43.2.1. Definition

Try these first

1. 1.

   What is consumptive use?

   Hint

   Think about how water is utilized by plants.

2. 2.

   What are the components of evapotranspiration?

   Hint

   Both processes involve water loss.

3. 3.

   What does consumptive use refer to?

   • Water released from soil
   • Water absorbed by plants
   • Water lost through evapotranspiration

   Hint

   Focus on how water is used and lost.

4. 4.

   True or False: Interception losses refer to water lost from the soil.

   • True
   • False

   Hint

   Consider how water interacts with plants.

5. 5.

   If a region has an average effective rainfall of 50 mm and the total water requirement for crops is 200 mm, calculate the irrigation requirement.

   Hint

   Remember the irrigation requirement formula!

6. 6.

   A farmer wants to optimize their irrigation based on consumptive use. They find that their crop's average ET is 5 mm/day. If the growing season is 30 days, what is the total water needed?

   Hint

   Multiplication will give you the total water needed across the season.