The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.(探讨了森林地层在水土保持、养分供应、促进生物呼吸强度和土壤发育等方面的作用。)
Nutrient-rich water is brought to the wetlands during each high tide, making a high rate of food production possible.(在每次涨潮时,富含营养的水被带到湿地,使高粮食产量有可能实现。)
This ecosystem is one of the fascinating paradoxes of the biosphere: how do clear, and thus nutrient-poor, waters support such prolific and productive communities?(这个生态系统是生物圈中令人着迷的悖论之一:清澈而又缺乏营养的水域是如何支撑如此多产的群落的?)
Very few foods are natural sources of this nutrient.(很少有食物是这种营养素的天然来源。)
You can look at the nutrient broken down as a function of the percent daily values.(你可以把分解的营养成分看做及每日建议摄取量的一个功能。)
Much of the research on nutrient deficiencies is based on growing plants hydroponically, that is, in soilless liquid nutrient solutions.(许多关于营养不足的研究是基于水培法种植植物,即在无土液体营养液中。)
Yogurt is nutrient-rich.(冷冻酸奶酪的营养很丰富。)
Chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably.(对无脊椎动物猎物的化学分析显示,不同物种之间的营养成分存在显著差异;即使在种内,营养成分也可能有很大的差异。)
Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, productivity, and nutrient uptake.(长期影响主要是由树种组成的变化以及随之而来的森林结构、生产力和养分吸收的变化所导致的。)