极濒危植物中华水韭屯溪居群调查研究报告

中华水韭（Isoetes sinensisPalmer）为水韭科（Isoetaceae）水韭属（Isoetes）多年生沼泽植物,由于人为干扰日益严重,现分布范围急剧缩小,种群数量稀少,处于濒危状态,已被列为国家一级重点保护野生植物。为科学合理的保护和抢救这一珍稀濒危植物资源提供理论依据,为此对中华水韭屯溪居群的生长环境、面积、株丛数量、水体的pH值、伴生植物种类和生存现状等的调查研究。中华水韭屯溪居群面积500m^2,株丛密度较大,水体pH值为6.55,伴生植物有40余种,其中10种有较高优势度,生存面临多重威胁,保护迫在眉睫。

Investigate of population of Isoetes sinensis,a critically endangered species in Tunxi,China

Isoetes sinensis Palmer（Isoetaceae） is an endangered swampy perennial.Because of human activities,it presently distributes in reducing scope suddenly.Scarcely population made it in critically danger status.It was listed as the national important wild conservative plants in China.In order to provide theoretic basis for protection and rescue such endanger plant scientifically and reasonably,investigation was made for understanding status of Isoetes sinensisin Tunxi like living environment,population,living area,clump of quantity,pH value of water body and the companion plant component.Result showed that area of Isoetes sinensisin Tunxi population occupied are 500m2.The clump of density is bigger.It lives in the water body pH 6.55 with the companion plants 40 species,which 10 of them have the high dominance.