Impacts of exotic plant invasions on terrestrial ecosystem below-ground carboncycling and carbon pool Invasive effects of Ageratina adenophora Sprengel (Asteraceae)on soil microbial community and physical and chemical properties Effects of exotic plant Ageratina adenophora invasion on mycorrhizal fungal community Allelopathic effect of Ageratina adenophora (Spreng.) leaf litter on four herbaceous plants in invaded regions Invasion of exotic Ageratina adenophora Sprengel. alters soil physical and chemical characteristics and arbuscular mycorrhizal fungus community Discussion on allelopathy mechanism of exotic plant invasion Reviews on the impacts of invasive plant on ecosystem productivity