23.1. Concept of Actual Evapotranspiration

Try these first

1. 1.

   Define Actual Evapotranspiration (AET).

   Hint

   Think of it as what happens in real conditions.

2. 2.

   What does PET stand for?

   Hint

   It refers to the maximum under ideal conditions.

3. 3.

   What is the main distinction between AET and PET?

   • AET is maximum
   • PET is actual
   • AET is actual
   • PET is maximum
   • AET is irrelevant

   Hint

   Remember the definitions of both terms.

4. 4.

   True or False: AET can never exceed PET.

   • True
   • False

   Hint

   Consider what each term represents.

5. 5.

   Consider an area during a drought where the soil moisture content is at 20% of field capacity. Discuss how this affects plant transpiration.

   Hint

   Relate soil moisture levels to transpiration pressure.

6. 6.

   Identify a situation where AET approaches PET and explain the environmental factors contributing to this.

   Hint

   Consider both available resources when discussing this similarity.