Irrigation was necessary in the Tigris-Euphrates valley due to the region's arid climate and unpredictable rainfall patterns. The fertile soil, known as alluvial soil, was ideal for agriculture, but crops required consistent water supply to thrive. By developing irrigation systems, ancient civilizations could channel river water to their fields, enabling them to cultivate surplus crops and support growing populations. This agricultural advancement was crucial for the rise of complex societies in Mesopotamia.
after he introduced irrigation to the Yellow River valley.
There are some areas/places in the world who experience lack of rain fall seasonally and their irrigation is necessary .
Farmers get their water by the irrigation. (called the Central Valley Project)
the people of the Indus Valley were creating an irrigation system
Coastal valley
provides water for irrigation
Complex irrigation systems.
They used Canals.
the California aqua duct
San Francisco bay
No it is Mississippi
Sam H. Johnson has written: 'Costs and returns for selected crops in Closed Basin, San Luis Valley, Colorado, 1974' -- subject(s): Economic aspects, Economic aspects of Irrigation farming, Irrigation farming, San Luis Valley Project, Statistics 'Can farmers afford to use the irrigation wells after turnover?' -- subject(s): Irrigation pumps, Irrigation, Management