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Document Type

Research

Keywords

resource productivity, environment, erosion, exports

Abstract

A national model was constructed to evalute the Iowa conservancy law as it might affect environmental quality, land productivity, export potentials and income of the Iowa and national farm sectors. The mathematical model analyzed 12 land classes in each of 12 Iowa agroclimatic regions and in 105 natural agroclimatic regions. Alternatives analyzed included limiting annual soil loss per acre to 2.5 and 5 tons, reduction of chemical nitrogen and shift of pesticides to organophosphates and carbamates in Iowa while parallel adjustments are not made in the rest of the nation's agriculture. Exports at various levels are evaluated. While full implementation of Iowa's conservancy law apart from the nation would maintain land productivity in the state, farm income would decline in Iowa but increase elsewhere, with increased exports, Iowa would gain in farm income but by a smaller proportion than the rest of the nation.

Publication Date

December 1977

Journal Title

Proceedings of the Iowa Academy of Science

Volume

84

Issue

4

First Page

163

Last Page

167

Copyright

© Copyright 1977 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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