民勤县外来植物多样性调查

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中图分类号Q948 文献标识码A 文章编号 1007-7731（2025）12-0041-04

DOI号 10.16377/j.cnki.issn1007-7731.2025.12.011

Investigation on the exotic plant's diversity in Minqin County

YANG Jianmei12ZHANG Chunhua³XU Jinfeng1，2 （'School of Pharmacy，Wuwei Occupational Collge， Wuwei 733ooo， China; 2 Wuwei Engineering Research Center for Identification and Development of Traditional Chinese Medicine， Wuwei 733000， China; 3Department of Neurology， Wuwei Tumor Hospital， Wuwei 733000， China）

AbstractTo clarifythe current distribution status of exotic plants in Minqin County，Gansu Privince， methods such asrouteinvestigation and plot investigation wereadopted to analyze thespecies composition，family and genus composition，origin distribution，and introduction purpose of exotic plants.Theresults showed thatthere were atotal of 183 species of exotic plants in the studyarea，belonging to134 generaand48families，among whichangiosperms had an absolute advantage.The Compositae was the dominant familyof exotic plants，with 25 species，accounting for 13.66% of the total species.Brasica and Populus were thedominant genera of exotic plants，each with 6 species，acounting for 3.28% of the total genera.There were many species of exotic plants from Asia，with 86 species，accounting for 46.99% of the total number of exotic plants.More of them were introduced asedible，ornamental and greening plants，accounting for 31.15% ， 23.50% ，and 16.39% of the total species respectively. The introduction of exotic plants has enriched the species diversity in the study area and promoted the construction of the ecological environment.

Keywordsexotic plants; species composition; dominant families and genera; invasive risk

外来植物是指在某一特定区域内未自然出现，而由于直接或间接的人类活动被引入的物种、亚种或较低级的分类群体。（剩余5776字）