脊线对武夷山针阔混交林群落特征的影响
范敦锦 , 高亮 , 周建广 , 陈世品 , 林文俊
山西大学学报(自然科学版) ›› 2025, Vol. 48 ›› Issue (04) : 839 -848.
脊线对武夷山针阔混交林群落特征的影响
Effect of Ridge Line on Community Characteristics of Mixed Forest in Wuyi Mountain
To investigate the community characteristics of mid-mountain needle-leaved and broad-leaved forests developed along ridge lines, a vegetation survey was conducted in Wuyishan National Park using the typical quadrat method. By statistically analyzing the species composition, abundance, species diversity, and biomass of understory vegetation, the variation trends of species diversity along the ridge line with area and the biomass changes on both slope aspects were examined to reveal partial features of the ridge line forest community. The results indicated that the ridge line quadrats contained a total of 67 vascular plant species from 43 genera and 24 families, including 2 gymnosperm species from 2 genera and 2 families, and 64 angiosperm species from 40 genera and 21 families, totaling 2 889 individuals. The minimum survey area for the quadrats was 1 500 m². The dominant species in the tree layer, shrub layer, and herb layer were Rhododendron latoucheae, Eurya nitida, and Indocalamus tessellatus, respectively. Significant differences were observed in species richness indices between the two slope aspects of the ridge line. Aboveground biomass exceeded belowground biomass, and the biomass on the southeastern slope was greater than that on the northwestern slope. The morphological characteristics of ridge line plants generally included smaller individual diameters at breast height (average 5.55 cm), lower heights (average 6.79 m), and higher stand density (1.45 individuals/m²) compared to non-ridge line forest communities, forming a single canopy layer. These features exhibited uniqueness in species composition and structure, contrasting sharply with mid-mountain dwarf twisted forests of similar species composition.This paper systematically reveals for the first time the unique structural characteristics of forest communities along the Wuyi Mountain ridgeline, filling the research gap on the influence mechanisms of ridgeline topographic factors on mountain forest ecosystems.
森林群落 / 脊线 / 武夷山国家公园 / 物种多样性 / 生物量
forest community / ridge line / Wuyishan national park / species diversity / biomass
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福建省教育厅中青年教师教育科研项目(科技类)(JAT210069)
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