the bark being underwater or the topsoil being wet all the time? The reason I ask is that I have a water oak on the middle point (refer to my previous post for picturs) that the water line will come up to the base of the tree but not cover it. Half of the root system will be below dry topsoil and the other half will be under water. Will this kill the tree. Can you build up dirt around the base of the tree to prevent water from reaching the bark?

Man, I'm full of questions tonight. Thanks for any input.

I started with nothing, and still have most of it.