Tyler Headrytch wrote:I started reading about anaerobic issues and panicked because I remembered laying the sod directly on top of some of the bare roots as I buried the hole back up with dirt.
Anaerobic conditions can be problematic when they are persistent. Brief and temporary conditions generally have little negative impact with lasting results. Here in tennessee soils can go anaerobic during late winter and early spring when it rains a lot, soils are saturated, and trees and most grasses & forbs are dormant and not drinking any water out of the ground. So rain doesn't instantly make for anaerobic conditions, because raindrops pick up and absorb quite a bit of oxygen falling from the sky. Interestingly, actively growing plants often have a nice growth spurt after a rain shower. Ever notice how a rain shower seems to make garden plants perk up compared to watering them from the faucet? The boost of oxygen brought into a soil from the rainwater is part of that growth response.
No need to panic, I think your trees and soil will be ok. If you suspect anaerobic conditions, they will reveal themselves with a putrid and foul sewer like odor.