Summary:

**Livewood Turnover**

This section discusses the conceptualization of live wood versus dead wood fractions for stem and coarse root pools in the model. Unlike leaves and fine roots which are lost to litterfall, live wood cells reaching the end of their lifespan are retained as part of the dead woody structure.

The model includes a mechanism to transfer live wood to dead wood pools, accounting for the different nitrogen concentrations in these tissue types. A live wood turnover rate (r_lwt) is defined as the annual live wood turnover fraction (p_lwt = 0.7) divided by the number of seconds in a year.

The carbon fluxes from live to dead wood pools are calculated as:
- For stems: CF_livestem,deadstem = CS_livestem * r_lwt
- For coarse roots: CF_livecroot,deadcroot = CS_livecroot * r_lwt

The associated nitrogen fluxes, including retranslocation of nitrogen out of live wood during turnover, are also provided in the equations.