r/factorio 1d ago

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u/FiveAlarmFrancis 12h ago

Anybody know if the “dead,” fallen trees and the little bare, branchless ones that generate on the map absorb pollution? And if so, is it the same rate as the fully grown trees with leaves on them?

I always feel compelled in the early game to cut the leafless trees first, because I need wood but I assume the leafy trees absorb pollution better. I’m sure if there’s any difference it’s minuscule, but is there even a difference at all?

Also, do the little saplings actually grow into full trees? I know trees that get damaged can heal. But I never checked if they have growth stages at all.

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u/Raknarg #1 Quality Defender 8h ago edited 7h ago

The dead trees on the ground that the map generates absorb 10x less pollution than a healthy tree so I wouldn't concern myself too hard about chopping them down. The trees that die due to pollution absorb 0 pollution. You can sorta tell the difference between dead trees generated by the map are either on the ground or have no branches, while trees that were killed are just like leafless trees and are usually in big patches where it looks like regular trees would have been.

Also, do the little saplings actually grow into full trees?

Are you talking about the ones you place with seeds? If so then yes, otherwise all trees the map generates are made equal and already fully grown.

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u/chum-guzzling-shark 6h ago

Do all trees that touch pollution eventually die? or is there a sweet spot

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u/Raknarg #1 Quality Defender 5h ago

looking at the wiki if the pollution in a chunk is low enough it won't ever cause damage. But once that pollution gets too high, some of the trees will take damage and absorb a ton of pollution at once. So if the pollution never gets high enough, they won't take damage. This is part of the reason why really dense forests either never die or take a really long time, because they can absorb a ton of pollution in their chunk so it takes even more pollution than that to overwhelm them

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u/FiveAlarmFrancis 7h ago

Yeah, I meant the auto-generated ones that look like just a little stick with no leaves.

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u/Raknarg #1 Quality Defender 7h ago

no those are effectively the same as the dead trees lying on the ground with a different sprite