The trees reduce water runoff and soil erosion.

这种树可以减少水分流失和土壤侵蚀。

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They had reduced harmful water runoff to safeguard the health of the reef.

他们减少了有害水径流来维护珊瑚的健康状况。

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Farmers say they need less rainwater if they use fertilizer trees. The trees reduce water runoff and soil erosion.

农民说，如果使用肥料树，他们只需要很少的雨水。这种树可以减少水分流失和土壤侵蚀。

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Collecting it also reduces runoff of storm water to the nearby Potomac River.

VOA: special.2011.07.08

That's 100 times the normal count found in water runoff from storms, the company said.

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The plants insulate the building and perform other functions, such as improving water runoff.

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The Trust has advocated effectively for a Green Streets approach to managing storm water runoff.

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