Chin J Plant Ecol ›› 2023, Vol. 47 ›› Issue (8): 1182-1192.DOI: 10.17521/cjpe.2022.0239

Special Issue: 植被生态学

• Data Paper • Previous Articles    

Distribution, characteristics and classification of Caryopteris mongholica communities in northern China

YU Xiao, JI Ruo-Xuan, REN Tian-Meng, XIA Xin-Li, YIN Wei-Lun, LIU Chao*()   

  1. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
  • Received:2022-06-08 Accepted:2023-02-22 Online:2023-08-20 Published:2023-02-23
  • Contact: *LIU Chao(
  • Supported by:
    National Natural Science Foundation of China(31600484);National Natural Science Foundation of China(31770649)


Caryopteris mongholica is a key protected wildflower plant distributed in typical steppe, desertified steppe and desert areas. But there is a lack of research on its community characteristics and classification. This paper aims to study the distribution, characteristics and classification of C. mongholica in northern China and provide a reference for further protection and management. From 2018 to 2021, a total of 40 representative C. mongholica sites were selected in northern China, and their community characteristics were studied using the sample plot survey method. Results showed: (1) Caryopteris mongholica is concentrated in the eastern, central and western of Nei Mongol Plateau, the northern Loess Plateau, Hexi Corridor, Qilian Mountains and other northwest temperate desert or steppe areas in China, and is often the dominant or associated species in the communities. (2) According to the survey of 40 sample sites, a total of 149 species of seed plants were recorded, belonging to 107 genera of 37 families, among which 31 communities with C. mongholica as construction or dominant species and 140 species of seed plants were recorded, mainly Compositae, Leguminosae and Gramineae. Among them, 39 species were shrubs, dwarf- and semi-shrubs, 76 species were perennial herbs and 24 species were annuals and biennials. In the classification of species presence, 87.94% were occasional species with frequency distribution less than 20%. Wide-range xerophytes occupied the advantage (63.12%) in the water ecological types. Middle Asia elements (26.24%) were the major floristic geographic elements. (3) Based on the life form and dominance of species, the 31 C. mongholica communities were divided into 3 association groups, C. mongholica - herb association group, C. mongholica + shrub - herb association group and C. mongholica + shrub association group, which were further subdivided into 19 associations. (4) Longitude and annual precipitation significantly influence the distribution of C. mongholica communities and species diversity.

Key words: Caryopteris mongholica, population distribution, community characteristic, species diversity