What is the pressure inside that tree?

In summary, the conversation discusses the interest in biomechanics and tree specialization, specifically in regards to predicting internal pressure in big trees. The person asking the question is aware of the factors that contribute to this pressure but is unsure of how to estimate it. They mention the possibility of using trigonometry to measure the height of a tree from a distance and reference a scientific study on hydrostatic measurements in plant physiology.
  • #1
Nat Collett
1
0
Hi,
Having a background of horticulture training (NZTCH) and tree specialisation (NSW Arbor Techniques & Tree Surgery), I'm very interested in biomechanics so enjoy books written by authors like Prof. Dr. Claus Mattheck
http://www.mattheck.de/english/english2.htm
My question is:
Given a height in metres, and a circumference in metres, is the internal pressure predictable in a big tree?
Well aware of the combination of osmotic pressure, capillary action and transpiration suction that provide this pressure; but how to guesstimate? We can assess the height of a tree without climbing it (roughly accurate).
Has anyone ever come across any scientific study on internal tree pressures?
 
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  • #2
I don't know anything about the pressure, but assuming there is line of sight to the top of the tree from some distance away, getting the height is simple trig.
 
  • #3

1. What is the average pressure inside a tree?

The average pressure inside a tree can vary depending on factors such as species, age, and environmental conditions. However, it is estimated to be around 0.5 to 2 megapascals (MPa).

2. How does the pressure inside a tree affect its growth?

The pressure inside a tree, also known as sap pressure, is a key factor in the growth and development of the tree. It helps to transport water and nutrients from the roots to the leaves, where they are used for photosynthesis. Without this pressure, the tree would not be able to grow and thrive.

3. Can the pressure inside a tree change?

Yes, the pressure inside a tree can change throughout the day and even throughout the year. It is affected by factors such as transpiration rates, temperature, and humidity. For example, during the day, when the sun is shining and the tree is actively photosynthesizing, the pressure will increase. At night, when there is no sunlight and the tree is not actively using water, the pressure will decrease.

4. Is there a way to measure the pressure inside a tree?

Yes, there are several methods for measuring the pressure inside a tree, including using a pressure chamber, a pressure bomb, or a pressure probe. These instruments allow scientists to directly measure the pressure in the xylem, the tissue responsible for transporting water and nutrients throughout the tree.

5. What happens if the pressure inside a tree gets too high?

If the pressure inside a tree gets too high, it can result in a phenomenon called cavitation, where air bubbles form and block the flow of water and nutrients. This can be harmful to the tree and can even lead to its death. However, trees have adaptations, such as small pores in their xylem, to prevent cavitation and maintain a healthy level of pressure.

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