Environmentalists say that diverting water from the river will lower the water table and dry out wells.
环保主义者称引流河水将导致地下水位下降和水井干枯。
Below the water table and rock is oil.
地下水和岩石下面是石油。
Excess water from irrigation sinks down into the water table.
灌溉产生的多余水分渗入地下水。
Above the water table is the vadose zone, through which rainwater percolates.
地下水位的上方是包气带，雨水从中渗透。
The water table is not flat but usually follows the contours of the topography.
地下水位是不平坦的，而是通常随地势而变化。
Typically, though, the water table may be tens or hundreds of meters below the surface.
不过一般来讲，地下水位可能会位于地表以下数十或数百米。
If no drainage system exists, the water table rises, bringing dissolved salts to the surface.
如果没有排水系统，地下水位就会上升，把溶解的盐带到地表。
The water table is the underground boundary below which all the cracks and pores are filled with water.
地下水位是地层岩石裂缝和孔隙充满水的边界。
In some cases, the water table reaches Earth's surface, where it is expressed as rivers, lakes and marshes.
在某些情况下，地下水位到达地球表面，在那里以河流、湖泊和沼泽的形式表现出来。
Water in the vadose zone drains down to the water table, leaving behind a thin coating of water on mineral grains.
包气带中的水会沉降到地下水位，只在矿物颗粒表面留下一层薄薄的水膜。
In places, the water table is declining at a rate of a meter a year, necessitating the periodic deepening of wells and the use of ever-more-powerful pumps.
在一些地方，水位正以每年一米的速度下降，需要定期加深井并使用更强大的水泵。
In particularly wet years, short stretches of an otherwise dry stream-bed may have flowing water because the water table rises to intersect the land surface.
在气候特别湿润的年月里，平常干涸的河床下游可能会有水流动，因为地下水在那里位抬升到了地表以上。
Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water.
由于地下水位不是平面的，而是随着地形起伏的，所以地下水和地表水一样受到重力的影响。
In the northern peninsula the elevation is sufficiently low that the ancient Maya were able to reach the water table at deep sinkholes called cenotes, or at deep caves.
在半岛北部，海拔足够低，因此古玛雅人能够经由被称为竖井的深层排水口或深洞探及地下水位。
If the water table intersect the land surface, groundwater will flow out onto the surface at springs, whether to be collected there or to subsequently flow farther along a drainage.
如果地下水位与地表相交，地下水将在泉水处流出地表，聚集于此或是随后沿着排水系统进一步流动。
The water table is falling. Temperatures rise year by year.
地下水位一直在下降，温度却年年上升。
In order to provide water, a well must be dug down to the water table.
为了得到水，挖掘井时，必须向下一直到挖到地下水位。
Recently, “the water table has dropped down so much that my pump was sucking air.”
近来，“水位下降的很快以致于我的水泵根本抽不到水了”。
The water table was probably just below the surface making tunnels highly unlikely.
地下水位可能仅在地面之下，这使得隧道变得十分不可行。
When the water table is at normal height, the fire dies down when it hits the earth.
当地下水位处于正常高度时，火焰在触及地面时很快就会熄灭。
Fracking can damage the water table, disrupt communities and even cause earthquakes.
用水力压裂技术采气的过程会破坏地下水位，影响周边环境，甚至引起地震。
The water table is falling fast in densely populated and poor regions of China, Mexico and India.
在中国、墨西哥和印度人口稠密的贫穷地区，地下水位在急速下降。
Rights provide quotas, but Israeli farmers do not want to see them traded-and the water table drops.
产权提供配额，但是以色列的农民不想看到水被交易——更不想看到地下水位下降。
Landowners, whose fields will benefit from the resulting rise in the water table, donate some of their labor.
土地的所有者则会捐赠一些他们的劳力，因为这一工程带来的地下水位上升对他们的农田有益。
In wet periods, when the water table was high, animals could easily drink from seepage ponds near the surface.
在地下水位较高的雨季，动物们可以轻易喝到地面渗流水塘的水。
This decrease in the water table is a major contributor to land subsidence - New Orleans, like Venice, is sinking.
地下水位的降低则是地表陷没的元凶，而新奥尔良，和威尼斯城一样，正在下陷。
This decrease in the water table is a major contributor to land subsidence - New Orleans, like Venice, is sinking.
地下水位的降低则是地表陷没的元凶，而新奥尔良，和威尼斯城一样，正在下陷。
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