摘要
通过对常德市城区公园绿地的调查发现该地现有外来入侵生物48种,其中植物19科47种,动物1科1种,其中危害严重的有8种.危害种类最多的有6科,分别为菊科、苋科、禾本科、大戟科、旋花科和茄科;有意引进有29种,占60.4％,无意传入有19种,占39.6％;原产于美洲的有37种,占77.1％,欧洲为6种,占12.5％,亚洲为4种,占8.3％,非洲1种,占2.1％;外来入侵生物中一年生草本植物占比最大,为33种占比68.7％,多年生草本植物12种占比25.0％,多年生浮水草本、多年生沉水(挺水)草本和软体动物各1种;其中广布的物种有29种占比60.4％;少量分布的有19种占比39.6％.同时对危害严重的8种入侵生物提出了具体的防除措施.
Abstract
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.
基金项目
湖南省高等学校创新团队项目([湘教通2019]379号)
湖南省自然科学基金(2023JJ50475)
维普
万方数据