Nitrogen addition frequency and propagule pressure influence Solidago canadensis invasion into native plant community
作者机构：The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland AdministrationSchool of Ecology and Nature ConservationBeijing Forestry UniversityBeijingChina
出 版 物：《Ecosystem Health and Sustainability》 (生态系统健康与可持续性（英文）)
年 卷 期：2022年第8卷第1期
页 面：342-351页
核心收录：
基 金：This work was supported by the National Key R&D Program of China[2021YFC2600400] Fundamental Research Funds for the Central Universities[2015ZCQ-BH-01] China Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07602-004-003] National Natural Science Foundation of China Zhejiang Provincial Ten Thousand Plan for Young Top Talents[2018R52016]
主 题：clonal plants invasiveness nitrogen addition level propagule number
摘 要：Introduction:Propagule pressure(i.e.,the number of propagules)has long been recognized to play an essential role in plant *** it is not clear whether propagule pressure influences the invasion of exotic plants into native plant communities when different frequencies of nitrogen are ***:We established an experiment with three plant communities that included native plant communities alone(four grasses,two legumes and two forbs)or native plant communities with one or five invasive plants,Solidago canadensis,under three frequencies of nitrogen addition(no addition or low or high addition with the same amount).Results:High propagule pressure significantly enhanced the biomass and relative dominance index of ***,high propagule pressure only decreased the total and aboveground biomass of the ***,the competitive effect between *** and the native community and biomass of the whole native community varied according to different ***:Overall,high propagule pressure encouraged invasion by ***,while alow nitrogen frequency was advantageous for the native community to resist invasion in this *** results provide a scientific basis to manage and control the invasion of ***.
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