Burkhard Neuwirth

TL;DR: Megadroughts reconstructed over north-central Europe in the 11th and mid-15th centuries reinforce other evidence from North America and Asia that droughts were more severe, extensive, and prolonged over Northern Hemisphere land areas before the 20th century, with an inadequate understanding of their causes.

TL;DR: To evaluate the climate sensitivity of model-based forest productivity estimates using a continental-scale tree-ring network, a network of about 100,000 trees across the globe is analyzed.

TL;DR: The wider oak rings that are exhibited during this period may be indicative of a nonlinear or threshold-induced growth response to drought and vapor pressure, and run counter to the general response of oak to droughtand precipitation that normally would result in suppressed growth in a warmer and drier environment.

TL;DR: Species-specific and regional differences in long-term climate sensitivities, as evidenced by temporal variability in drought sensitivity, are potential indicators for a changing climate that effects Central-West German forest growth, but meanwhile hampers a general assessment of these effects.

TL;DR: In this paper, a new Norway spruce (Picea abies (L.) Karst) tree-ring width chronology based on living and historic wood spanning the AD 1108-2003 period is developed.