Study on the types, distribution and harm of invasive alien species in urban park green spaces of Changde City
Through investigation of the urban park green spaces in Changde, it was found that there are 48 species of invasive alien organisms in the area, including 47 species from 19 families of plants and 1 family of animals. There are 8 types of serious hazards. The six families with the most harmful species are Asteraceae, Amaranthaceae, Poaceae, Euphorbiaceae, Convolvulaceae, and Solanaceae, respectively; 29 species were intentionally introduced, accounting for 60.4％, while 19 species were unintentionally introduced, accounting for 39.6％;37 species native to the Americas account for 77.1％, 6 species in Europe account for 12.5％, 4 species in Asia account for 8.3％, and 1 species in Africa accounts for 2.1％;Among the invasive alien species, there were 33 species of annual herbaceous plants accounting for the largest proportion of 68.7％, 12 perennial herbaceous plants accounting for 25.0％, 1 perennial floating herbaceous plant, 1 perennial submerged (emergent) herbaceous plant, and 1 mollusk; Among them, 29 species are widely distributed, accounting for 60.4％; There are 19 species with a small distribution,accounting for 39.6％. At the same time, specific prevention and control measures were proposed for the 8 types of invasive organisms with serious harm.
park green spacesinvasive alien organismshazardsprevention and control
万方数据
维普
