Overview and countermeasures of invasive alien species in forest,grassland and wetland ecosystems in Northeast China
On the basis of investigating the sources of some pests in the Northeast China,56 invasive alien species were selected as the main species in the forest,grassland and wetland ecosystems of the Northeast China,and their invasion characteristics were analyzed.The results showed that the origin place where the invasive alien species with the maximum number was North America,and the invasion species in Northeast China was generally increasing.The invasion pathways of these invasive alien species were mainly unintentional introduction,and the invasion places were mainly in Liaoning province.The representative species in forest,grassland and wetland ecosystems were in invaded habitat.Eighteen invasive alien species were selected out from 56 species as important species in the forest,grassland and wetland ecosystems of Northeast China,and their importance was evaluated.According to the stage of each invasive in process,prevention and control management strategies were proposed to prevent invasion,prevent spread and restrain harm.Three suggestions were proposed to improve the theory of invasion biology,and four suggestions were proposed to enhance the prevention and control capabilities of invasive alien species in Northeast China.
invasive alien speciesNortheast Chinaforest ecosystemgrassland ecosystemwetland ecosystemprevention and control strategy
国家科技期刊平台
NSTL
万方数据
维普
