27.4.3. Lysimeters

Try these first

1. 1.

   What is a lysimeter?

   Hint

   Think about tools for measuring soil water dynamics.

2. 2.

   Explain one application of lysimeters.

   Hint

   Consider how farmers can benefit from knowing water needs.

3. 3.

   What does a lysimeter measure?

   • Temperature changes
   • Infiltration and percolation
   • Air pressure

   Hint

   Think about the purpose of a lysimeter.

4. 4.

   True or False: A weighing lysimeter can measure evaporation.

   • True
   • False

   Hint

   Consider what extra function a weighing lysimeter has.

5. 5.

   Discuss how you would evaluate the efficiency of a kiloliter of irrigation water using a lysimeter. Outline the steps and expected outcomes.

   Hint

   Consider control measures while collecting data.

6. 6.

   Analyze the impact of soil texture on the performance of a lysimeter in measuring infiltration rates.

   Hint

   Think about how different soils respond to water.