摘要
本文就20世纪50年代以来放牧生态系统中动一植物的生态位平衡关系进行了引证讨论.阐明了放牧的自然性及放牧与饲草产量和植被组成的互作关系.指出:当家畜的放牧时间和载畜率类似于草原生态系统进展下的模式时,草地可保持它的生产力和植被组成.
The equilibrium relationships of animal—plant in grazing ecosystems have been instanced and discussed since 1950's. The interactive relationships of grazing nature, forage biomass and botanical composition were reviewed. It is concluded that range ecosystems may sustain their productivity and composition when grazing time and stocking rate resemble the grazing pattern representing the ecosystem progressing.
出处
《中国草地》
CSCD
1993年第6期64-69,共6页
Grassland of China
关键词
放牧
草地生态
草地植被
grazing
grassland management
grassland ecology
