刈牧对草原植物的影响  

Influence of Defoliation and Grazing on Range Plant.

作　　者：汪诗平[1] 

机构地区：[1]中国科学院植物研究所

出　　处：《生态学杂志》2000年第6期34-39,共6页Chinese Journal of Ecology

基　　金：国家"九五"攻关项目!( 96-0 1 6-0 1 -0 1 );中国科学院"九五"特支项目!(KT95T -0 4 )资助

摘　　要：Morphological, physiological and demographic responses to defoliation and grazing encompass the ecological scales of tillers, plants and populations within grassland communities. The ability of individual plants to regrow following defoliation is a multi-facetted process including the meristematic potential and compensatory physiological processes of individual plants, intra- and inter-specific competition of plants, and abiotic variables within the enviroment. The inherent morphological and physiological attributes of individual plants establish the potentialing for regrowth while the intensity of plant competition, resource availability and enviroment conditions constrain the extent to which this regrowth potentiality is realized.Morphological, physiological and demographic responses to defoliation and grazing encompass the ecological scales of tillers, plants and populations within grassland communities. The ability of individual plants to regrow following defoliation is a multi-facetted process including the meristematic potential and compensatory physiological processes of individual plants, intra- and inter-specific competition of plants, and abiotic variables within the enviroment. The inherent morphological and physiological attributes of individual plants establish the potentialing for regrowth while the intensity of plant competition, resource availability and enviroment conditions constrain the extent to which this regrowth potentiality is realized.

关 键 词：草原植物 刈牧 放牧抗性 补偿性生长 

分 类 号：S812[农业科学—草业科学]