20.3.1.b. Field Experimental Plots

Try these first

1. 1.

   What does ET stand for?

   Hint

   It's the combination of evaporation and transpiration.

2. 2.

   Why is soil moisture important in field experimental plots?

   Hint

   Think of it as tracking available water.

3. 3.

   What is the main purpose of field experimental plots?

   • To provide data for models
   • To grow crops without irrigation
   • To test soil types

   Hint

   Think about why scientists would create these plots.

4. 4.

   True or False: Evapotranspiration includes only evaporation from soil.

   • True
   • False

   Hint

   Consider what transpiration adds to the definition.

5. 5.

   In a field experimental plot, you applied 300 mm of water. Over four weeks, 50 mm evaporated, 30 mm was absorbed by plants, and 20 mm ran off. What is the estimated ET?

   Hint

   Use the water balance to find remaining water.

6. 6.

   Discuss how changes in climate might affect measurements and results from field experimental plots.

   Hint

   Consider drought or increased rainfall impacts.