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入侵植物三叶鬼针草与近缘本地种金盏银盘的可塑性研究进展

郑欣颖,薛立*   

  1. (华南农业大学林学与风景园林学院, 广州 510642)
  • 出版日期:2018-02-10 发布日期:2018-02-10

Research progress about phenotypic plasticity of exotic invasive speciesBidens pilosa and a congeneic native speciesB. biternate.

ZHENG Xin-ying, XUE Li*   

  1. (College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China).
  • Online:2018-02-10 Published:2018-02-10

摘要: 入侵植物三叶鬼针草(Bidens pilosa)是与农作物竞争的恶性杂草,而我国鲜有对其入侵能力的系统总结。作者综述了三叶鬼针草及其近缘本地种金盏银盘在不同环境下表型可塑性的研究进展,比较了两者在不同光照和温度、不同埋土深度的种子萌发概况,不同光照、水分、温度及土壤养分环境条件下幼苗生物量分配特点及其繁殖特性,阐明了三叶鬼针草成功入侵的机制包括快速繁殖能力、较广的生态适应性、根系分泌物的化感作用等。最后,对三叶鬼针草未来的研究进行了展望,并总结了三叶鬼针草的防控策略。

关键词: 雨强, 径流模数, 土壤侵蚀模数, 生物结皮, 初始产流时间

Abstract: Bidens pilosa L., an exotic invasive species,is one of worst weeds in many croplands in southern China. However, there are few systematic summaries of its invasion capability inChina. Here, we reviewed the research progress about phenotypic plasticity of exotic invasiveB. pilosa and a congeneic native speciesBidens biternate (Lour.) under different environmentalconditions. The differences of seed germination between those two species under different light conditions, temperatures and soil depths were discussed. Their biomass allocation patterns andreproductive characteristics were compared under different light, water, temperature and soil nutrient conditions. The mechanism of successful invasion ofB. pilosa includes rapid propagation,wide ecological adaptation, and allelopathy of root exudates. Finally, prospects about B. pilosa for further studies were proposed and methods for management and control strategies  of B. pilosa invasion were summarized.

Key words: rainfall intensity, runoff modulus, biological soil crust, initial runoff generation time, soil erosion modulus