How does drip irrigation save water?

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试卷: LEED GA模拟题B[查看]
How does drip irrigation save water?
A: By increasing irrigation efficiency
B: By using only non-potable water
C: By reducing the heat island effect
D: By reducing the microclimate factor

参考答案: A

本题解释:
Water efficient landscaping helps reduce the need from potable water from local and regional aquifers. Drip irrigation is a highly effective way to deliver water to a plant\'s roots because the water isn\'t lost to the wind, evaporation, or runoff.

Drip irrigation has a 90% irrigation efficiency compared to 65% for conventional sprinkler systems.