广西师范大学学报（自然科学版）2025，Vol.43Issue(4)：188-200,13.DOI:10.16088/j.issn.1001-6600.2024081902
漓江流域古树资源特征及空间格局分析
Characteristics and Spatial Distribution Pattern of Ancient Tree Resources in Lijiang River Basin
摘要
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.关键词
漓江流域/古树/结构特征/物种多样性/空间格局Key words
Lijiang River Basin/ancient trees/structure characteristics/species diversity/spatial pattern分类
农业科技引用本文复制引用
黄婉玲,周灿,陈心悦,姚维,汪国海,周岐海..漓江流域古树资源特征及空间格局分析[J].广西师范大学学报（自然科学版）,2025,43(4):188-200,13.基金项目
国家自然科学基金(32170492,32270504) （32170492,32270504）
广西自然科学基金(2023GXNSFAA026422) （2023GXNSFAA026422）
