The indicator refers to carbon stock, i.e., the amount of carbon stored in Italy across the different forest carbon pools, and to the variation in carbon stock (carbon sink), which accounts for both the carbon sequestered and the emissions released due to wildfires, harvesting, and natural mortality within national forest ecosystems.
Carbon stock and carbon sink are effective indicators for assessing the condition of a country’s forest resources, as they are influenced by forest productivity and, negatively, by both natural and anthropogenic disturbances (such as fires, logging, pests and pathogens, natural mortality, etc.).
Carbon stocks in Italian forests are increasing, indicating a net positive balance between greenhouse gas (GHG) emissions and removals (carbon sink). This trend is partially driven by conservation and forest protection policies and, on the other hand, by a decrease in harvested timber volumes due to complex economic and social factors.
Emissions from forest fires remain a significant concern. The trend of the national carbon sink over the period 1990–2022 has been heavily affected by a reduction in GHG removals associated with areas burned annually. The impact of biomass loss from large-scale wildfires in 1990, 1993, 2007, and 2017 is particularly evident in the carbon sink trend.
This highlights the critical role of wildfires in shaping the contribution of national forests to the global carbon cycle.