19.1. Evapotranspiration – Definition and Concept

Try these first

1. 1.

   Define evapotranspiration in one sentence.

   Hint

   Think about what processes contribute to ET.

2. 2.

   What does evaporation involve?

   Hint

   Focus on where the loss of water happens.

3. 3.

   What are the two main components of evapotranspiration?

   • Rain and Soil
   • Evaporation and Transpiration
   • Groundwater and Surface Water

   Hint

   Remember the definition.

4. 4.

   True or False: Evapotranspiration only occurs in plants.

   • True
   • False

   Hint

   Think about where evaporation happens.

5. 5.

   Given a soil moisture level of 15%, calculate the potential and actual evapotranspiration in arid conditions where PET is estimated at 5 mm/day.

   Hint

   Look at how soil moisture affects evaporation rates.

6. 6.

   Describe how changes in temperature and humidity could alter ET levels in an agricultural setting.

   Hint

   Consider how weather changes impact water loss.