Journal of Guangxi Normal University(Natural Science Edition) ›› 2025, Vol. 43 ›› Issue (4): 188-200.doi: 10.16088/j.issn.1001-6600.2024081902

• Ecology and Environmental Science Research • Previous Articles     Next Articles

Characteristics and Spatial Distribution Pattern of Ancient Tree Resources in Lijiang River Basin

HUANG Wanling1,2, ZHOU Can3, CHEN Xinyue3, YAO Wei1,2, WANG Guohai3*, ZHOU Qihai1,2*   

  1. 1. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin Guangxi 541006, China;
    2. Guangxi Key Laboratory of Rare and Endangered Animal Ecology (Guangxi Normal University), Guilin Guangxi 541006, China;
    3. College of Chemistry and Bioengineering, Guangxi Minzu Normal University, Chongzuo Guangxi 532200, China
  • Received:2024-08-19 Revised:2024-11-12 Online:2025-07-05 Published:2025-07-14

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Abstract: Exploring the characteristics and spatial distribution pattern of the existing ancient tree resources is of great significance for the conservation of ancient trees and the maintenance of global biodiversity. By combining literature and field survey data,this study firstly analyzed the species composition, distribution area types, structural characteristics, growth status characteristics, and spatial distribution pattern, then explored the composition and currents status of spatial pattern of ancient tree resources in the Lijiang River Basin. The results showed that there are a total of 4 360 ancient trees distributed in the Lijiang River Basin, belonging to 124 species in 82 genera of 40 families, of which 3 species are national first-level key protected plant wild and 8 species are national second-level key protected plant Wild. The composition of ancient trees is mainly composed of tertiary ancient trees, accounting for 84.33% of the total number of trees. The overall growth of the ancient trees was in good condition, and the normal growth of the ancient trees accounted for 94.89% of the total number of trees, and only 3 dead ancient trees were found. The distribution types of families and genera are mainly the Pantropic and the Tropical Asia (India-Malaysia), which is consistent with the geographical location of the Li River Basin. Correlation analysis showed that there was a significant positive correlation between the three variables of tree height, breast circumference and crown width of ancient trees (P<0.01). There are significant differences in the number and diversity index of ancient trees among counties in the Lijiang River Basin. In general, the distribution of ancient trees in the central part of the Lijiang River Basin is less, while the distribution of ancient trees around the basin is more.

Key words: Lijiang River Basin, ancient trees, structure characteristics, species diversity, spatial pattern

CLC Number:  Q948.2
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