Brazilian cattle-ranching, which occupies 209m hectares, is staggeringly unproductive, with an average stocking rate of less than a head of cattle per hectare.
巴西养牛业占据了2.09亿公顷的土地，却相当低效，平均每公顷上放养还不到一头。
The selectivity index for height layer varies with seasons and stocking rate.
各高度草层的选择性随季节推移和放牧率不同而发生变化。
The selectivity index of different plant species changes with grazing The selectivity index of different plant species changes with grazing seasons and stocking rate.
山羊对各种植物的选择性指数随放牧季节和放牧率的不同而发生变化。
For most systems, compensatory growth could be simulated with linear or quadratic models when the percent biomass eaten by sheep was used as an index for estimating the relative stocking rate.
植物群落的补偿性生长与载畜率的关系可以用开口向下的二次函数或者斜率为负的线性函数模拟。
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.
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。
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.
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。
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