Informant agreement ratio (IAR) analysis.

Vernacular construction uses locally available materials, including plant-based materials. The sustainability of plant use raises concerns. Social evaluation using an ethnobotanical approach gives a clear overview of the sustainability of wild plant harvesting as it incorporates the views of resource users. In Ghana, plant-based materials are commonly used for vernacular housing construction, especially in rural areas. However, the cultural significance of plant species used for vernacular building construction remains unexplored. This study aimed to take an inventory of plant species and use their ethnobotanical indices to evaluate the sustainability of utilization in vernacular building construction. Ethnobotanical data on plant species used for vernacular building construction was collected from 258 respondents in the Adaklu district of the Volta region. Quantitative ethnobotanical analysis revealed that of the 26 plant species identified to be used for vernacular building construction, Bambusa vulgaris, Borassus aethiopum, Elaeis guineensis, Senna siamea, and Azadirachta indica were the most culturally significant and valuable. Bambusa vulgaris had the highest cultural importance, value, and relative importance index. Elaeis guineensis had the highest relative frequency of citations. The findings reveal a high potential for valorizing the culturally important and valuable plant species in the local construction industry. Promoting culturally significant and valuable plant species commercialization presents an opportunity for poverty alleviation at the local level, as most of the species are abundant in the natural environment and are among the commonly planted species for the afforestation program in Ghana.乡土营造多采用当地易得材料，其中不乏植物基材料。植物材料的使用可持续性问题引发广泛关注。采用民族植物学（ethnobotany）方法开展的社会评价可纳入资源使用者的视角，从而清晰阐明野生植物采收的可持续性状况。在加纳，植物基材料常被用于乡土民居营造，尤以农村地区为甚。然而，当前学界尚未对乡土建筑营造所用植物物种的文化价值展开系统研究。本研究旨在梳理乡土建筑营造所用的植物物种名录，并借助民族植物学指标评估其开发利用的可持续性。研究团队从沃尔特地区阿达克卢区的258名受访者处，收集了乡土建筑营造所用植物物种的民族植物学数据。定量民族植物学分析结果显示，在确认可用于乡土建筑营造的26种植物中，青皮竹（Bambusa vulgaris）、扇叶糖棕（Borassus aethiopum）、油棕（Elaeis guineensis）、铁刀木（Senna siamea）以及印楝（Azadirachta indica）是文化价值与应用价值最高的物种。青皮竹的文化重要性、应用价值及相对重要性指数均位列首位，油棕的被提及相对频率最高。研究结果表明，针对这些具有较高文化价值与应用价值的植物物种，当地营造产业可对其进行高值化开发利用。推广此类高文化价值与应用价值植物物种的商业化开发，可为当地实现脱贫攻坚提供契机——这是因为多数受访物种在自然环境中分布广泛，同时也是加纳造林计划中常用的种植树种之一。