入侵杂草一年蓬研究进展

Advances on the Invasive Weed,Erigeron annuus

一年蓬[Erigeron annuus(L.)Pers.]原产于北美洲,广泛分布于北半球温带和亚热带地区,具有强大的入侵和适应能力,被我国生态环境部列入第三批外来入侵物种名单。一年蓬在我国普遍生长,通过向环境中释放化感物质,影响本土植物生存的微环境,造成本地物种多样性降低,经济作物减产,已严重影响我国农林业的发展。本文从生物学特性、化学成分、入侵机制、防治与利用等方面阐述一年蓬的研究进展,以期为进一步研究一年蓬的入侵机理、防治及应用提供参考。

Erigeron annuus(L.)Pers.,originating from North America,is widely distributed in temperate and subtropical regions of the northern hemisphere.It has strong invasion ability and adaptability.The Ministry of Ecology and Environment of China listed it in the third group of invasive alien species.E.annuus infesting many regions in China affected the microenvironment of native plants,reduced the local species diversity and decreased the yield of cash crops by releasing allelochemicals to its environment.It has seriously affected the development of agriculture and forestry in China.In this paper,advances in the biological characteristics,chemical composition,invasion mechanisms,prevention,and utilization of E.annuus are reviewed,providing a reference for further research on the invasion mechanism,prevention and application of E.annuus.