The effective implementation and development of conservation schemes to which participation of forest owners is voluntary, requires an understanding of forest owners’ views on measures to safeguard forest biodiversity. The Forest Biodiversity Program for Southern Finland is currently the most important instrument of voluntary forest conservation in Finland. The aim of this study is to explore what kind of methods the forest owners are willing to implement to safeguard biodiversity in their own forests and to identify forest owner groups based on these views. The aim is also to compare forest owners’ values, attitudes, endorsement of an ecological worldview and objectives for forest ownership as well as the background characteristics in these groups. The data were collected in 2015, by a nationwide mail survey sent to 3000 Finnish family forest owners (n = 1035). Five forest owner types were identified: Conservationists, Moderate conservationists, Compensation oriented, Promoters of biodiversity through forest management and Uninterested. Previous experience of implementation of voluntary measures to safeguard biodiversity and positive attitudes towards conservation were important in explaining the willingness to adopt conservation measures. The results can be utilized in developing voluntary conservation programs and in targeting advisory services related to biodiversity protection to different forest owner groups more accurately. The results support the need for flexible voluntary conservation programs, including a large variety of mechanisms to protect nature values in family owned forests.

森林所有者自愿参加的保护计划的有效实施和发展，需要了解森林所有者对保护森林生物多样性的措施的看法。芬兰南部的森林生物多样性计划目前是芬兰自愿性森林保护的最重要手段。这项研究的目的是探索森林所有者愿意采取哪种方法来保护其自己森林中的生物多样性，并根据这些观点确定森林所有者群体。目的还在于比较森林所有者的价值观，态度，对生态世界观的认可，森林所有权的目标以及这些群体的背景特征。数据收集于2015年，通过全国邮件调查发送给3000名芬兰家庭森林所有者（n = 1035）。确定了五种森林所有者类型：环境保护主义者，中度保护主义者，以补偿为导向，通过森林管理促进生物多样性和无趣。在解释自愿采取保护措施的意愿方面，先前执行保护生物多样性的自愿措施的经验以及对保护的积极态度非常重要。研究结果可用于制定自愿保护计划，以及将与生物多样性保护相关的咨询服务更准确地针对不同的森林所有者群体。结果支持需要灵活的自愿性保护计划，包括各种各样的机制来保护家庭拥有的森林中的自然价值。