福建农业科技2026，Vol.57Issue(1)：21-26,6.DOI:10.13651/j.cnki.fjnykj.2026.01.004
广东江门古兜山省级自然保护区江门冬青伴生群落特征分析
Analysis on the Characteristics of the Associated Community of Ilex jiangmenensis in the Gudoushan Provincial Nature Reserve of Jiangmen in Guangdong Province
摘要
Abstract
In order to explore the community structure characteristics and survival status of Ilex jiangmenensis,an endemic plant in Gudoushan Provincial Nature Reserve of Jiangmen,Guangdong Province,in November 2025,three 400-square-meter plots were set up to investigate the tree layer,shrub layer and herb layer in the concentrated distribution area of Ilex jiangmenensis in the Gudoushan Provincial Nature Reserve of Jiangmen,and the species composition,important value,diameter class structure and community overall connectivity were analyzed.The results showed that:(1)The species composition of Ilex jiangmenensis community was rich.There were 1 376 living standing trees recorded in the tree layer,belonging to 34 families,50 genera and 72 species.The dominant species was Itea chinensis.In the shrub layer,Rubus reflexus was the dominant specie,and the herb layer was dominated by Gahnia tristis Nees.(2)The diameter class structure of Ilex jiangmenensis showed an inverted"J"'type distribution,and the individuals with the diameter at breast height of 1-5 cm accounted for 71.80%,indicating that the community was well renewed.(3)The overall connectivity analysis showed that the tree layer,shrub layer and herb layer all exhibited the"overall insignificant correlation",and the relationship among the species was relatively independent.(4)A total of 8 strains of Ilex jiangmenensis were recorded in the investigation,with the diameters at breast height ranging from 0.6 to 1.3 cm and tree height from 0.4 to 1.6 meters.The results showed that Ilex jiangmenensis was not dominant in its community,with a small population size,but the community structure was stable.It was suggested that the long-term monitoring and protection of the species and its habitat should be strengthened to maintain its population survival.关键词
广东江门古兜山省级自然保护区/江门冬青/群落结构/总体联结性/植物多样性Key words
Gudoushan provincial nature reserve of Jiangmen in Guangdong/Ilex jiangmenensis/Community structure/Overall connectivity/Plant diversity分类
农业科技引用本文复制引用
潘楚云,栗慧江,梁颖琳,邝春莹,叶自慧,杨诗敏,张蒙..广东江门古兜山省级自然保护区江门冬青伴生群落特征分析[J].福建农业科技,2026,57(1):21-26,6.基金项目
广东江门古兜山省级自然保护区特有和珍稀木本植物调查项目(2025年). （2025年）
