Moisture coefficient
An indicator representing the ratio of annual precipitation to potential evapotranspiration, used to determine moisture availability for crop production.
Также говорят: precipitation-evaporation ratio, moisture index, aridity index
This metric serves as a fundamental tool for agronomic zoning and risk management. It helps farmers decide whether to invest in irrigation infrastructure or focus on drought-tolerant crop varieties to ensure stable yields.
The moisture coefficient guides tillage practices: in arid regions, conservation tillage is essential to minimize evaporation, while in humid zones, management focuses on preventing waterlogging and soil erosion.
A common error is relying solely on long-term historical averages while ignoring short-term climate variability. Effective farm management requires monitoring actual moisture trends during critical growth stages rather than strictly following static annual statistics.