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宁夏外来入侵菊科植物种类与分布现状
Specie and Distribution Characteristic of Alien Invasive Asteraceae Plants in Ningxia
【摘要】 为了明确宁夏境内外来入侵菊科植物的现状,为当地外来入侵植物防控、生物多样性保护与生态安全管理提供依据,于2022—2023年进行野外实地踏查,并结合文献与数据库查阅,对宁夏全境外来入侵菊科植物进行调查分析。结果表明:宁夏有外来入侵菊科植物共25种,隶属于20个属;生活型一共有4种,其中1年生草本植物的种类最多,有12种,占总数的48%,1年生或多年生的种类最少,仅有2种,占总数的8%;危害程度为恶性入侵类有5种,严重入侵类有4种,局部入侵类1种,一般入侵类6种,有待观察类9种;起源于北美洲的最多,占总数的56%,其次是欧洲,非洲地区最少,分别占总数的16%和8%;有意引入的有15种,占总数的60%,无意引入的有10种,占总数的40%;种类分布总体呈现出南多北少的趋势。综上,宁夏地区外来入侵菊科植物中有意引入的占比较多,危害程度加重,除加强对外来入侵植物的监测外,应重点对宁南地区及来源于北美洲的菊科植物进行管控。
【Abstract】 In order to clarify the current situation of alien invasive Asteraceae plants in Ningxia and provide a basis for prevention and control of local alien invasive plants, biodiversity protection and ecological security management, a 2022-2023 field survey, along with literature and database research, was conducted. This study found 25 alien invasive species across 20 genera, comprising 4 life forms—mostly annual herbs(48%). Five species were malignantly invasive, four seriously, one locally, six generally, and nine under observation. Most originated from North America(56%),followed by Europe, with Africa the least(16% and 8%,respectively). Intentional introductions accounted for 60%(15 species),and unintentional 40%(10 species). Species were more prevalent in southern Ningxia. In conclusion, intentional introductions are a major concern, with harm increasing. Monitoring and control efforts should focus on southern Ningxia and North American species.
【Key words】 alien invasion; Asteraceae plant; life form; degree of harm; distribution area;
- 【文献出处】 杂草学报 ,Journal of Weed Science , 编辑部邮箱 ,2025年02期
- 【分类号】S45
- 【下载频次】20