Various nontimber forest products (NTFPs) are produced from the forests and woodlands of Yemen. Dragon’s blood tree resin is one of the commercial NTFPs in Yemen and is produced by tapping Dracaena cinnabari trees, which are listed as vulnerable by the IUCN (International Union for Conservation of Nature) Red List. By applying a forest resource assessment, the present study inventoried the D. cinnabari forest with the aim of identifying and evaluating its structure, the harvesting status of the resin, and the current management system. The study was conducted in the Firmihin forest, Socotra Island, Yemen Republic. The forest resource assessment was carried out through a forest inventory by measuring trees from 12 plots following stratified random sampling. The relevant parameters of a total of 819 trees were measured, including the tree height, stem height of lowest branches, height of the highest wound, diameter at breast height (DBH), and presence of wounds. The wounds were measured on a total of 401 trees. Value chain analysis (VCA) was used to clarify the flow of dragon’s blood tree resin from the producers to the local, national, and international markets. Traditional management was examined using questionnaires in the case study area and surrounding villages. There are two tapping techniques: (1) collecting the pure dragon’s blood tree resin and (2) cutting part of the bark along with the pure resin. The second technique resulted in 84% of the trees having wounds. The tappers were mostly from the community in and around the forest. The study found that the traditional management system of tapping dragon’s blood tree resin is not sustainable.

中文翻译：

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也门，索科特拉岛，费米林森林中的龙血树树脂本地管理系统（Dracaena cinnabari Balf。f。）

也门的森林和林地生产各种非木材林产品（NTFP）。龙血树树脂是也门的一种商业NTFP，是通过采摘龙血树制成的，该树被IUCN（国际自然保护联盟）红色名录列为易受伤害的树。通过应用森林资源评估，本研究清点了D. cinnabari目的是确定和评估其结构，树脂的采伐状况以及当前的管理体系。这项研究是在也门共和国索科特拉岛的Firmihin森林中进行的。森林资源评估是通过对森林进行清查来进行的，方法是在分层随机抽样后对12个样地的树木进行测量。测量了总共819棵树的相关参数，包括树高，最低分枝的茎高，最高伤口的高度，乳房高度（DBH）的直径和伤口的存在。在总共401棵树上测量了伤口。价值链分析（VCA）用于阐明龙血树树脂从生产商到本地，国家和国际市场的流动。在个案研究区和周围村庄中使用问卷调查了传统管理。攻丝技术有两种：（1）收集纯龙血树树脂；（2）将树皮的一部分与纯树脂一起切割。第二种技术导致84％的树木受伤。攻丝器主要来自森林内部和周围的社区。研究发现，传统的采血树血脂管理制度是不可持续的。