23.3.2. Lysimeter Method

Try these first

1. 1.

   What is a lysimeter?

   Hint

   Think of it as measuring water loss in plants and soil.

2. 2.

   What are the two types of lysimeters?

   Hint

   One type measures weight, the other measures water level.

3. 3.

   What is the primary function of a lysimeter?

   • To measure rainfall
   • To calculate evapotranspiration
   • To assess soil structure

   Hint

   Think about what process lysimeters are monitoring.

4. 4.

   Lysimeters are effective tools for measuring ET. True or False?

   • True
   • False

   Hint

   Remember their function in the hydrological cycle.

5. 5.

   Given a scenario where a weighing lysimeter recorded an initial weight of 100 kg. Over the growing season, the weight decreased to 80 kg. Calculate the total evapotranspiration during this period.

   Hint

   Focus on the change in weight to determine water loss.

6. 6.

   Design a comparative study to evaluate the output of weighing vs. non-weighing lysimeters. Detail your method and how you would statistically analyze the results.

   Hint

   Consider how to control other variables affecting evapotranspiration.