Why is the content of this map important?
NBP is described in the IPCC as the net carbon accumulated by the terrestrial biosphere, and represents an approach to measure long-term carbon storage. Regions are seen as more vulnerable if NBP is expected to diminish in the future, coupled with a low capacity to adapt to changes in climate, estimated by adaptive capacity indicators.
Which sectors are affected by this result?
Changing NBP has important implications for the forestry and ecosystem services sectors, and has an impact on how much carbon can be stored in terrestrial ecosystems, relevant for climate change mitigation. Changing NBP could have large impacts on timber products as well as services such as recreational activities.
What is shown on the maps?
The map depicts estimated future vulnerability of regions to changing NBP, derived from an indicator-based approach. Vulnerability is the combination of the potential increase of impacts with the ability - or lack thereof - of a region to adapt to these changes, measured by its adaptive capacity (AC). Estimates of AC are combined with an estimate of changing NBP from impacts modeling, transformed into an indicator of the severity of change. An area with a high loss of NBP, combined with low AC, is seen as highly vulnerable, whereas regions with little to no loss in NBP and high AC are viewed as less vulnerable. Most regions of the EU will face low vulnerability to changing NBP, with the exception of some northern latitudes.
Details and further information:
This map is the combination of impacts with adaptive capacity; impact indicators were derived from a multi-model ensemble estimate of changing NBP in grams per square meter per year, while estimates of AC were produced via an indicator approach, which can be seen in the Atlas map on the adaptive capacity of ecosystem services. Further information can be found in Impact2C Deliverable 10.2
Keith Williges
International Institute for Applied Systems Analysis (IIASA)