The small water cycle
- Johanna Tanhuanpää
- Feb 11
- 1 min read
What is the small water cycle?
The small water cycle refers to the continuous movement and recycling of water within a localised area. The global water cycle is where water is exchanged between vast regions like oceans, continents, and the atmosphere, whereas the small water cycle is confined to a relatively small region, such as a landscape.
Why is the small water cycle important for agricultural water management?
Enhanced soil moisture retention: Regenerative practices like cover cropping, reduced tillage, and organic amendments improve soil structure and increase organic matter. This boosts the soil's ability to absorb and hold water, ensuring that moisture remains available for plants rather than being lost to runoff.
Improved infiltration and groundwater recharge: With healthier soils, water from rainfall can infiltrate more easily. This not only replenishes groundwater but also creates a stable supply of water for crops, reducing the need for supplemental irrigation.
Reduced runoff and erosion: By keeping water within the local system, the small water cycle minimizes surface runoff. This decreases erosion, preserving soil fertility and structure, whic are critical elements for long-term agricultural productivity.
Local climate regulation: A robust small water cycle contributes to local microclimates. Through processes like transpiration and evaporation from healthy soils and vegetation, local humidity levels are maintained, which can help moderate temperatures and support overall ecosystem health.
Resilience to climate variability: By optimizing water retention and reducing water loss, regenerative agriculture systems become more resilient to droughts and extreme weather events. This stability is key for sustaining crop yields and protecting the environment over time.
