover, the Shenzhen Nanshan Community Garden is also a typical public space for edutainment. (1) Compared with individual participation, children's participation in planting and learning about plants can bring family participation and enhance neighbourhood communication. (2) Children's participation also stimulates parents’ enthusiasm for maintaining the community garden. Parents in the community began organising the maintenance and running of the community garden to create a good learning and living environment for their children. (3) The community garden also provided a way for children to understand nature and protect natural resources. Children can understand flowers and plants in nature at any time and any place, thus improving their understanding of nature. (4) The community garden can help urban villages to beautify the environment, purify the air, relieve pressure on residents, and improve their well-being. The spontaneous attraction of residents to the community garden is not only conducive to improving its vitality, but can also promote social networking among the community, facilitate the construction of community culture, and realize interpersonal and human-environment connections. 
　　As a public resource of urban communities, community gardens should consider ways to build sustainable community governance structures from the perspective of multi-centre order. Besides, community gardens that are multi-functional landscape spaces concerned with well-being and sound urban development can consider the functions required by the public and sustainable development simultaneously, thus facilitating the realization of "carbon neutralization".

Key words: 　community garden, carbon neutralization, co-construction, co-governance and sharing, multiple interest subjects

摘要： 以深圳市南山社区花园为例，探讨城市社区花园响应“双碳”战略和“共建共治共享”政策的方式与效果。基于实地调研、问卷调查和公众参与，南山社区花园运用了以下手段：1）共建:多层次公众参与、合作建设；2）共治:使用“互联网＋”思维，线上线下综合维护；3）共享:建设承载多重活动功能、低碳可持续的公共空间。项目回访证明曾经的社区“失落空间”转变为了温暖的城市空间。研究表明，城市社区花园作为一种多功能景观空间，能够兼顾民众当下真实需求的功能性和可持续发展的前瞻性，从生活端助力“碳中和”目标。

关键词: 社区花园, 碳中和, 共建共治共享, 多利益主体