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Title:Recycling agricultural runoff
Author(s):Walker, Paul N.; Lembke, Walter D.
Contributor(s):University of Illinois at Urbana-Champaign
Subject(s):Water resource development
Water resource development--Illinois
Water reuse
Farm ponds
Impervious soils
Computer models
Geographic Coverage:Illinois (state)
Abstract:The recycling agricultural runoff concept is the storage of excess water from agricultural land and using this water for irrigation of the same land when moisture supplies are low. Coincidentally, the system also recycles pesticides and nutrients, keeping them out of other parts of the environment. The claypan soils of Illinois appear to be best suited for water recycling when surface storage is used. Sandy soils are best suited to interstitial water storage. A review and analysis of literature on irrigation, drainage, reservoirs, pesticides, and nutrients as it pertains to a recycling system is presented. Nutrient and pesticide recycling result in negligible cost or benefits to agricultural crops. There was insufficient information to determine the economic benefit to the environment of this recycling. A model was developed relating irrigation and drainage to crop yield using intermediate variables of soil moisture and air temperature. The model predicted that an acre-ft. of storage would be required per acre of irrigated watershed. The model was not successful at predicting the increase in yield resulting from irrigation and/or drainage. An example economic analysis reveals that under present conditions recycling agricultural runoff is not economically justifiable as a general practice in the claypan region of Illinois.
Issue Date:1977-01
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Geological Survey
U.S. Department of the Interior
Rights Information:Copyright 1977 held by Walker, Paul N. and Lembke, Walter D.
Date Available in IDEALS:2016-04-18

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