Calculation

The CO₂ storage balance is a simple approach to integrate effects of forest management on carbon storage cinto greenhouse gas balances. For this purpose, based on the comparison of alternative forest management scenarios, the difference in the capacity for carbon storage (forest area, wood products) is related to the difference in wood supply (see Figure). Examples on how the CO₂ storage balance is to be integrated into GHG balances can be found here.

Exemplary calculation of the carbon storage balance based on WEHAM Base Scenario (Scenario 1) and WEHAM Wood Preference Scenario (Scenario 2) for the period 2020 to 2050.

Figure 1: Exemplary calculation
Source: Own presentation based on [2] and [3].

In Hennenberg et al. (2019 [1]), scenarios calculated with three forest models are compared as examples. The carbon storage balance depends on the initial situation of the stands (e.g. tree species composition and age structure) as well as assumptions on wood use and the time period considered. It can be calculated for forest biomass and wood products or for forest biomass only. In order to determine a range of carbon storage balance values, the carbon storage balance should be calculated for different initial situations and assumptions. In addition, to back up the trend of these results, it is useful to perform comparable calculations with different models. We invite scientists to share their own scenarios. From the comparison of these scenarios for different geographical units (e.g. Germany, federal state, region, stand level) and different assumptions on forest management, this data collection can be expanded and the CO₂ storage balance further differentiated. In a recent analysis of more than 230 different scenario combinations of forest management in Europe and other regions a value of the CO₂ storage balance of 1.6 tC/tC (equivalaent to about 1.6 t CO₂/m³) was estimated. For contributions to the database please contact: ).

For comparison:

References: