摘要
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。要获得人工草地持续高产和防止其退化,必须采取综合农作管理措施。从植物群落、动物群落及人工草地生态系统3个层次上维持其生产稳定性,即人工草地只有生态稳定,生产才能稳定。
Study on the intraspecifie/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 distri- bution 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.
出处
《草原与草坪》
CAS
2011年第6期83-86,93,共5页
Grassland and Turf
基金
国家自然科学基金项目(31160262)资助
关键词
人工草地
种内种间竞争
生态与生产稳定性
sowed pasture
intraspecific/interspecific competition
grassland ecological and production stability
作者简介
好斯巴特（1962-），男，蒙古族，内蒙古通辽库伦旗人，本科，实验师。研究方向为草地农业生态系统。E-mail：hs6419@163．com
