The answer to 'why is my paver dead trees' is that there are a few common causes for dead trees around pavers, including soil compaction, root damage, and lack of water. Soil compaction from the weight of the pavers can restrict the tree's root growth and access to nutrients and water. Roots may also be damaged during the paver installation process. Additionally, the paving stones can prevent adequate water from reaching the tree's roots.
To address this issue, you'll want to first assess the overall health of the tree. If it's severely damaged or declining, it may be best to remove the tree and replant with a more suitable species for the paved area. However, if the tree still appears relatively healthy, you can try aerating the soil around the roots, providing more frequent deep watering, and potentially even removing a few pavers to allow more water and air flow.