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。

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Some salt substitutes or light salts contain a mixture of table salt and other compounds.

一些增咸剂和低盐产品是食盐和其它化合物的混合物。

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For example, cheap forms of irrigation have depleted the water table in many farm areas of India, while at the same time adding near-toxic levels of salts from fertilizers to the soil.

例如成本低廉的灌溉方式已经使印度很多地区的地下水干涸，化肥中高剂量的盐分残留在土壤内。

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This huge cultural heritage site, became increasingly threatened with decay by exposure to harsh climatic conditions, floods from the Indus River, deterioration due to salts rising from the high water-table, and water-logging.

UNESCO: Safeguarding Moenjodaro