Abstract
Communities in socio-ecological production landscapes and seascapes are aging and depopulating. While longstanding interdependence of humans and nature in such areas holds crucial hints for sustainable development, they continue to be undervalued by existing economic frameworks. We suspect omission of non-material nature’s contributions to people (NCPs) as a possible reason for this undervaluation and focus on the intangible aspects of human–nature relationships: people’s direct and emotional attachment to their land and interrelationships between close-knit human communities and a thriving natural environment. Field observations on Sado Island, Japan, and literature reviews informed our hypothesis that perceived nature, conceptual human–nature relationships, place attachment, and social relationships contribute to subjective wellbeing. Structural equation modeling of island-wide questionnaire responses confirmed our hypothesis. Nature contributes to wellbeing by enhancing place attachment and social relationships; ecocentrism contributes to greater values of perceived nature. Free-response comments elucidated how local foods and close interpersonal relationships enhance residents’ happiness and good quality of life, as well as how aging and depopulation impact their sense of loneliness. These results lend empirical support to the understanding of human–nature interdependency in socio-ecological production landscapes and seascapes. In assessing their value to local residents and society at large, greater consideration should be given to intangible aspects of human–nature relationships and quality of life.