19. Evapotranspiration

Try these first

1. 1.

   Define evapotranspiration.

   Hint

   Think about the processes involved in losing water.

2. 2.

   What does PE stand for in the context of ET?

   Hint

   It indicates the maximum level of ET.

3. 3.

   What is evapotranspiration?

   • A groundwater measurement
   • Water loss through evaporation and transpiration
   • Only water loss from plants

   Hint

   Think about what ET measures.

4. 4.

   True or False: Actual Evapotranspiration can never be greater than Potential Evapotranspiration.

   • True
   • False

   Hint

   Think about environmental constraints.

5. 5.

   Analyze the effect of increased average temperatures on PET and AET in arid regions. Provide two specific examples of how this might change agricultural practices.

   Hint

   Consider the relationship between temperature, evaporation, and crop choice.

6. 6.

   Devise a study to compare ET measurements using the Hargreaves method and lysimeters. What key factors would need to be controlled?

   Hint

   Think about the importance of consistent conditions for accurate results.