What is the recommended tree marking to minimize the chance of wood rot?

The recommended tree marking to minimize the chance of wood rot is the witness tree mark. This marking involves making shallow cuts or using paint that doesn't penetrate deeply into the wood, therefore preventing moisture from entering the tree and leading to internal rot. Witness tree marks are typically used to designate trees that will serve as references for boundary lines or other significant survey markers.

In contrast to witness tree marks, other options might include larger or deeper cuts that can expose the tree’s inner layers to moisture, increasing the risk of decay. Boundary marks and surveyor’s marks, depending on how they are applied, could also potentially damage the tree's bark severely, which can further contribute to rot. Thus, using witness tree marks is a best practice in order to preserve the tree's health while still fulfilling necessary surveying functions.