Summary: Ecohydrology
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1 Introduction
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Which process is affecting the carbon balance, energy balance and water balance?
Evaporation mediated by plants, influencing carbon, energy water and nutrient cycles. -
2 Evaporation
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How is dry canopy evaporation called?
Transpiration -
How is wet canopy evaporation called?
Interception -
What is interception loss
It is the portion of the precipitation that is returned to the atmosphere through evaporation from plant surfaces or is absorbed by the plant. -
What is open-water evaporation?
The transport ofvapour as a function of the humiditygradient and the wind speed across the surface measured in a pan. -
What are the four things the stomata responds to?
1. Radiation
2. Water vapour deficit
3. Temperature
4. Plant water status -
What are the differences with the Penman-Monteith formula and the Penman formula.
The Penman-Monteith formula includes surface resistance (rs) and the empirical wind function is replaced by aerodynamic resistance (ra). -
What are four types of interception?
1. Rainfall interception
2. Fog interception
3. Snow interception
4. Interception from urban areas -
What vegetation characteristics influence interception? (3 things)
1. The amount of leaves
2. Shape and size of leaves
3. The height -
What rainfall characteristics influence interception? (2 things)
1. Frequency
2. Intensity
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