Spatial patterns and temporal dynamics of tree diversity effects on forest responses to drought across Europe

Forests are widely acknowledged to fulfil many functions and services. Yet, climate change is fuelling more frequent and severe droughts causing widespread tree mortality worldwide, thereby altering forest dynamics and jeopardising this potential. Tree species diversity could mitigate this impact, but unambiguous demonstration of how diversity influences drought resistance is still lacking at large temporal and spatial scales. In this research, we will perform a comprehensive analysis of the relationship between tree diversity and defoliation trends using a network of over 6,500 monitoring plots of ICP Forests sampled across the continent. This will be the first large-scale study to analyse the effects of tree diversity on the response of European forests to drought. By considering the various environmental contexts in Europe, we will generate significant new knowledge on the potential of mixed forests to face future disturbances, which is much needed to adapt current practices.

Keywords:Climate change, Forest ecology, Forest management, Biodiversity, Drought impacts

Disciplines:Biotechnology for agricultural, forestry, fisheries and allied sciences not elsewhere classified