Uses of Water

How do we use water?

• Drinking • Growing food• producing goods• recreation• maintaining healthy

ecosystems

Water Consumption

• Humans use six times as much water today as they did 100 years ago.

Developed Countries Use More Water

Consumptive and Non-Consumptive Use of Water

• Non-consumptive – water can be recycled and reused

• Consumptive - water can not be reused

Agriculture

• Irrigation of crops can waste water.–Overhead

sprinklers–Trench irrigation–Flood irrigation

• Between 15% and 36% of the water evaporates before it reaches the crops.

Over head sprinklers

Trench Irrigation

Flood Irrigation

Drip Irrigation Save Water

• Water is deposited at the roots of the plants.

Aquaculture – Fish Farms

• Raising fish on farms is good for the food supply but these farms can cause problems to our water supply.