初级生产量（primary production)是指单位时间和单位面积上的绿色植物通过光合作用所制造的有机物质或所固定的能量。
连续放牧群落净初级生产量高于禁牧群落，为超补偿生长。
The primary production under CG is higher than the FG and appeared as over-compensatory growth.
文中讨论了水化学特点、生物生产力的限制因子以及浮游植物量和初级生产量的分布和变化。
Hydrochemistry characteristics, the limited factors of biological productivity and the distribution and fluctuations of biomass and production of phytoplankton are discussed.
降雨量是森林植物生产量的关键决定因子，而在干旱地区，初级生产量随降雨量的增加大致是一个线性增长。
Precipitation is a key determinant of plant productivity in forest, whilst in arid regions there is an approximately liner increase in primary productivity with increasing precipitation.
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