rocky / forest squares appearing under farms

[thedarkestcolors]

In a recent game I every now and then find rocky or forest terrain under farms with condensers. Its impossible to build this way. The forest might have spread during the build process (though it should have been replaced when either farm or condenser where finished), but where the rocky terrain comes from I have no idea. The production of the affected squares is ruined (1 min) and its not easy to spot where it happened as farm + condenser make the underlying terrain pretty much invisible.

--> it seems like some terrain is either reverting to what it has been previously or is turned to some random other terrain (and I only notice the ones that mess with the nutrient production of the square)

What is causing this? Is it intended?
I assume its either from fungal pops (I get quite a few of them)  or raising/lowering land (doing that a lot --> bore holes, sea -> land) or does it come from the raising temp. generated by the boreholes?

[Buster's Uncle]

Raised land sometimes goes from rolling to rocky - forests spread, though I can't account for that if there was a farm there.  I did a bug report thread about the rocky turning up under bases in Bug/Patch for scient a few years ago.

[thedarkestcolors]

oh.. searching for that post I found another one about this:
http://alphacentauri2.info/index.php?topic=8661.msg48480#msg48480

and "that" post is:
http://alphacentauri2.info/index.php?topic=3256.0

and now that I know how it happens, I like that it is the way it is

(for the forest: the square didn't have a farm, only a condenser, so I assume forest can spread into condenser only fields, that might actually be a bug, as building a condenser on forest destroys it)

[Buster's Uncle]

Forest can spread into the square a base is on...

[thedarkestcolors]

True.. does it get removed when planting a base into forest? Bases don't seem to care on what terrain they are build on anyways, except for Bonuses (is it like this in other Civ games? I can't remember)

[Buster's Uncle]

Nope - if you build a base on forest, it'll have forest under it.  However, terrain improvements have no effect on a base, other than a sensor - which works as if the base isn't there.

[Mart]

Raised land sometimes goes from rolling to rocky - forests spread, though I can't account for that if there was a farm there.  I did a bug report thread about the rocky turning up under bases in Bug/Patch for scient a few years ago.

Yes, and as I remember, such forest on rocky tile gets twice 50% defensive bonus. Kind of natural bunker.
Under bases, this is not influencing the defensive bonus? It is neutral then.

[Buster's Uncle]

I did not notice about any defensive bonus - there's several savegames in the bug report thread you might could find out from...