primary productivity

基本解释

How much carbon land plants store during photosynthesis, a measure known as net primary productivity, changes from season to season.
净初级生产力被定义为植物在光和作用可以储存的碳的总量，这个值会伴随季节而变化。
www.chinadaily.com.cn
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.
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。
This study focused on the effects of annual net primary productivity of forest ecosystem and habitat complexity of Huanglong Nature Reserve on the species diversity of small mammals.
本研究主要探讨黄龙自然保护区森林生态系统年净初级生产力水平和栖息地复杂程度对小型兽类物种多样性的影响。

His primary task is to help farmers improve the productivity and quality of their farms and to reduce environmental harm.
NEWYORKER: Testing, Testing
Over the period of the next three decades following the introduction of Package A, it is reported that the illiteracy rate was halved from approximately 21 per cent in 1970, to approximately 11 per cent in 2000, and that increased productivity of newly-literate people in various primary and secondary industries was observed.
UNESCO: AKRAB! (Literacy Creates Power)
Their primary mission: to convince hiring managers that they are turbocharged engines of productivity.
FORBES: Keep Upbeat On The Job Search When You're Down In The Dumps

初级生产力
The primary productivity at the surveyed stations is 0.0502.453 mg/（μm3·h）. The primary productivity of the Chukchi shelf is higher than that of the Chukchi Plateau,the Canada Basin,the Beaufout Sea and the Mendeleev Ride.
观测站初级生产力（C）为0.0502.453 mg/（m3.h）,陆架区平均生产力高于海台区、海盆区、波弗特海以及海嵴区。
第一性生产力