宽阔水国家级自然保护区重点保护野生植物优先保护序列研究

Conservation Priorities for Plants in Kuankuoshui National Nature Reserve

通过对宽阔水国家级自然保护区重点保护植物的种类、分布、生境、数量、保护与利用现状的调查,采用遗传价值、生境类型、资源量、保护等级及利用价值5个组合指标,建立了定性与定量相结合的野生植物保护价值评价体系,开展优先保护序列研究,结果表明:(1)宽阔水自然保护区有重点保护植物23种,其中,国家一级保护植物4种,国家二级保护植物7种,省级保护植物12种;(2)保护区范围内总体上濒危系数较高的主要集中在伯乐树、楠木、峨眉含笑等国家重点保护植物,省级保护植物次之。(3)在空间分布上以中心管理站、元生坝管理站为水平分布的集中分布区,以1 100~1 500 m为垂直分布的集中分布区,多数种得到了有效保护,部分种受危现象较为突出,应加强保护。

Through investigating the species,distribution,habitat,surveys,quantity,the conservationand utilization status of the plant protection in Kuankuoshui National Natural Reserve,adopting 5 composite index genetic value,habitat types,reserves,degree of protection and utilization value,established the combination of qualitative and quantitative of the evaluation system of conservation value of wildplants and carried out the research on priority protection sequence,and the results showed that ： （ 1）There are 23 species of protection plants in Kuankuoshui National Natural Reserve,including four kindsof the first class national protection plants,seven kinds of the second class national protection plants andtwelve kinds of provincial protection plants;（ 2） Overall,within the scope of Reserve, the highly endangered factors are mainly concentrated in the national protected plants which including Bretschneiderasinensis, Phoebe zhennan, Michelia wilsonii and so on,and followed by the provincial protection plants.（ 3） In the spatial distribution, concentration in the horizontal distribution area is center management station and Yuanshengba station,the vertical distribution is concentrated at an elevation of 1100 - 1500 meters,most of the species have been effectively protected,and the dangerous phenomenon of part of thespecies is comparatively outstanding,and the protection should be strengthened.