Author: Raymond Lee Nace
Publisher:
ISBN:
Category : Box Butte County (Neb.)
Languages : en
Pages : 50

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Author: Mark S. McBride
Publisher:
ISBN:
Category : Irrigation water
Languages : en
Pages : 64

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Author: Gordon Sloggett
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 24

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Book Description
Abstract: Ground-water levels are declining from 6 inches to over 5 feet annually beneath 14 million acres of irrigated land in 11 States irrigated mainly by ground water. Pumping costs are rising, and well yields are declining, causing farmers to adjust their irrigation practices. Farmers are adopting new irrigation technologies to improve irrigation efficiency and are changing to crops with lower water requirements in some areas. However, techniques for conserving ground water may not extend the life of aquifers. State and local governments have passed laws severely restricting further irrigation development in about 45 percent of the irrigated area affected by ground-water mining.

Author: H. M. Raghunath
Publisher: New Age International
ISBN:
Category : Groundwater
Languages : en
Pages : 586

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Book Description
This study on ground water contains the following topics: hydrometeorolgy, hydrogeology and acrial photography, and acquifer properties and ground water flow.

Author: United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Water and Power
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 100

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Author: Clarence Everett Tait
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 118

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Author: Marinus G. Bos
Publisher: Springer Science & Business Media
ISBN: 1402089481
Category : Technology & Engineering
Languages : en
Pages : 186

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Book Description
Irrigated agriculture produces about 40% of all food and fibre on about 16% of all cropped land. As such, irrigated agriculture is a productive user of resources; both in terms of yield per cropped area and in yield per volume of water consumed. Many irrigation projects, however, use (divert or withdraw) much more water than consumed by the crop. The non-consumed fraction of the water may cause a variety of undesirable effects ranging from water-logging and salinity within the irrigated area to downstram water pollution. This book discusses all components of the water balance of an irrigated area; evapotranspiration (Ch.2), effective precipitation (Ch.3) and capillary rise from the groundwater table (Ch.4). Chapter 5 then combines all components into a water management strategy that balances actual evapotranspiration (and thus crop yield) with the groundwater balance of the irrigated area (for a substainable environment). Chapter 6 presents CRIWAR 3.0, a simulation program that combines all water balance components into a single simulation procedure. The chapter describes the use of the CRIWAR software for developing water requirement tables and other useful information based on the selected water management strategy. This version greatly expands upon the capabilities of previously published programs.

Author: Edward Arlo Moulder
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 182

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Author: Albert Earl Vinson
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 708

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Author: Donald Arthur Morris
Publisher:
ISBN:
Category : Fremont County (Wyo.)
Languages : en
Pages : 546

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