摘要
采用实地踏查和线路调查的方法,对甘肃兴隆山国家级自然保护区内分布的野生维管植物多样性进行了调查,统计保护区内野生维管植物种类和生活型多样性。调查结果表明,该保护区共有野生维管植物95科387属934种,蕨类植物11科18属34种,分别占保护区维管植物科、属、种数的11.58%、4.65%和3.64%;种子植物84科369属900种,裸子植物3科6属11种,仅占保护区维管植物科、属、种数的3.16%、1.55%和1.18%,是保护区种类最少的类群。保护区被子植物的种类最多,共有81科363属889种,占保护区维管植物科、属、种数的85.26%、93.80%和95.18%。大型科和较大科对保护区的属和种的贡献最大,是构成保护区维管植物的主体,其次为中型科和寡种科,单种科对保护区的属和种的贡献最小;保护区的寡种属和单种属的数量是最多的,是保护区属一级多样性的主体,说明本区属的分化明显;中等属和大属的数量较少,但对种类的贡献却很大,共包含385种,这些属的种类广布于保护区,是保护区的优势属;保护区维管植物中,草本植物共计738种,物种多样性最为丰富,占绝对优势。
The Study on wild Tracheophyte diversity in Xinglongshan National Nature Reserve of Gansu Province was investigated by field investigation,and the species and life forms of wild tracheophyte in the protected area were counted.The results showed that there were 934 species of wild Tracheophyte in 95 families,387 genera.Among them,Pteridophyte includes 11 families,18 genera,34 species,accounting for 11.58%,4.65%and 3.64%respectively in the families,genera and species of Tracheophyte in the reserve.A total of 900 species of Spermatophyte belong to 84 families and 369 genera,among which 11 species of Gymnospermae belong to 3 families and 6 genera,only accounting for 3.16%,1.55%and 1.18%of Tracheophyte families,genera and species in the reserve,respectively,apparently was the least species group in the reserve.The angiosperms had the most species in the reserve,which were 889 species of 363 genera and 81 families,accounting for 85.26%,93.80%and 95.18%of the families,genera and species of Tracheophyte in the reserve.The largest contribution to the genera and species of the reserve were made by the families containing more than 20 species,which constituted the main body of the Tracheophyte in the reserve,and the single-species family made the smallest contribution to the genera and species of the reserve.The genera containing only one species were the most numerous in the reserve,which were the main body of the genus in the reserve,indicating that the differentiation of the genus was obvious in the reserve.Medium and large genera are few in number but contribute a great deal to the species,including 385 species,which were widely distributed in the reserve and were the dominant genera in the reserve.Among the Tracheophyte in the reserve,there are 738 species of herbaceous plant,which are the most abundant in species diversity and occupy an absolute advantage.
作者
林宏东
祁军
刘瑞
陈蕾
白彩霞
刘荣
LIN Hongdong;QI Jun;LIU Rui;CHEN Lei;BAI Caixia;LIU Rong(Gansu Xinglongshan National Nature Reserve Management and Conservation Center,Lanzhou 730199,China)
出处
《甘肃林业科技》
2024年第3期39-44,共6页
Journal of Gansu Forestry Science and Technology
基金
甘肃兴隆山国家级自然保护区第二次科学考察项目。
关键词
维管植物
物种多样性
兴隆山
tracheophyte
species diversity
Xinglongshan
