Table 3 Components used to calculate the net land carbon flux for the Brazilian Amazon and the whole Biogeographical Amazon.

Bottom-up

Net disturbance (+):

Multi-model average of INPE-EM (deforestation + degradation);

BLUE E_LUC + FATE net degradation fire flux;

GFED (net deforestation and degradation)^b

Net old-growth forest sink (−):

TRENDY-v11 Multi-model average³⁹

The bottom-up net land flux is calculated from the sum of the net disturbance multi-model average and the TRENDY-v11 net old-growth forest sink

Net disturbance (+):

BLUE E_LUC + FATE net degradation fire flux^a

Net old-growth forest sink (−):

TRENDY-v11 Multi-model average³⁹

The bottom-up net land flux is calculated from the sum of net disturbance flux of BLUE + FATE and TRENDY-v11 net old-growth forest sink

Disturbance (+):

GFED (net deforestation and degradation)^b

Hybrid

-

Net old-growth forest sink (−):

TRENDY-v11 Multi-model average³⁹

The hybrid net land flux is calculated from the sum of GFED net fire emissions and TRENDY-v11 net old-growth forest sink

CARDAMOM

-

Net land flux from CARDAMOM model^41,42

Top-down inversion

Net land flux from TOMCAT atmospheric inversion³⁸

Net land flux from TOMCAT atmospheric inversion³⁸