Figure 3
From: Secondary dispersal driven by overland flow in drylands: Review and mechanistic model development
Sensitivity of BOB-CELC displacements to storm and landscape properties showing the mean final seed location as a function of its initial position. (A) Increasing vegetation patch sizes 30 m (i), 100 m (ii) and 300 m (iii). The dots on all panels indicate that seeds initiated from this position ‘escape’ from the vegetated patch in the simulation, all other seeds are trapped within the patch at the end of the storm. (B) Increasing the infiltration contrast between bare and vegetated sites (λ = 0, 2 and 4) (C) Increasing land surface slope (So = 5, 10 and 20%). (D) Increasing rainfall intensity (P 2.5, 5 and 7 cm/hr-1 shown, P = 1.1 and 1.5 cm/hr-1 also tested). (E) Increasing the duration of the storm (tstorm = 300, 600 and 900 seconds). Baseline conditions are for a 150 m long bare patch, P = 5 cm/hr-1, tstorm = 300 seconds, λ = 2, So = 0.1 and a 300 m vegetated patch.