梵净山野生鸡爪黄连资源及其伴生植物调查

为了解梵净山野生黄连种质资源现状,采用民族植物学田野调查法和典型样地调查法,对梵净山野生鸡爪黄连主要栖息地进行系统调查.结果表明:梵净山鸡爪黄连主要分布在海拔1300～1700 m的中山常绿、落叶阔叶混交林下水青冈-箭竹林中,主要伴生种子植物有31科50属54种,蕨类植物3科3属3种；乔木层优势种为亮叶水青冈、枫香、黄肉楠、木姜子等,林冠参差不齐,郁闭度0.2～0.4；灌木层优势种为箭竹、茶树、悬钩子、紫楠、黄肉楠等,盖度30％ -60％；草本层优势种类有莎草、冷水花、鸡爪黄连、苦苣苔和毛叶蕨等,地被植物盖度在35％～80％以上.从区系组成的地理成分看,热带、亚热带分布的属占48.0％,温带属占48.0％,其他组成仅为4.0％.梵净山野生鸡爪黄连每个居群的个体数量在31～151株,种群数量小,鸡爪黄连在梵净山已处于严重濒危状态.

Survey on Distribution Status of Wild Coptis chinensis Resources and Associated Plants in Fanjingshan National Nature Reserve

In order to comprehend the germplasm resource of wild Coptis chinensis in Fanjingshan National Nature Reserve,a systematic investigation on the main habitats of wild C.chinensis were conducted based on ethnobotanist theory,combined field study and representative plot survey.The results showed that the wild C.chinensis in Fanjingshan distributed mainly under the mid-montane evergreen and deciduous broadleaved mixed forest where the altitude is 1300-1700 m,and its main associated spermatophyte were composed o...