额尔古纳国家级自然保护区早春开花植物区系成分分析

Floristic Analysis of Early Spring Flowering Plants in Eerguna National Nature Reserve,Inner Mongolia,China

通过野外调查及查阅相关资料对额尔古纳国家级自然保护区早春开花植物种的组成及区系成分进行分析。结果表明:保护区共有早春开花植物26科54属89种,其中草本种类占据明显优势;早春开花植物属包括9个分布区类型及亚型,温带成分占绝大多数,其中,北温带分布型所占比例最高;种的地理成分中,以温带性质的种和寒带至亚寒带性质的种构成,无热带成分;保护区早春开花植物种类丰富,资源储量大,用途多样,具有重要的保护价值。

An investigation was conducted to analyze the specific composition and floristic elements of early spring flowering plants by field investigation and data statistics in Eerguna National Nature Reserve.There are total 89 species of plants,belonging to 26 families and 54 genera.Among these genera,the herb species are in relative majority.The genera in the region are attributed to 9 areal-types and subtypes,and the amount of temperate elements is the majority in north temperate type.The areal-type of species are composed of the temperate elements and the elements from boreal to subarctic without the tropical elements.In the reserve,early spring flowering plants are characterized by rich species,storage capacity,a wide range of uses and great protection value.