Chin J Plant Ecol ›› 2021, Vol. 45 ›› Issue (1): 96-103.DOI: 10.17521/cjpe.2020.0237

Special Issue: 植被生态学

• Data Paper • Previous Articles    

Characteristics of different plant communities in the Dashiwei Tiankeng group, Guangxi, China

YU Yan-Mei1,2, HUANG Lin-Juan1,2, XUE Yue-Gui1,2,*()   

  1. 1College of Life Sciences, Guangxi Normal University, Guilin, Guangxi 541006 China
    2Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi 541006, China
  • Received:2020-07-16 Accepted:2020-09-27 Online:2021-01-20 Published:2021-01-14
  • Contact: XUE Yue-Gui
  • Supported by:
    National Natural Science Foundation of China(31960047)


Dashiwei Tiankeng group is rich in plant diversity resources. In order to further understand the plant community characteristics of the Dashiwei Tiankeng group, a total of 25 sample plots were set up in different positions (mouth pit, waist pit, bottom pit) and outside the pit in the Dashiwei Tiankeng group. 269 species of vascular plants belonging to 176 genera and 89 families were investigated by the sampling method, and Lauraceae, Rosaceae, Urticaceae and so on are the most abundant families in the community. The stratification is obvious and the distribution of dominant species was more uniform in each layer of the community. Among them,Manglietia aromatica, Choerospondias axillaris, Handeliodendron bodinieri were dominant species in the tree layer; Metapanax davidii, Itea yunnanensi were dominant species in the shrub layer, and the dominant herb layer is Elatostema. The seasonal phase is obvious of the community. It is mainly evergreen and deciduous broad-leaved mixed forest, with the evergreen broad-leaved forest at the bottom pit and the deciduous broad-leaved forest at the edge of mouth pit. The life form spectrum of the community is 55.76% for phanerophytes, 29.74% for aboveground plants, 6.69% for aboveground plants, 5.21% for cryptophytes and 2.60% for annual plants. The characteristics of the community types, composition and structure of Tiankeng were analyzed in this paper, which provided basic information for studies of plant communities in Dashiwei.

Key words: Dashiwei Tiankeng group, plant community, species composition, community structure