According to the IPCC, to meet the 1.5 degree C target we need to be doing 6 GtCO2 of carbon dioxide removal per year by 2050.
It would be very difficult to reach that scale with reforestation and afforestation along in the next 27 years.
Plus, if you simply bury wood it will be broken down over time and release methane. No one has yet developed a scalable way to bury large quantities of wood and keep them from decomposing (startups/researchers are starting to work in this area).