The activities of the artisanals and small-scale miners in Nasarawa state, Nigeria, are increasing daily without considering the loss of biodiversity, which has continuously disrupted ecological functions and environmental balance. The study aimed at investigating the effect of tantalite mining activities on flora diversity. Three study sites were selected for floristic data collection, comprising tantalite mining site A situated in Azara, Awe LGA; tantalite mining site B situated in Tunga, Awe LGA; and referred site C situated along the Makurdi-Obi Road, Lafia LGA. Eight plots of 20 × 20 m were systematically placed along two transect lines of 1000 m with 500 m distance apart. The total numbers of 32 plant species, at the ratio of 11:20:21 individual species, were found in sites A, B, and referred site C, respectively. Tantalite mining site A showed 46% rare herbs dominating the site, with an introduction of new non-native species of Jateorhiza spp. and Hyptis suaveolens, presenting a significantly high number of individuals (p ˂ 0.0069). Tantalite site B, Tunga, had 50% reductions of several indigenous tree species such as Daniellia oliveri and Vitex doniana, while site A had 75% reduction of tree species. Therefore, the floristic diversity in site A endured a higher degradation than in site B. The indigenous species in site A were almost completely replaced with problematic weeds, invasive weed species, and non-native plant species. The tree diversities in sites A and B were seriously threatened, and H. suaveolens has been regarded as a potentially invasive plant species in Nasarawa state, Nigeria.

在不考虑生物多样性丧失的情况下，尼日利亚纳萨瓦瓦州的手工业者和小型矿工的活动每天都在增加，而生物多样性的丧失一直在破坏生态功能和环境平衡。该研究旨在调查钽矿开采活动对植物群落多样性的影响。选择了三个研究区进行植物数据收集，包括位于Awe LGA的Azara的钽矿开采区A；位于Awe LGA Tunga的钽矿开采场B; 以及位于拉菲亚LGA Makurdi-Obi路上的推荐站点C。沿着两条1000 m的相交线（相距500 m）系统地放置了8个20×20 m的地块。在地点A，地点B和推荐地点C中分别发现了32种植物，总数为11:20:21。Jateorhiza spp。和山香，呈现出高显著数目的个体的（p ˂0.0069）。钽金属矿场B，Tunga，减少了几种本地树种（例如Daniellia Oliveri和Vitex doniana）的50％减少，而站点A减少了75％的树种。因此，地点A的植物多样性比地点B的退化程度更高。地点A的本地物种几乎完全被有问题的杂草，侵入性杂草物种和非本地植物物种所取代。在站点A和B树多样性受到严重威胁，H.木樨一直被视为在纳萨拉瓦州，尼日利亚潜在的入侵植物物种。