Biochar particle size, shape, and porosity act together to influence soil water properties - Fig 5

<p><b>Schematic of (a) and (b) sand (dark gray); (c) and (d) sand plus medium biochar (black) on a plot of water retention curves for these two samples.</b> Pores inside of biochar particles were filled with water (light gray) thus increased in water content at saturation as well as field capacity.