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Iowa Crop Production and Soil Erosion with Cropland Expansion
Author(s) -
Amos Orley M.,
Timmons John F.
Publication year - 1983
Publication title -
american journal of agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.949
H-Index - 111
eISSN - 1467-8276
pISSN - 0002-9092
DOI - 10.2307/1240496
Subject(s) - environmental science , acre , erosion , san joaquin , crop , crop production , production (economics) , hydrology (agriculture) , agroforestry , agriculture , forestry , soil science , geography , geology , economics , paleontology , archaeology , macroeconomics , geotechnical engineering
A parametric programming model is used to estimate crop production profitability of Iowa's noncropland. The model indicates that Iowa cropland is expandable by five million acres if crop prices double the 1978 level. Additional cropland expansion is less responsive to further crop price increases. The model also indicates that soil erosion from cropland expansion is greater than the state's average. However, if the model constrains soil erosion to under five tons per acre, soil erosion is greatly reduced with only slight reductions in potential cropland.