Fig. 1: Distribution of sample locations and intrinsic soil carbon turnover data.
From: Projected soil carbon loss with warming in constrained Earth system models
a The spatial distribution of long-term temperature-controlled soil incubation experiments. b–d The boxplots showing the distributions of intrinsic soil carbon turnover times (τi) of Cfast (b), Cslow (c) and Cpassive (d) that are inverted from all experiments within each of the eight biomes, respectively. The eight biomes are tropical forest (n = 53), temperate forest (n = 73), boreal forest (n = 33), cropland (n = 59), grassland (n = 69), shrubland (n = 8), tundra (n = 64) and wetland (n = 15), respectively. On each box, the central black line marks the median, the edges of the box correspond to the 25th and 75th percentiles, the whiskers extend to the range of the data, and the outliers are shown as dots.
