acequias are gravity-driven waterways, similar in concept to a flume. Most are simple ditches with dirt banks, but they can be lined with concrete. They were important forms of irrigation in the development of agriculture in the...

Automated Coastal engineering Syatem

a substance that has a  pH  of less than 7, which is neutral. Specifically, an acid has more free hydrogen ions (H + ) than hydroxyl ions (OH - ).

Alternate Concentration Limits

the volume of water required to cover 1 acre of land (43,560 square feet) to a depth of 1 foot. Equal to 325,851 gallons or 1,233 cubic meters.

Australian Capital Territory

Asian Development Bank

the process of water being attracted or adhering to other substances

Acre Feet (or Acre - Foot)

Acre - Feet per Year

sometimes water or soils contain an amount of alkali (strongly basic) substances sufficient to raise the  pH  value above 7.0 and be harmful to the growth of crops.

the capacity of water for neutralizing an acid solution.