大方野生重楼属药用植物资源的分布

摘要

摸清大方县野生重楼属植物资源的种类、分布区域及资源现状,为大方重楼属药用植物资源的人工种植、合理保护及开发利用提供依据,采用实地走访和样本采集鉴定相结合的方法,对大方县28个乡镇野生重楼属植物资源的种类及分布进行调查研究.结果表明:大方县野生重楼资源减少严重,只有13个乡镇有野生重楼属植物分布,且个体多在8株以内;主要分布在海拔1 000～2 000 m的阔叶林和针阔混交林下,种类有七叶一枝花、狭叶重楼、球药隔重楼、云南重楼及毛重楼等5种,以七叶一枝花的数量居多.大方县海拔1 000 m以上、水资源和腐殖层丰富的阅叶林或针阅混交林下较适宜重楼属植物生长.%The species and distribution of Paris genus medicinal plants resources are investigated by the on-site interview and sample identification methods in 28 villages and towns of Dafang County to explore species and distribution area of Paris genus medicinal plants resources and to provide the scientific basis for artificial cultivation,rational protection and development of Paris genus medicinal plants resources in Dafang County,Guizhou.Results:13 villages and towns have distribution of wild Paris genus medicinal plants resources and 1～8 wild Paris genus plants.The wild Paris resources reduces severely in Dafang County.Wild Paris genus medicinal plants are mainly distributed under coniferous and broadleaved mixed forest and broad-leaved forest with an elevation of 1 000～2 000 m.There are 5 species of P.polyphylla var.chinensis,P.polyphylla Smith var.stenophylla Franch,P.fargesii Franch,P.polyphylla var.yunnanensis and P.mairei.The amount of P.polyphylla var.chinensis is in the majority.Paris genus medicinal plants suitably grow under coniferous and broad-leaved mixed forest and broad-leaved forest with an elevation of 1 000～2 000 m and abundant water resources and humus layer.