Biome Regeneration Timers

I have a working theory but im unsure of the numbers and would also like to get some others views.
Biomes regenerate after being dug over, this is a 100% fact, but im curious to how fast / what causes it to regenerate.
I have a base, which was created at the start of October but still has 50% of the bases mini map as dirt and not regenerated, and its only a smallish area. Yet i have seen newer bases with a 100% regenerated map.
The only difference between them is activity, my October base is hardly active any more, which leads me to believe, that Biome regeneration is related to activity through the map ? Meaning the more the map tile is loaded, the faster the biome regenerates ?
Thoughts ?
Biomes regenerate after being dug over, this is a 100% fact, but im curious to how fast / what causes it to regenerate.
I have a base, which was created at the start of October but still has 50% of the bases mini map as dirt and not regenerated, and its only a smallish area. Yet i have seen newer bases with a 100% regenerated map.
The only difference between them is activity, my October base is hardly active any more, which leads me to believe, that Biome regeneration is related to activity through the map ? Meaning the more the map tile is loaded, the faster the biome regenerates ?
Thoughts ?