生态学报2025，Vol.45Issue(11)：5452-5465,14.DOI:10.20103/j.stxb.202311242574
衡山表土花粉与植被和气候的关系
Relationships between modern pollen,vegetation,and climate in Hengshan Mountain
摘要
Abstract
Pollen dispersal in mountainous terrain is influenced by multiple factors,resulting in complex distribution patterns.Understanding the vertical distribution of modern pollen and its relationship with vegetation and climate across different regions is crucial for the accurate interpretation and quantitative reconstruction of fossil pollen.This study focused on the typical vertical vegetation types of Hengshan Mountain.A total of 21 surface soil pollen samples were collected along an altitudinal gradient from the summit(1061 m)to the foot(202 m)of the mountain.Pollen analysis and statistical methods were applied,yielding the following key findings:(1)The modern surface soil pollen assemblage of Hengshan Mountain was dominated by tree and shrub taxa,including Pinus,Taxodiaceae,Fagaceae,Oleaceae,and Rosaceae,while the herbaceous taxa were primarily Poaceae,Artemisia,and Cyperaceae.(2)Within this region,Pinus and Artemisia were potentially over-represented,while Taxodiaceae,Rosaceae,Oleaceae,and Rhus demonstrate moderate representativeness.Fagaceae,Lauraceae,Magnolia,Acer,and Poaceae were underrepresented.(3)Surface soil pollen assemblages exhibited clear differences among the four vegetation types,with representative pollen taxa being consistent with surrounding plant communities.Notable differences were observed in the pollen ratios of evergreen broad-leaved tree pollen to deciduous broad-leaved tree pollen(E/D)and Pinus to Taxodiaceae(P/T)across the vegetation types.(4)The primary climatic factor affecting the distribution of surface soil pollen on Hengshan Mountain was the mean annual temperature(MAT).The strong correlation between P/T and MAT suggests that P/T could serve as a useful index for regional pollen-based paleoclimate reconstruction.关键词
衡山/表土花粉/植被/气候Key words
Hengshan Mountain/modern pollen/vegetation/climate引用本文复制引用
李姝明,李泉,秦锋,赵文伟,张以恒,易桂田,任维鹤..衡山表土花粉与植被和气候的关系[J].生态学报,2025,45(11):5452-5465,14.基金项目
国家重点研发计划(2022YFF0801504) （2022YFF0801504）
湖南省自然科学基金项目(2023JJ40099) （2023JJ40099）
国家自然科学基金项目(42107475) （42107475）
湖南省教育厅项目(23B0678) （23B0678）
