If the transpiring surface is submerged underwater, how does the potential evapotranspiration compare?

Irrigation, Water Resources Engineering and Hydrology MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

Irrigation, Water Resources Engineering and Hydrology

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Subject
Irrigation, Water Resources Engineering and Hydrologycivil-engineering-mcqs › irrigation-water-resources-engineering-and-hydrology
Published
18 Jan 2019
Last updated
28 May 2026

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Explanation

When the transpiration surface is underwater, the potential evapotranspiration becomes much higher than the actual evapotranspiration because water availability is not a limiting factor, allowing maximum possible evaporation and transpiration rates.

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