24.5.2. Throughfall (Tf)

Try these first

1. 1.

   What is throughfall?

   Hint

   Think about how rain interacts with trees.

2. 2.

   Name a method used to measure throughfall.

   Hint

   What do we place under trees to catch rain?

3. 3.

   What does throughfall refer to?

   • Water that evaporates before reaching the ground.
   • Precipitation that reaches the ground after interception.
   • Water that flows down the trunks of trees.

   Hint

   Consider the definition we discussed in class.

4. 4.

   True or False: Interception loss contributes to soil moisture.

   • True
   • False

   Hint

   Think about what happens to water captured by leaves.

5. 5.

   If a forest receives 120mm of rain, and throughfall is measured at 70mm with stemflow at 30mm, how much interception loss occurs?

   Hint

   Use the formula we learned in class.

6. 6.

   Describe how increased urbanization might affect throughfall and interception loss in a city compared to rural areas.

   Hint

   Think about how landscapes change and the absorbent capacity of the surface.