... 生产力假说 productivity hypothesis 生态系生产力 productivity of ecosystem 断面图 profile diagram ...
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productivity of resource ecosystem 资源生态系统的生产作用
productivity of fishing ecosystem 渔业生产力
productivity of fo-rest ecosystem 森林生态系统生产量
The function of improving productivity of ecosystem.
提高生态系统生产力的作用;
Nitrogen and phosphorus are the necessary mineral nutrition to trees. They determine the growth of individual, the development of community and the productivity of ecosystem in the nature.
氮、磷是树木必需的矿质营养,在自然界中它们影响着树木个体的生长、群落的发育及整个生态系统的生产力。
The productivity or fertility of such an ecosystem increases as the amount of organic material that can be broken down into nutrients increases.
随着分解为营养物的有机物质总量的增加,这种生态系统的生产力或肥沃度也增加。
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