生物资源2025，Vol.47Issue(1)：60-67,8.DOI:10.14188/j.ajsh.20241009001
甘肃莲花山国家级自然保护区种子植物多样性及区系特征
Diversity and flora characteristics of seed plants in Lianhua Mountain National Nature Reserve,Gansu Province
摘要
Abstract
Based on an in-depth investigation of the Lianhua Mountain National Nature Reserve in Gansu Province and relevant literature,statistical analysis was conducted on the diversity of seed plants in Lianhua Mountain.Using R/T values and cluster similarity analysis methods,quantitative analysis and comparison were conducted on the floral charac-teristics of seed plants in Lianhua Mountain and their relationship with seed plant flora in 6 neighboring regions.The re-sults showed that Lianhua Mountain has a rich variety of plant species,with a total of 892 species of seed plants belonging to 348 genera in 85 families,including 11 species of gymnosperms belonging to 6 genera in 3 families and 881 species of angiosperms belonging to 342 genera in 82 families.The phenomenon of dominant family and genus in protected areas is obvious.The seed plant flora is mainly composed of temperate components(R/T=0.12),especially dominated by northern temperate components,reflecting typical temperate characteristics.At the family level,tropical components ac-count for 53.49％and temperate components account for 44.18％.At the genus level,tropical components account for only 8.91％,while temperate components account for 76.59％.This also reflects the transitional characteristics of the re-gion from temperate to tropical zones.The results of cluster analysis showed that Lianhua Mountain has the highest simi-larity with Xinglong Mountain and Duoer Nature Reserve,both belonging to the Qilian Mountains,while its similarity with Baishuijiang and Xiaolong in the Qinling Mountain is relatively low.关键词
甘肃莲花山/种子植物/植物区系/R/T值/聚类分析Key words
Gansu Lianhua Mountain/wild seed plant/flora/R/T value/cluster analysis分类
农业科技引用本文复制引用
曹疆,刘晓娟,李琴霞,刘改香,马玉祥,王庆霞,赵雅,张红芳..甘肃莲花山国家级自然保护区种子植物多样性及区系特征[J].生物资源,2025,47(1):60-67,8.基金项目
2023年提前批中央财政国家级自然保护区建设项目-保护区综合科学考察(2023zfcg00990) （2023zfcg00990）
