Soil Carbon Accumulation and CO₂ Flux in Experimental Restoration Plots, Southern Iceland: Comparing Soil Treatment Strategies

Figure 5

Scatter plots of soil carbon versus soil CO₂ flux for individual samples shown for all four treatments, with slope and of regression line: (a) = control; (b) = fertilizer/grass; (c) = grass, birch, and willow; (d) = lupine.

(a)

(b)

(c)

(d)