Summary:

## Mortality Fluxes Merged to the Column Level

The article describes the process of merging mortality fluxes from vegetation pools to the column level in the land model. Key points:

1. Mortality fluxes of displayed leaf and fine root are distributed to the litter pools (lit1, lit2, lit3) based on the weighted distribution of plant functional types (PFTs) on the column.

2. Mortality fluxes from live and dead stem, and live and dead coarse root pools are merged to the column level and deposited in the coarse woody debris (cwd) pools.

3. Mortality fluxes from storage and transfer pools (e.g., carbohydrate stores) are assumed to be deposited in the labile litter pool (lit1) after being merged to the column level.

4. Equations are provided to calculate the carbon (CF) and nitrogen (NF) fluxes from mortality of various vegetation components to the corresponding litter and coarse woody debris pools.

The summary covers the key points regarding the merging of mortality fluxes from different vegetation pools to the column level and their distribution to the corresponding litter and coarse woody debris pools.