A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.
200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。
It also keeps water in the soil and protects helpful organisms like earthworms.
它还能够保持土壤中的水分并保护类似蚯蚓的有用生物。
It also keeps water in the soil and protects helpful organisms like earthworms.
免耕还能保持土壤中的水分，保护像蚯蚓这样的有益生物。
Too much water in the soil at the base of a tree can lead to the growth of fungi.
树木底部土壤中太多水分会导致真菌的滋长。
Deficiency or excess of water in the soil could cause the tremendous decline of the nitrogenase activity.
土壤水分过多或缺乏，都导致固氮活性极大降低。
The deciduous broad-leaf forest always holds more water in the soil than the evergreen needle forest does.
在天目山地区，森林土壤的持水量较非林地土壤（荒草地）为高；
The model is able to adjust the surface water, the water in the soil moisture belt and the aquifer cooperatively.
模型有调蓄地面水源、土壤贮水层、地下含水层的能力。
Land subsidence results from changes in the pressure borne by pore water in the soil and the effective stress borne by soil skeleton.
地面沉降是土层中孔隙水承担的孔隙水压力和土骨架承担的有效应力发生变化的结果。
Another aunt told him that after his death while buried in their family cemetery in the coffin of his mother's side, because their bodies will pollute the water in the soil.
另一个姨妈告诉他，死后不许埋在他们家族墓地中他母亲的棺边，因为他们的尸体会污染泥土中的水。
The effect of the rise of ground water level was simulated by increasing the mass density of pore water in the soil elements between the initial and targeted ground water levels.
通过逐步改变初始和终止地下水位间土单元中孔隙水的密度模拟地下水位上升的效应。
The computer in the farmhouse is checking the temperature, the water and the level of organic material in the soil.
农舍里的电脑正在检查温度、水和土壤中有机物质的含量。
The gradual drying of the soil caused by its diminished ability to absorb water results in the further loss of vegetation, so that a cycle of progressive surface deterioration is established.
土壤吸收水分的能力减弱使土壤逐渐变得干燥，导致植被进一步减少，从而建立了一个渐进的地表退化循环。
Even in the areas that retain a soil cover, the reduction of vegetation typically results in the loss of the soil's ability to absorb substantial quantities of water.
即使在保留土壤覆盖的地区，植被的减少通常也会导致土壤丧失吸收大量水分的能力。
This germ—which is present in soil and water, not feces—is responsible for "swimmers ear", an itchy or painful inflammation of the ear.
这种细菌——存在于泥土和水中，而非粪便——是造成“游泳耳”的主要原因，症状是耳朵发痒疼痛和红肿。
Grazing herds stimulate microbial activity in the soil, helping to capture water and separate carbon.
放牧能刺激土壤中的微生物活动，帮助水分的获取和碳的分离。
The plants in these colonies also need tough resilient stems above the soil, stems that can bent a lot but not break as water constantly crashes into them.
这些殖民地的植物也需要坚硬有弹性的茎高于土壤，茎可以弯曲很多，但不会断裂，因为水不断闯入他们。
The community structure and dynamics of soil water of Pinus sylvestris var. of the mongolica plantation were studied in a growing season.
对樟子松人工林群落结构和土壤水分动态进行研究。
Fly ash uranium sometimes leaches into the soil and water surrounding a coal plant, affecting cropland and, in turn, food.
浮尘中含有的铀有时会溶入煤电厂周围的土壤和水体中，影响农田，进而影响食物。
In addition its water resources are unevenly distributed, much of its soil is poor, and climate change is likely to increase water stress in key parts of the country.
另外，它的水资源分布不均，很多土壤都非常贫瘠，而且，气候的变化增加了这个国家主要地区的水资源的压力。
The notion that something in the air, water or soil can prolong life is 'nonsense, ' he says.
他说，那些认为长寿与空气、水或者土壤所含物质有关的观点简直就是“胡说八道”。
The toxic buildup of lead, mercury, and other heavy metals in the soil and water near coal plants and smelting factories is not usually measured.
火电厂和冶炼工厂附近的土和水中所溶解了来自于铅，汞及其他重金属的毒性物质，这些毒性物质通常很难测量。
Growing organically keeps soil in its natural state and protects the ground as well as our water.
而有机食品的种植不会改变土壤的天然性质，因而可以保护我们的土壤和水源。
Horizontal holes were drilled into the wet soil and liquid nitrogen was pumped in, freezing the water until the tunnel could be dug and cemented.
在湿的土壤中水平的打一些洞，然后泵入液氮对水进行冷冻，直到隧道可以被挖掘和用水泥封住。
In the tightly sealed structure, scientists adjust soil moisture and water tension as well as air temperature and humidity to mimic the conditions that rice would face during droughts.
在高度封闭的建筑里，科学家们调节土壤湿度、水张力以及空气温湿度来模拟水稻在干旱时面临的境况。
Water activates a mineralization process, setting free nutrients in the soil so that life can grow.
水可以激活矿化过程，释放更多的游离的营养到土壤中去，这样就可以保证生命的存活。
Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.
生物炭在澳大利亚使用后，几个月后，农田的碳排放量剧减70%多，与此同时，它还能阻止土壤里的氨氮溶入水体。
Rivers clean themselves quickly when pollution is not too great, so long as the water is moving and in contact with plants, soil and rock.
在污染不太严重时，河水只要是流动的而且能接触植物、土壤、岩石，自身很快就会变清洁。
Rivers clean themselves quickly when pollution is not too great, so long as the water is moving and in contact with plants, soil and rock.
在污染不太严重时，河水只要是流动的而且能接触植物、土壤、岩石，自身很快就会变清洁。
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