Due to no direct irrigation cost in Self-flowing irrigation Zone along Yellow River, the efficiency of water use is also lowest.

沿黄自流灌区由于没有直接灌溉成本，其用水效率也是最低的。

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Farm irrigation from these free-flowing bodies is the biggest single human use of freshwater.

自由流通水体的农场灌溉是人们最大的淡水单一使用。

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7after six years of drought, measuring sticks are useless at the Ziglab Dam in Jordan, built to catch water flowing west into the Jordan River for irrigation.

6年的干旱后，约旦Ziglab大坝的水位量尺显然失去了意义，该水库的建成是为了截留向西流入约旦河的水以用于灌溉。

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Babbling waterways, branching from the nearby rivers, feed the still-flowing irrigation system that the Incas designed, their handiwork admired to this day.

BBC: Walking in Inca footsteps in Peru's Sacred Valley

With rivers flowing weakly, the tide pushed sea-water in, both cutting fish catches and preventing irrigation.

ECONOMIST: Guyana