Agricultural Water Management Proceedings of a Workshop in Tunisia (2007) / Chapter Skim
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The Role of Science in Agricultural Water Management
The Role of Science in Agricultural Water Management
Pages 40-50
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From page 40... ...
Western Kansas has some of the largest beef processing facilities in the world. Tall grass prairies and cattle dominate central Kansas where shallow soils and steep topography prevent production of grain crops.
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FIGURE 2 Major surface water supplies. Western Kansas obtains most of its water from groundwater.
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From page 42... ...
Records of the water levels are used to determine absolute changes in storage and saturated thickness and to define declining rates where the aquifer is depleting. Water level measurements are made by the Division of Water Resources, the State's water management agency, and the Kansas Geological Survey which is the earth science research organization for the state.
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From page 43... ...
Long term average annual withdrawals that exceed this amount will result in depletion. To ensure a stable long term ground water supply, development ultimately must be limited by natural recharge.
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Complex methods that apply equations that are assumed more accurate require the most sophisticated and costly climatic data (Natural Resource Conservation Service, 1993)
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Irrigation water use varies with climatic conditions as water users pump water to meet the crop water demand or the net irrigation requirements. During some years, water use reaches the maximum allowable limits and other years it does not.
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From page 46... ...
It is essential that depletion be monitored so future use can be managed to use the remaining resource most effectively. Declines in groundwater levels have been determined from the data collected from the annual water level surveys described previously (Schloss, et al., 2000)
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A useful analysis to plan strategies for this challenge is the projected useable lifetime of the aquifer. This analysis combines a projection of past pumping rates, the saturated thickness, and aquifer 47
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From page 48... ...
This structure is established, refined, and implemented by users working together through a series of organizations of farmers, local interest groups and ground water management districts. The State laws are developed through elected legislative representatives and administered by rules and regulations established by state agencies that work with local users and their representative groups (Huntzinger, 2005)
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From page 49... ...
2005. Local Groundwater Management Districts and Kansas State Agencies Share Authority and Responsibility for Transition to Long Term Management of the High Plains Aquifer: Proceedings of the Third International Conference on Irrigation and Drainage, Water District Management and Governance, U.S.
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From page 50... ...
2000. An Atlas of the Kansas High Plains Aquifer: Kansas Geological Survey Educational Series 14.
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