Most of the community-based forest management (CBFM/PHBM) literature has confirmed the role of social capital (SC) in helping forest-dependent communities access the state-forest areas, which includes its agroforestry lands. Nevertheless, the dynamics of SC to enable the smallholder dairy farmer (SDF) communities to access the agroforestry lands, including gaining, controlling, and maintaining the access, do not receive much attention. This research aims to examine the contribution of SC in promoting SDF communities in Indonesia to access agroforestry lands. Data were gathered through semi-structured interviews with 40 dairy farmers and 25 key informants, focus group discussions, field observations, and document analysis by using qualitative case studies of four SDF communities in West Java province. The findings reveal that SC plays considerable roles in enabling various mechanisms or collective actions, by which the smallholders acquire affordable and long-term access, as well as increasing the communities’ awareness of sustainable forest management. First, SC establishes various affordable options to access agroforestry lands, which include informal access through land-to-labor exchanges between authorities and communities, right-to-use transfer systems, hereditary access schemes, and information sharing among farmers. Furthermore, SC provides low-cost mechanisms for controlling and maintaining access via fenceless agroforestry patch border control and peer-to-peer land supervision. Second, SC contributes to creating mechanisms that lead to long-term access via institution-based systems in maintaining agroforestry land boundaries and function, including the village–forest border system, the land sharing and land sparing use system, the creation of renewable land tenure, and the gradual sanction system. Lastly, the knowledge shared by the forest authority and common knowledge fostered by communities reinforced the communities’ awareness of sustainable forest management.

大多数基于社区的森林管理（CBFM/PHBM）文献都证实了社会资本（SC）在帮助依赖森林的社区进入国有林区（包括农林地）方面的作用。然而，SC 使小农奶农 (SDF) 社区能够使用农林业土地的动态，包括获得、控制和维护使用权，并没有受到太多关注。本研究旨在探讨 SC 在促进印度尼西亚 SDF 社区获得农林地方面的贡献。通过对 40 名奶农和 25 名关键知情人进行半结构化访谈、焦点小组讨论、实地观察以及利用西爪哇省四个 SDF 社区的定性案例研究进行文件分析来收集数据。研究结果表明，可持续森林在促进各种机制或集体行动方面发挥着重要作用，通过这些机制或集体行动，小农获得负担得起的长期机会，并提高社区对可持续森林管理的认识。首先，SC 建立了各种负担得起的获取农林业土地的选择，其中包括通过当局和社区之间的土地到劳动力交换、使用权转让制度、世袭获取计划以及农民之间的信息共享来非正式获取。此外，SC 通过无围栏农林业斑块边界控制和点对点土地监管提供低成本机制来控制和维护访问。其次，SC 有助于建立机制，通过基于制度的系统实现长期准入，维护农林业土地边界和功能，包括村庄-森林边界系统、土地共享和土地节约使用系统、创建可再生土地保有权，以及渐进的制裁制度。最后，森林当局分享的知识和社区培养的共同知识增强了社区对可持续森林管理的认识。