植物从土壤中吸取矿物质和其他养分。
一种非本地的植物通过占用土壤中的养分来扼杀本地植物。
A non-native plant chokes out native plants by hogging the nutrients in the soil.
养分和矿物质容易从沙质土壤中流失，因此沙质土壤往往较为贫瘠。
Sandy soils are prone to the leaching of nutrients and minerals and so tend to be nutritionally poor.
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。
The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.
由于养分的重要性和贫乏性，营养循环是我们在这门课中会讲到的最重要的生态系统过程之一。
Because of the importance of nutrients and their scarcity, nutrient recycling is one of the most significant eco-system processes that we'll cover in this course.
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。
Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, productivity, and nutrient uptake.
这些条件有助于进化出用于支撑枝干的结构、运输水分和养分到植物各部分的导管以及储存水分的结构。
These conditions favored the evolution of the structures that support the body, vessels that transport water and nutrients to all parts of plant, and structures that conserve water.
一旦腐殖质层消失，养分就无法从土壤中回收和过滤，致使土壤由肥沃变为贫瘠，只适于热带草原植被的生长。
Once the humus layer disappears, nutrients cannot be recycled and leach from the soil, converting soil from fertile to infertile and making it suitable only for savanna vegetation.
在现代农业中，土壤的矿物损耗是一个主要的问题，因为收割农作物会中断养分的循环，使其无法重新回到土壤中。
In modern agriculture, mineral depletion of soils is a major concern, since harvesting crops interrupts the recycling of nutrients back to the soil.
人们开始越来越多地使用脱水后的动物粪便作为替代燃料，这同样会损害土壤，因为这些珍贵的土壤改良剂和植物养分的来源将无法再回归到土壤之中。
The increasing use of dried animal waste as a substitute fuel has also hurt the soil because this valuable soil conditioner and source of plant nutrients is no longer being returned to the land.
作为一个孩子，她渴望吸取知识的养分。
土壤这样贫瘠，植物能获得足够的养分吗？
他试探着提出了植物从空气中吸取它们的部分养分的观点。
He ventured that plants draw part of their nourishment from the air.
此外，还有人担心打印食品的健康价值：我们真的有可能从以食品为基础成分的“墨水”或类似的东西中得到需要的养分吗？
Also, here are worries about the healthy value of printed food: is it really possible to get what we need from food-based "inks" or something like that?
再一次这些养分可以通过泥泵回收利用。
不同的作物轮耕，以防止土壤养分枯竭。
Rotate agricultural crops to prevent the sapping of nutrients.
动物需要3到8磅的养分来产出1磅肉。
Animals require between 3 and 8 pounds of nutrient to make 1 pound of meat.
小草将吸收到生长所需的养分、糖和能量。
The grass absorbs the nutrients, sugar and energy it needs to be able to grow.
只要提供养分，树木就能持续生长和翻身。
Just provide it the nutrients it needs and the tree will continue to grow and flourish.
碎石子可以用来补充土壤，增加土壤养分。
Gravel dust (see our global ideas bank's "Saving the Planet With Gravel dust") could be used to supplement the soil and increase soil nutrients even further.
传统食物水分含量较高，稀释了其养分含量。
The higher water content in conventional foods dilutes its nutrient contents.
上面的盆子装满土并在底部安装向下渗透养分的管子。
The first basin would be filled with soil and a drain would be located at the bottom to allow leach of nutrients.
食物和所含的养分并不是单独消耗掉，而且互相吸收。
Food and the nutrients they contain aren't consumed singly, but with each other.
浮游植物的成长取决于二氧化碳，阳光以及养分的多寡。
Phytoplankton growth depends on the availability of carbon dioxide, sunlight, and nutrients.
洪说，部分原因是压力有助于养分注入没有血管的软骨。
Hung says this is partly because the pressure helps to pump nutrients into cartilage, which has no blood vessels.
它们在养分水平偏低的偏远海洋中数量稀少(呈深蓝色)。
They are scarce in remote oceans (dark blue), where nutrient levels are low.
暴雨已将养分冲入湖中，把一向清澈的湖水变成了翠绿色。
Heavy rains have washed nutrients into the lake, turning the usually clearer waters emerald green.
比如，树根的周围经常被某种真菌环绕着，它们从树种汲取养分。
For example, tree roots are often surrounded by fungal growths that take nutrients from the trees.
与此相反，因为养分的限制，在偏远的洋流中浮游植物非常罕见。
By contrast, phytoplankton are scarce in remote ocean gyres due to nutrient limitations.
与此相反，因为养分的限制，在偏远的洋流中浮游植物非常罕见。
By contrast, phytoplankton are scarce in remote ocean gyres due to nutrient limitations.
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