人工草地种内种间竞争与生产稳定性

种内种间竞争是研究人工草地极其重要的理论基础，草地生态与生产稳定性是建立人工草地的根本目标。单播人工草地种内竞争尽管是相互的，但主要由密度依赖机制控制着种群动态。资源的数量、质量和分布等特征决定着混播人工草地种间竞争的过程和结局。虽然存在竞争排斥，但生态位相似、竞争能力相当的2～3个草种混播是比较适宜的。要获得人工草地...

Intraspecific/interspecific competition in sowed pasture and the stability of forage production

Study on the intraspecific/interspecific competition is critically important for the research in the field of sowed pasture.For the mono-culture,the intraspecific competition mainly depends on the density.For the mixed sowed pasture,the process and result of competition are determined by the quantity,quality and distribution of the resources.The mixed pasture combined with 2 to 3 species is proper.The integrated practices should be conducted for sustained high productivity and the stability at 3 levels of plant community,animal community and sowed pasture ecosystem should be maintained for the stable production.