A comparison of studies that examined the impact of biochar amendments on soil saturated hydraulic conductivity (K) and bulk density (ρd).

a Biochar application rate reported in paper.b Biochar application rate converted using bulk density of soils or column materials provided in the paper and assuming tillage depth of 10 cm.NR: not reported.NA: not applicable.Biochar amendment rates are provided two ways: the units provided by the study and in tons biochar ha−1. The conversion assumed a tillage depth of 10 cm and the bulk density of the soil or column materials provided in the paper. Studies are organized by soil type, top to bottom: organic-rich soils, clay- and silt-rich soils, and sandy soils. Results from this study are in italics.A comparison of studies that examined the impact of biochar amendments on soil saturated hydraulic conductivity (K) and bulk density (ρd).