Because they allowed growth (through the use of excess moisture not natural to the native environment) where, historically, growth could not have happened without human intervention. Areas that had low moisture levels and couldn't be used for growing crops, were (and are) now able to grow crops.
There are regions where irrigation systems would be particularly important for early North Americans. The great plains did well with irrigation.
they used the irrigation system and sand bags Ryley,albino69
By giving early people more rain and some times sun
↓yes↓ ↓shmegma↓
Early agriculture can be separated into two main categories -- plantation farming with slaves and small free farmers.
There are regions where irrigation systems would be particularly important for early North Americans. The great plains did well with irrigation.
Flooding was an extreme problem with the early farmers. The two inventions that helped them deal with the flooding problem were seed plows and irrigation systems.
Plow and irrigation system
Complex irrigation systems.
Through irrigation canals
they used the irrigation system and sand bags Ryley,albino69
By trapping water in dams and weirs, and leading irrigation channels through the fields.
irrigation
They provided water for irrigation and agriculture.
Early Native American farmers used their agricultural techniques to domesticate corn. Despite this, their farms were generally unproductive and they relied heavily on hunting and gathering.
The Harappans were important because they developed an early form of south Asian writing, and they had a high civilization with a good standard of living, central government, agriculture, irrigation and sewage systems, and trade with other early civilizations such as Sumer. They shipped copper, cotton, stone beads and tin to many ports in the ancient world.
It helped with all of the planting and giving water to the dry area. They also made irrigation systems off of the Nile to bring water to crops.