Theme: Water source and availability

In each irrigation area, there is a demand for water and a supply of water. The demand for water varies over time and depends on the types of crops, crop growth stages and on the climate. The most common sources of water for irrigation include rivers, reservoirs and lakes, and groundwater. The possibility of supplying as much water to the irrigation area as is needed during each period of the irrigation season depends primarily on the availability of the water at its source. Availability may vary a lot over the year, or even between one year and another. This database focuses on water storage methods and ways to calculate the water storage capacity needs of the farm