Determine how much groundwater recharge—measured in cubic meters—can be taken out annually for irrigation without dwindling the groundwater supply.
Determine how much groundwater recharge—measured in cubic meters—can be taken out annually for irrigation without dwindling the groundwater supply.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Problem - 100 cm of precipitation fall each year on a 400 hectare farm. According to estimates, 20% of precipitation travels as runoff to the nearest watercourse and 40% of precipitation evaporates back into the atmosphere. The aquifer receives the remaining precipitation by percolation. All through the year, the aquifer is used to extract water for irrigation. Approximately 80% of the groundwater that is removed eventually evaporates. Determine how much groundwater recharge—measured in cubic meters—can be taken out annually for irrigation without dwindling the groundwater supply.
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