The percentages of phytoplankton, macrophyte and periphyton in the total net primary production were 93%, 6% and 1% respectively.
浮游植物、大型水生植物和附生藻类在净初级生产力中的比例分别为93%、6%和1%。
The grassland net primary production (NPP) is an important research issue in the global climate change and terrestrial ecosystem.
草地净第一性生产力(NPP)是全球变化与陆地生态系统研究的核心内容之一。
On the basis of the principles of plant physiology, agro-meteorology and soil environment, net primary production of rice and wheat crops was modeled.
以植物生理学、农业气象学和土壤环境学的基本原理为基础 ，建立了稻麦作物净初级生产力模型 。
Biomass increment, net primary production, and their allocation of the lower subtropical evergreen broad-leaved forest in Heishiding natural reserve were studied.
本文研究了黑石顶自然保护区南亚热带常绿阔叶林的生物量增量及其分配规律，净第一性生产量及其分配规律。
Mankind appropriates about a quarter of what is known as the net primary production of the Earth (this is the plant tissue created by photosynthesis)—a lot, but hardly near the point of exhaustion.
人类仅利用了地球大约四分之一净初级生产资源（这是由植物组织光合作用所产生的）。 虽然这已经很多，但是还没有达到用尽的地步。
Plant net primary production (NPP) of agriculture vegetation represents the capacity of sequestrating atmospheric CO2 in agro-ecosystem, and plays an important role in terrestrial carbon cycling.
农业植被净初级生产力代表了农田生态系统固定大气co_2的能力，是陆地生态系统碳循环的重要组成部分。
Plant net primary production (NPP) of agriculture vegetation represents the capacity of sequestrating atmospheric CO2 in agro-ecosystem, and plays an important role in terrestrial carbon cycling.
农业植被净初级生产力代表了农田生态系统固定大气co_2的能力，是陆地生态系统碳循环的重要组成部分。
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