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.
土壤中对植物有用的矿物质元素必须先溶解在土壤溶液中，然后才能被根吸收。
The mineral elements from the soil that are usable by the plant must be dissolved in the soil solution before they can be taken into the root.
大多数雨林土壤都很贫瘠，因为它们缺乏矿物质，而且高温和强降雨会在到达森林地面后的4年内破坏土壤中的大部分有机物。
Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor.
植物从土壤中吸取矿物质和其他养分。
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.
令他们高兴的是，他们觉得这样可以使田地里的土壤富含矿物质，更加肥沃。
To their delight, they feel that this makes the soil in their fields richer in minerals and so more fertile.
当地农民正在与价格高昂的化肥作斗争，这些年来化肥减少了土壤中的天然矿物质。
The local farmers were struggling with chemical fertilizers which were expensive and had reduced the natural minerals in the soil over the years.
虽然大多数植物不能在这种土壤中生存，但某些植物有能力忍受高浓度的这类矿物质。
Although most plants cannot survive in these soils, certain plants have the ability to tolerate high levels of these minerals.
例如，所谓的蛇形土壤缺乏钙，只有对低水平的这种矿物质耐受的植物才能生存。
So-called serpentine soils, for example, are deficient in calcium, and only plants able to tolerate low levels of this mineral can survive.
植物提取物如矿物质来自于土壤。
在冰川进展过程中，它们剥脱了陆地表面的岩石和土壤，然后在撤退时将矿物质和营养物质释放到海洋中。
As the glaciers advanced, they scraped off the top layer of rock and soil on land and then released minerals and nutrients into the ocean as they retreated.
而且，英国的土壤，一方面酸雨把土壤中的矿物质过滤掉了，另一方面密集种植使得土壤中矿物质含有量达到历史以来最低点，几近枯竭。
Then there’s the state of our soils. Acid rain leaches minerals out of the soil while intensive farming has depleted levels to the lowest in recorded history.
土壤退化也不再是一个问题，可以使用水栽法栽种粮食作物——换句话说，就是使用一种含有矿物质的溶解液。
Soil erosion will not be a problem because the food will be grown hydroponically-in other words, in a solution of minerals dissolved in water.
源源不断的水分供应可以让脆弱的地域（例如沙漠）重新变得肥沃，与此同时，水激活了土壤中的矿物质作用，让土壤中的营养物质释放出来，生命得以生长。
That continuity of moisture is what brittle landscapes like deserts need to become fertile again. Water activates a mineralization process, setting free nutrients in the soil so that life can grow.
对土壤中适当的碱性矿物的风化速度进行评估。
To assess the weathering rates of suitable alkaline minerals in soils.
该小组正在调查碳酸钙矿物中的元素，这些碳酸钙矿物沉积于距今2至170万年的湖内部及周边的淤泥和土壤中。
The team is investigating elements in the mineral calcium carbonate, which were deposited in the mud and soil in and around a lake between two and 1.7 million years ago.
水果和蔬菜中，我们吃得出其对维生素和矿物质从土壤中。
The fruit and vegetables we eat derive their vitamins and minerals from the soil.
矿物的稳定度可由土壤中氧化的程度所决定。
Mineral stability can depend upon the amount by which the soil is oxygenated.
像豌豆或大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于要求土壤肥沃的农作物，比如小麦或玉米。
Crops such as peas or soybeans put important minerals back into the soil, making_it ready for crops such as wheat or corn that need rich and fertile soil.
这位土壤科学家还知道了正是因为细菌土壤才有生命或者肥沃和支持繁茂的植物生长—细菌吃岩石同时生产土壤然后把矿物质传递给植物。
The soil scientist also knew soil is alive or fertile and supports lush plant growth because of bacteria - the bacteria eat rocks to produce soil and then pass the minerals along to plants.
根据腐殖质与矿物质土壤的结合程度、分解作用中所含的有机物类型以及原有的植被，腐殖质可区分为几个类型。
Humus is classified according to how well it is incorporated into the mineral soil, the types of organisms involved in its decomposition, and the vegetation from which it is derived.
在实验室对土壤样品进行矿物质分析，发现岛上的火山土壤至少含有一种称之为腐岩的风化岩石。
Mineral analysis of soil samples in the laboratory, the island's volcanic soil at least contain a so-called saprolite weathered rock.
钙是以交换性盐基在粘土矿物及土壤的有机部分出现的。
It occurs as an exchangeable base in the clay mineral and organic fractions of soils.
这就是为什么植物王国必须依靠从地球母亲或腐烂的同类从土壤中提供矿物质和营养素的缘故。
This is why the plant kingdom must rely upon minerals and nutrients from the dirt as provided by the earth mother and through decay of their own flesh.
植物是所有生命的基础，只有植物能把土壤中的矿物质跟大气中的气体结合，制造出食物。
Plants are the basis of all life, for only they can combine minerals in the ground with gases from the air and produce something worth eating.
利用粉晶X射线衍射分析方法，能定量地测定土壤矿物组成和含量。
The mineral composition and contents in soils can be quantitatively determined by X-ray powder diffraction analysis.
利用粉晶X射线衍射分析方法，能定量地测定土壤矿物组成和含量。
The mineral composition and contents in soils can be quantitatively determined by X-ray powder diffraction analysis.
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