Not necessarily, if one make bio-char from the wood the carbon is stable for ~10k years, even if buried in the soil (terra pretax). This can be done successfull

Not necessarily, if one make bio-char from the wood the carbon is stable for ~10k years, even if buried in the soil (terra pretax). This can be done successfully during the gasification process for producing heat, syngas and electricity. Also any items made from the wood that do not rot will not release their CO2 for the lifetime of the product.