Fig. 3: Soil structure effect on areal average infiltration rate.
From: A framework for quantifying hydrologic effects of soil structure across scales
a, b Probability distributions of unstructured (K0, blue bars) and structured (Ks, yellow bars) saturated hydraulic conductivities values shown in the maps of Fig. 1: solid lines show the fitted lognormal distributions (red = structured, blue = unstructured). c, d Steady-state infiltration rate as a function of rainfall rate: solid lines show areal averaged quantities while dotted lines are results obtained assuming homogeneous domains with mean parameter values (yellow = structured, blue = unstructured). The dashed lines are theoretical areal-averages obtained from Eq. (3). The black dash-dotted lines show pdfs and theoretical results obtained by modifying the unstructured distribution using mean LAI and percentage sand values, see Eq. (S8) in the Supplementary Methods. Left and right panels refer to results for the regions in CA and BR, respectively.
