Coupled Water Fluxes and Pore-Scale Dynamics

Interactive widget, key figures, and video simulations from the 10,190-run study

Interactive widget: soil-water suction (tensiometer) and irrigation, 1980–2000

Drag the range slider to move through the 20-year record and see how suction at 20 cm depth responds to rainfall and irrigation, for both an irrigated and a rainfed soil.

Key figures

Key synthesis figure
Soil pore structure gates management controllability of drainage, yield, irrigation efficiency and nitrogen leaching.
Trigger law
A soil-independent irrigation trigger law: sensor thresholds collapse when expressed as root-zone depletion.
Mulch water balance
The fate of evaporation saved by mulching: a rain-dependent switch from irrigation saving to drainage.
Regime map
Regime map of soil-atmosphere feedbacks: where losses switch from evaporation to drainage.

Video simulations

V6. Can we identify drivers of change in soil hydraulic properties, and is mulching a dynamic control on evaporation? (real E5, E7, E14 data)

V1. Sensor suction and irrigation events through the 1994 season

V2. Soil profile evolution (pressure head with depth) through 1994

V3. Tillage and structural consolidation over 20 years

V4. Mulched vs bare soil evaporation, 1994

V5. Feedback-loop trajectories through the 1994 season

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