摘要
分析了引种牧草造成杂草入侵的原因:难以科学地评价牧草的潜在入侵风险性,造成盲目引种;牧草具有入侵杂草的生物学特征;引种气候相似性原则利于牧草成为入侵杂草;缺乏天敌控制利于牧草成为入侵杂草;种植制度利于牧草成为入侵杂草。
Concept of biological invasion, pasture species introduction and exotic weeds invasion have been introduced. Exotic weeds with harmfulness have been reviewed. Cause of biological invasion ： difficult to evaluate the latent risk of pasture invasion which induces to blindnessful introduction; pasture possesses the biological characteristics of invasive weeds; principle of climate comparability is propitious to pasture turning into invasive weeds; absence of natural enemy control is propitious to pasture turning into invasive weeds; planting system is propitious to pasture turning into invasive weeds.
出处
《草业科学》
CAS
CSCD
2007年第9期70-74,共5页
Pratacultural Science
基金
河南科技学院重点科研项目(040104)
关键词
牧草
外来杂草
生物入侵
pasture
exotic weeds
biological invasion
