引种牧草造成生物入侵的现状及原因分析  

Analysis of the present condition and cause of biological invasion by pasture species introduction

作　　者：田雪亮[1] 吴雪平[1] 

机构地区：[1]河南科技学院植物保护系,河南新乡453003

出　　处：《草业科学》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)

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.

关 键 词：牧草 外来杂草 生物入侵 

分 类 号：S54[农业科学—作物学]