23.3. Estimation Methods of Actual Evapotranspiration

Try these first

1. 1.

   What does AET stand for?

   Hint

   Think about the full term related to water loss.

2. 2.

   Name one component of the Soil Water Balance equation.

   Hint

   It's one of the letters in the equation.

3. 3.

   What does AET represent?

   • Potential Evapotranspiration
   • Actual Evapotranspiration
   • Atmospheric Evapotranspiration

   Hint

   It's the actual amount that is lost, not what could be under ideal conditions.

4. 4.

   True or False: The Lysimeter Method directly measures AET through calculations.

   • True
   • False

   Hint

   Think about how measurements are taken.

5. 5.

   Using the Soil Water Balance Method, calculate AET if P = 50mm, R = 10mm, D = 5mm, and ΔS = 20mm.

   Hint

   Use the equation and plug in the numbers.

6. 6.

   Evaluate the appropriateness of using lysimeters in an arid region versus a temperate region for studying evapotranspiration.

   Hint

   Think about water availability and use scenarios.