棘豆属植物的危害性及其控制对策初探

Primary study on the harmfulness of Oxytropis and its control strategy

棘豆属植物对草地畜牧业的危害性主要表现在:与优良牧草竞争水肥、光照及空间,使草地植物学成分简化,生物多样性减少,抗逆性下降,草地退化加速,使用年限缩短,生产率和利用率降低。同时引起家畜中毒、繁殖性能减弱及畜种改良难度增大。认为目前棘豆控制应从草地农业生态系统的整体出发,以生态学理论为指导,生态工程控制为基础,生物控制为中心,物理防治、科学管理及政策引导为辅助和补充手段,兼顾开发利用,化学防治为应急措施的综合控制体系。

The harmfulness of Oxytropis to grassland was that it competed with good forages in water, nutrients, sunlight and space, simplified the species components on the grassland, reduced biodiversity and stressresistance, increased grassland degradation and decreased productivity It can also poison livestock and reduce their fertilities The authors think that Oxytropis control should be based on agrograssland ecosystem, directed by ecological theory and focused on biological control, supplemented with physical control, scientific management, policy instruction, and chemical control at dire need, establishing a comprehensive control system 