生态学杂志2025，Vol.44Issue(12)：3915-3922,8.DOI:10.13292/j.1000-4890.202512.018
牧草多样性及群落抚育时间对牧草抵抗薇甘菊入侵的影响
The influence of species diversity and community nurturing time on the resistance of forage grasses to Mika-nia micrantha invasion
摘要
Abstract
Mikania micrantha,an invasive plant species,causes significant harm in South China.Utilizing plant replacement control can mitigate the detrimental effects of invasive species and yield ecological and economic bene-fits.We examined the effect of species diversity and community nurturing time on resistance of five forage grass spe-cies to M.micrantha invasion,including Medicago sativa,Trifolium hybridum,Stylosanthes guianensias,Lolium perenne,and Dactylis glomerata.The results showed that when M.micrantha and forage grasses grew simultaneous-ly,the forage grass communities had poor control over M.micrantha.When M.micrantha invaded mature forage grass communities(nearly 4 months of nurturing),an increase in forage grass diversity resulted in a decrease in M.micrantha biomass,but the difference was not statistically significant.When inoculated with soils without M.mi-crantha conditioning,an increase in forage grass diversity increased the individual growth of M.micrantha and for-age grasses through soil legacy effect.Biomass of forage grasses was negatively related with that of M.micrantha,and this relationship was particularly strong when M.micrantha invaded mature forage grass communities,indica-ting that mature forage grass communities with substantial biomass could effectively suppress M.micrantha.Aboveground biomass of mature forage grass communities containing S.guianensias ranged from 75.16 to 162.2 g per pot,but that without S.guianensias ranged from 0.2 to 15.66 g per pot.Therefore,planting S.guianensias ei-ther alone or in combination with other forage grass species and nurturing these communities for a period of time(nearly 4 months)can effectively resist M.micrantha invasion.关键词
薇甘菊/入侵抵抗力/牧草/多样性/替代控制Key words
Mikania micrantha/invasion resistance/forage grass/diversity/replacement control引用本文复制引用
黄晶晶,王豪,韩爱衍,黄乔乔..牧草多样性及群落抚育时间对牧草抵抗薇甘菊入侵的影响[J].生态学杂志,2025,44(12):3915-3922,8.基金项目
海南省重点研发项目(ZDYF2024HXGG001)和中国热带农业科学院国家热带农业科学中心科技创新团队项目(1630042025013)资助. （ZDYF2024HXGG001）
