Ma Shuyue, Qiang Fangfang, Liu Guangquan, Liu Changhai, Bai Chongyan, Ai Ning
Key Laboratory of Applied Ecology on the Loess Plateau of Shaanxi Higher Education Institutions, College of Life Sciences, Yan'an University, Yan'an 716000, China.
China Institute of Water Resources and Hydropower Research, Beijing 100038, China.
Plants (Basel). 2025 Mar 23;14(7):1006. doi: 10.3390/plants14071006.
A study was conducted on the vascular floras of the Ziwuling Mountains in Shaanxi Province to establish a foundational database, providing data support for the conservation and utilization of the Ziwuling Mountains' plant diversity resources. Based on field surveys and literature references, the composition and geographical elements of the vascular floras in the study area were analyzed. The species richness and floristic similarity coefficients of the study area were compared with other floras on the Ordos Platform. The results were as follows: (1) The vascular floras of the Ziwuling Mountains in Shaanxi Province comprised 120 families, 498 genera, and 965 species, with superrosids and superasterids being significantly dominant. There were 15 dominant families, primarily composed of oligotypic and monotypic genera. In terms of life forms, perennial forbs were the most abundant. (2) At the family level, tropical elements slightly outweighed temperate elements; at the genus level, temperate elements dominated. (3) The study area was rich in rare and endangered species. (4) Compared with other floras on the Ordos Platform, the study area exhibited higher species richness and the greatest similarity with the Liupan Mountain floras. The biodiversity of the Ziwuling Mountains in Shaanxi Province was relatively high, with diverse geographical elements and abundant rare and endangered species resources.
对陕西省子午岭山区的维管束植物区系进行了研究，以建立基础数据库，为子午岭山区植物多样性资源的保护和利用提供数据支持。基于实地调查和文献参考，分析了研究区域维管束植物区系的组成和地理成分。将研究区域的物种丰富度和区系相似性系数与鄂尔多斯台地的其他植物区系进行了比较。结果如下：（1）陕西省子午岭山区维管束植物区系有120科、498属、965种，其中超蔷薇类和超菊类显著占优势。有15个优势科，主要由寡型属和单型属组成。在生活型方面，多年生草本植物最为丰富。（2）在科的水平上，热带成分略多于温带成分；在属的水平上，温带成分占主导。（3）研究区域有丰富的珍稀濒危物种。（4）与鄂尔多斯台地的其他植物区系相比，研究区域物种丰富度较高，与六盘山植物区系的相似性最大。陕西省子午岭山区生物多样性相对较高，地理成分多样，珍稀濒危物种资源丰富。
