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Q&A

Tall trees : atmospheric pressure

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In my previous post, I asked about how tall trees could grow in my world. To be honest, I really need those trees to be huge for my storie, because a big part of the plot will be linked to those big forests, so every characteristic of my world are settled for those trees to grow as big as possible (between 250 and 300 meters would be perfect).

But I want this world to be believable. A lot of factors influence the growth of a tree, and I have deduced (I am surely wrong) from answers to one of my post In what ways a higher level of oxygen (23 to 25%) and higher pressure (1,7 time the earth air density) would affect winds and ocean currents? that pressure seems to be a factor to think about (for example higher pressure slows down winds, which affect winds/ocean currents and precipitations, which could, I don't know, allow trees to grow without being bothered/destroyed by a hurricane for example). I decided to think about those trees step by step, so right now, it seems to me that definitely settling atmosphere is the first step.

Know that I have a map of my world with plate tectonic, ocean and winds currents and moutain range.

Concerning the planet characteristics : what is already settled is gravity (0,8g). But from some research, it seems that gravity influences pressure, because it keeps everything near the planet surface. So I don't know if I can play a lot with pressure.

My question is : considering what is influenced by atmospheric pressure (ocean and winds currents, climates - which both influence trees growth - ... etc), how much pressure (kg/m3 or atm) would I need to maximize my trees height ?

Thanks !

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This post was sourced from https://worldbuilding.stackexchange.com/q/160545. It is licensed under CC BY-SA 4.0.

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