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。
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 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。
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。
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。
The theoretical and practical stocking rates were predicted according to climate change cycles. The practical stocking rate would reach the largest theoretical stocking rate in 2024, if the present q…
根据气候变化周期，对理论载畜量与现实载畜量进行了周期预测，若维持目前品质和生产结构方式，预测到2024 年现实载畜量将达到最大理论载畜量。
The results showed that there were significant decreases in length increment, special growth rate and daily weight gain of the juveniles with the increase in stocking density increase.
试验结果表明，各密度组地图鱼幼鱼的生长速度存在明显差异，增重率、增长率、特定生长率和平均日增重都随养殖密度的增加而降低；
Growth and feed utilization rate of Siganus canaliculatus under different stocking densities and with various feeding levels were introduced.
探索了不同放养密度和投饲量水平下沟篮子鱼的生长情况和饲料利用率。
In the case of the similar stocking density (mantissa), the large-sized fish played a distinct role in increasing capital gains rate of pond productivity.
在放养密度(尾数)近似的情况下，大规格鱼种对增加池塘生产力资金增益率有显著作用。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
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