The water levels don't change seasonally..So I'm guessing it's a very high rainfall area? In which case erosion and nutrient leaching are bound to be issues for the agentic farmers. I wonder if they've thought to build soil with perennial ground cover species..

But as I say this, I realise the tree species seem to change very dynamically from season to season. So I'll have to assume either the temporal rate of change is actually a lot slower than one would expect in a model like this (allowing large tree species to regenerate annually), or there are new coniferous flowering tree varieties in this universe.