28.3.1.A.iii. Tension Infiltrometer

Try these first

1. 1.

   What is the main purpose of a tension infiltrometer?

   Hint

   Think about its application in agriculture and hydrology.

2. 2.

   What does negative pressure head refer to?

   Hint

   Consider how it relates to unsaturated conditions.

3. 3.

   What is the primary function of a tension infiltrometer?

   • To measure soil composition
   • To measure unsaturated infiltration
   • To assess plant growth

   Hint

   Think about what it is designed for.

4. 4.

   True or False: Tension infiltrometers do not measure saturated soils.

   • True
   • False

   Hint

   Consider the use case of the device.

5. 5.

   Calculate the change in infiltration rate when using varying levels of negative pressure in a tension infiltrometer. Assume you have three different pressures: -10, -20, and -30 cm.

   Hint

   Focus on the relationship between pressure and infiltration rates.

6. 6.

   Discuss a scenario where a tension infiltrometer could provide critical data for managing a drought-prone agricultural area.

   Hint

   Consider the context of water availability.