Structural characteristics mediate forest mitigation potential against climate change and biodiversity loss

Area of Science:

• Forest Ecology
• Conservation Biology
• Climate Change Mitigation

Background:

• European forests are vital for climate mitigation and biodiversity.
• Silviculture has shaped forests for centuries, influencing their structure and ecological roles.
• Understanding management impacts on forest structure is crucial for balancing climate and biodiversity goals.

Purpose of the Study:

• To analyze the interplay of forest structure, carbon stocks, and species richness in European temperate forests.
• To identify forest structural characteristics positively correlated with both carbon stocks and species richness.
• To inform forest management strategies for climate change mitigation and biodiversity conservation.

Main Methods:

• Analysis of data from diverse temperate European forests under various management regimes.
• Utilizing structural equation modeling to assess relationships between forest structure, carbon stocks, and species richness.
• Examining correlations between stand age, tree species richness, deadwood characteristics, and taxonomic group richness.

Main Results:

• Increasing stand age and tree species richness positively influenced deadwood carbon stocks.
• Richness of deadwood types correlated positively with species richness of birds, beetles, fungi, and deadwood carbon stocks.
• Trade-offs exist: increased living wood carbon stocks negatively impacted bird and plant species richness, while positively affecting beetle richness.

Conclusions:

• Forest management policies prioritizing living biomass may not simultaneously address climate and biodiversity crises.
• Deadwood diversity is a key factor linking carbon storage and biodiversity.
• Forest management strategies should emphasize deadwood diversity for effective climate mitigation and biodiversity conservation.