Figure 1: Ecosystem responses to drought and warming across a European aridity gradient.
From: Shrubland primary production and soil respiration diverge along European climate gradient
Drought (a) and warming (b) effects on mean aboveground net primary production (aNPP, grey) and mean soil respiration (Rs, colour gradients) for each experimental site across the Gaussen Index (GI) of Aridity: GI ± standard error (of response means across years). Linear regression was performed across the GI, excluding UK for the Rs response. See text for details. Solid line = significant regression with p < 0.05, dashed line indicates trend with = p = 0.131. IT = Italy, SP = Spain, HU = Hungary, M = Denmark Mols site, B = Denmark Brandbjerg site, NL = The Netherland, UK = United Kingdom.
