1．1草食动物与草地之间的关系 植物一食草动物系统也可称为放牧系统（grazing system），它有两个基本类型，即相互作用的（interactive）和非相互作用的（non-interactive）【3】。
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interactive grazing system 相互作用的放牧系统
Beef Cattle Grazing System 肉牛放牧系统
semi-intensive grazing system [畜牧] 半集约式放牧制
leader and follower grazing system 先后放牧系统
intensive grazing system 集约式放牧 ; 集约放牧制度
Rotational Grazing and Grazing System 轮牧放牧制度
sheep grazing system 绵羊放牧系统
grassland grazing system 草地放牧系统
There weren’t significant differences on shrub height, coverage and density between two grazing systems. Rotational grazing system enhanced height, coverage and density of community and Agriophyllum squarrosum in shifting sandy land.
轮牧与自由放牧两种放牧制度对灌木层种群盖度、高度和密度的影响不显著;轮牧提高流动沙地群落及沙蓬的高度、盖度、密度;在半固定沙地轮牧与自由放牧两种放牧制度对白草的高度、盖度和密度影响不显著,轮牧提高达乌里胡枝子密度和盖度,对高度无影响。
参考来源 - 科尔沁草地特征及科尔沁牛牧食行为对放牧制度的响应Not only can the relationship between grazing intensity and regrowth of vegetation be discovered, but also the appropriate grazing rate can be determined in the management of grazing system.
该研究不仅能够在理论上揭示放牧强度与植被再生的关系，而且在草地放牧系统的生产管理中，也能够依据植被持续再生与最佳放牧率的系统平衡稳定性条件，确定适宜的放牧率。
参考来源 - 羊草草地山羊放牧对牧草再生影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A rational grazing system(GS)is the prerequisite for utilizing grassland properly and giving full play to the potential of grassland resources.
合理的放牧制度是对草地进行合理利用，充分发挥草地资源潜力的前提。
Selective grazing of the native cattle and sheep in Inner Mongolia under the continuous grazing system during May and December 19% and 1997 was studied.
1997年间，作者对自由放牧条件下放牧于沙地草地的蒙古牛和蒙古羊的选择性采食进行了观察研究。
The diurnal ruminating difference between different seasons was the result of the effect, which was caused by the climatic factor, grass condition, and the grazing system.
日反刍行为的季节间差异是由气候、草地状况和放牧制度共同影响的结果。
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