Water Management

Regenerative agriculture significantly improves water infiltration and retention through practices that enhance soil structure, increase organic matter, and support a thriving soil ecosystem. This flows on to less need for irrigation, reduced soil erosion, better crop or pasture yields during dry spells, greater water security, and improved farm economics.

1. Improved Soil Structure

Practices like no-till farming, cover cropping, and rotational grazing prevent soil compaction, allowing water to penetrate more easily. Plant roots, especially from diverse cover crops, create channels that help water move deeper into the soil. Fungal networks, particularly mycorrhizal fungi, bind soil particles together, forming aggregates that create pore spaces for water infiltration.

2. Increased Organic Matter

Organic matter acts like a sponge, holding water and making it available to plants during dry periods. Studies show that for every 1% increase in soil organic matter, soil can hold an additional 20,000 gallons of water per acre. This reduces runoff and erosion while ensuring more consistent moisture availability.

3. Reduced Runoff and Erosion

Regenerative practices prevent soil crusting and compaction, reducing the likelihood of water pooling and running off the surface. Plant roots and soil aggregates slow down water movement, allowing more time for absorption. Vegetative cover from crops or mulch protects the soil from heavy rain impact, minimising erosion.

4. Enhanced Microbial Life

A thriving soil microbiome, including bacteria and fungi, improves soil porosity and water-holding capacity. Earthworms and other soil organisms create tunnels that enhance infiltration and prevent surface water stagnation.

5. More Resilient Landscapes

Soils with good water infiltration and retention are more resilient to droughts and floods. Water stored in the soil profile reduces the need for irrigation, lowering input costs for farmers. Groundwater recharge improves as more rainfall is absorbed rather than lost to runoff.

More detailed research

The Integral Role of Water Management in Regenerative Agriculture