19.6. Measurement Techniques for ET

Try these first

1. 1.

   What is the purpose of a lysimeter?

   Hint

   Think about direct measurement.

2. 2.

   Name a tool that measures evaporation rates.

   Hint

   It starts with an 'A'.

3. 3.

   What is the primary function of a lysimeter?

   • Measuring wind speed
   • Measuring ground temperature
   • Measuring ET

   Hint

   Think of direct measurement tools for ET.

4. 4.

   True or False: An atmometer is a direct measurement device.

   • True
   • False

   Hint

   Consider the type of measurement being performed.

5. 5.

   Analyze a scenario where a researcher needs accurate ET data for crops in various climates. Which measurement techniques would you recommend, and why?

   Hint

   Think about both direct and indirect methods within different ecological settings.

6. 6.

   A farmer notices fluctuating ET readings on his atmometer. What could be potential reasons, and how could he assess the reliability of his readings?

   Hint

   Reflect on the external environmental factors impacting evaporation.