Subsurface, infiltration processes

• interception, infiltration through cracks, evaporation through cracks

• annual means very different from single (heavy) rainfall event

• infiltration hotspots (Voter & Loheide 2018):

  • disconnected downspout

  • disconnected sidewalk

  • transverse slope on front walk and driveway

  • decompacted soil

  • microtopography

equation for infiltration processes

depends on:

• soil suction head

• porosity

• hydraulic conductivity

• time

• under saturated conditions

improved:

• infiltration rate

• bearing capcity

• shoot length

• root development