气温和蒸气压不足是影响蒸腾作用的关键因素。
Air temperature and vapor pressure deficit were the key factors affecting transpiration.
对水源管理者来说，只有在水通过物理蒸发变成空气的一部分，或者被植物吸收并且转变为水蒸气形式(蒸腾作用)的时候，才被消耗了。
For a water manager, the only time water is consumed is when it evaporates into the air or is soaked up by plants and then turned into water vapor (transpiration).
剩下的10%主要来自于植物的蒸腾作用。
Most of the remaining 10% is released by plants through transpiration.
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