湖北农业科学2026，Vol.65Issue(3)：42-49,8.DOI:10.14088/j.cnki.issn0439-8114.2026.03.007
磷限制下入侵与本土植物叶片磷组分分配策略的差异及其生态适应性
Differences in leaf phosphorus component allocation strategies and ecological adaptability between invasive and native plants under phosphorus limitation
摘要
Abstract
To reveal the differences in adaptation mechanisms between invasive plants and native plants in phosphorus-limited envi-ronments,common Fabaceae and Myrtaceae invasive plants(Acacia mangium,Eucalyptus grandis×urophylla)and native plants(Erythrophleum fordii,Syzygium rehderianum)in South China were selected.By establishing a background phosphorus treatment(phosphorus limitation)and a phosphorus addition treatment,their growth rate,leaf functional traits,and the content and allocation proportion of five phosphorus components(inorganic phosphate,small-molecular organic phosphorus,nucleic acid phosphorus,mem-brane lipid phosphorus,and residual phosphorus)were compared.Phenotypic plasticity was assessed using principal component analy-sis(PCA).The results showed that invasive plants had higher growth rates,photosynthetic nitrogen-use efficiency,and photosynthet-ic phosphorus-use efficiency under both the background phosphorus treatment and the phosphorus addition treatment.Invasive plants typically allocated phosphorus to inorganic phosphate and nucleic acid phosphorus components to increase growth rate and enhance photosynthetic nitrogen and phosphorus use efficiency.In contrast,native plants tended to allocate phosphorus to membrane lipid phos-phorus,which might be related to maintaining stress response and membrane system stability.Eucalyptus grandis×urophylla exhibited a flexible phosphorus utilization strategy,enabling adaptation to different phosphorus environments,whereas Acacia mangium was specif-ically adapted to low-phosphorus environments,potentially exacerbating soil phosphorus depletion through efficient phosphorus acqui-sition and threatening local(Guangzhou City)biodiversity.Southern China was a global biodiversity hotspot that,despite its rich biologi-cal diversity,faced widespread soil phosphorus limitation.In ecological restoration and vegetation establishment efforts,priority was given to the introduction and application of native plant species to enhance ecosystem stability and strengthen biodiversity conservation.关键词
磷限制/入侵植物/本土植物/叶片磷组分/分配策略差异/生态适应性Key words
phosphorus limitation/invasive plants/native plants/leaf phosphorus components/differences in allocation strategies/ecological adaptability分类
农业科技引用本文复制引用
范英旭,王法明,闫茹,李明峰..磷限制下入侵与本土植物叶片磷组分分配策略的差异及其生态适应性[J].湖北农业科学,2026,65(3):42-49,8.基金项目
贵州省教育厅高等学校研究项目(青年项目)(黔教技[2022]330) （青年项目）
贵州省科技计划项目(黔科合基础-ZK[2023]一般024) （黔科合基础-ZK[2023]一般024）
