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2. Acre-foot - Wikipedia

   en.wikipedia.org/wiki/Acre-foot

   As the name suggests, an acre-foot is defined as the volume of one acre of surface area to a depth of one foot. Since an acre is defined as a chain by a furlong (i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 m 3). There has been two definitions of the acre-foot (differing by about 0.0006%), using ...

3. Acre - Wikipedia

   en.wikipedia.org/wiki/Acre

   One acre equals 1 ⁄ 640 (0.0015625) square mile, 4,840 square yards, 43,560 square feet, [2] or about 4,047 square metres (0.4047 hectares) (see below).While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based.

4. Glossary of agriculture - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_agriculture

   acre-foot A customary unit of volume defined as the volume of one acre of surface area to a depth of one foot, commonly used in the United States about large-scale water or soil resources. One acre-foot is equal to 43,560 cubic feet (1,233 m 3). adjuvant A chemical compound added to a pesticide formulation to increase its efficacy or safety. [2]

5. California reports the first increase in groundwater supplies ...

   www.aol.com/news/california-reports-first...

   The state saw 4.1 million acre-feet of managed groundwater recharge in the water year ending in September, and an 8.7 million acre-feet increase in groundwater storage, California’s Department ...

6. Talk:Acre-foot - Wikipedia

   en.wikipedia.org/wiki/Talk:Acre-foot

   If you are growing rice in a wet area, it still takes an acre-foot of water to flood a 1 acre field to a depth of 1 foot. That's just the definition of the unit. Lieutenant pepper 16:41, 6 March 2014 (UTC) A one acre rice paddy naturally flooded with rainwater is not water consumption, though, and while its volume would indeed be an acre-foot ...

7. Public Land Survey System - Wikipedia

   en.wikipedia.org/wiki/Public_Land_Survey_System

   In the original Homestead Act of 1862, during the Lincoln administration, each settler was allocated 160 acres (0.65 km 2) of land, a quarter-section. Later amendments of the Homestead Act allocated more land, as much as 640 acres (2.6 km 2), a section. This was a good revision to apply to land that was drier or more desolate than the earlier ...