首页|Preventive treatments for the invasion of Leucanthemum vulgare Lam.:exploring effects in rangeland ecosystems of Iran
Preventive treatments for the invasion of Leucanthemum vulgare Lam.:exploring effects in rangeland ecosystems of Iran
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Invasive species are increasingly spreading,particularly in rangeland ecosystems.It is essential to evaluate the effectiveness of different methods for controlling invasive plants in these ecosystems.This study aimed to investigate the effects of three strategies-21-year grazing exclusion(21-YES),mowing-grazing in rotation in alternate years(MGRS),and moderate grazing(MGS)-on the change in cover,density,and biomass of Leucanthemum vulgare Lam.(Ox-eye Daisy=OED)and the plant community.To accomplish this,three sites selected for each treatment.In 2021,270 vegetation plots were sampled using a random systematic method.Subsequently,we recorded the density and canopy cover of all growth forms(forbs,grasses,and ferns),the OED biomass,and the ground cover.The results indicated that MGS reduced OED density,OED canopy,and OED biomass.Furthermore,this strategy demonstrated the highest density and canopy cover of the plant community(including total,forbs,grasses,and fems).Additionally,the strongest correlation was observed between the total canopy and the OED density(R2=-0.91,-0.95,-0.94 in 21-YES,MGRS,and MGS,respectively),as well as between the total canopy and the OED canopy(R2=-0.51,-0.98,-0.97 in 21-YES,MGRS,and MGS,respectively).The MGS led to an increase in diversity indices.In general,the grazing strategy has proven to be effective in controlling the spread of invasive OED and has also resulted in an increase in canopy cover,density,and diversity indices of the plant community.The study highlights the importance of ongoing management efforts to control invasive species,with moderate grazing potentially serving as a more practical,culturally accepted,and cost-effective short-term control strategy for widespread rangeland weed infestations.
Mehdi MOAMERI、Sahar SAMADI KHANGHAH、Ardavan GHORBANI、Raoof MOSTAFAZADEH、Abazar ESMALIOURI、Asim BISWAS
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Department of Plant Sciences and Medicinal Plants,Meshginshahr Faculty of Agriculture,Member of Water Management Research Center,University of Mohaghegh Ardabili,Ardabil 5619911367,Iran
Department of Range and Watershed management,Faculty of Agriculture and Natural Resources,University of Mohaghegh Ardabili,Ardabil 5619911367,Iran
School of Environmental Sciences,University of Guelph,Ontario N1G 2W1,Canada
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