四川九顶山自然保护区药用植物资源及多样性特征分析

Analysis of Medicinal Plant Resources and Diversity Characteristics in Jiudingshan Nature Reserve of Sichuan Province

四川九顶山自然保护区所在区域是青藏高原向四川盆地过渡的山地之一,山体高大,垂直生境变化明显,海拔从700 m攀升到至5 000 m,孕育了丰富的药用植物资源。调查共记录野生药用植物95科201属239种。在种属构成多样性上,大科(21种以上)较多,占总科数的26.32%,中等科(6~10种)相对较少,占总科数的10.53%;大属(21种以上)优势明显,占总属数的46.7%。在生活型多样性上,草本药用植物占有明显的优势,共有145种,占总种数的60.67%。研究表明:九顶山自然保护区药用植物种类丰富,药用植物生活型、功效等类型多样,具有科研、保护和利用价值。

The Jiudingshan Provincial Nature Reserve in Sichuan is located in one of the mountainous regions, which are the transition areas from the Qinghai-Tibet Plateau to the Sichuan Basin. The mountains are tall and climb from 700 m to nearly 5 000 m. The vertical habitat changes significantly, which breeds abundant medicinal plants resources. Totally 239 species of medicinal plants belonging to 201 genera and 95 families were found in Jiudingshan Nature Reserve. In term of species and genus diversity, there were more larger families(over 21 species), accounting for 26.32% of the total families. The middle families(6~10 species) were relatively fewer, accounting for 10.53% of the total families.The largest genera(over 21 species) had obvious advantages in quantity, accounting for 46.7% of the total number of genera. In term of the diversity of life forms, herbal medicinal plants(145 species) were dominated, accounting for60.67% of the total species. Our study showed that Jiudingshan Nature Reserve was rich in species of medicinal plants,with various types of growth types and functions, which had great valuables for scientific research, protection and utilization.