For the last several years I've been actively trying to reforest some hayfields - around 20 acres. My state has an amazing program for cheap native tree seedlings, I've planted maybe 250 trees in the last 3 years.
As many threads here discuss (
https://permies.com/t/123718/plant-LOT-trees-efficiently-reforest) the planting is the easy part, keeping them alive is the challenge. I've built and put up more tree cages than I can count (fencing the whole area isn't feasible) but between the deer and watering and mulching it is a very labor intensive process.
I'm not picky about species - I always plant natives and try to match them to their desired locations.
My neighbor moved to this property about 35 years ago, and a portion of the property between us he ignored since then. It was predictably colonized initially by things like sumac, then eastern red cedar, and eventually oaks and other species started to pop through to eventually take over.
I love the process, but I'm questioning whether the active approach is in any way superior. If I don't care about the intermediate aesthetics or access, is there any reason why me guessing which species should grow in a particular location or configuration would be more successful in the long run than just walking away (with occasional forays to remove invasive species)?
I'm also a little influenced by recently reading The Hidden Life of Trees which may have some shaky science, but makes some reasonable arguments about the advantages of a hands off approach.
I'm sure there isn't a definitive answer, but I'm relatively new to this, and curious to hear what the experience has been for others with similar goals.