Water quality effects of varying crop, fertilizer and carbon prices

T. L. Ng, J. W. Eheart, Ximing Cai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Crop and fertilizer prices have increased dramatically in the past few years. These prices, together with existing demand for carbon trading allowances, affect farmers' decisions. It is useful to assess the effect of varying crop, fertilizer and carbon prices on farmers' decisions, and in turn, the effect of these decisions on surface water quality, specifically the nitrate load from the watershed. To achieve the objectives of this study, a mixed integer optimization model incorporating a hydrologic model of a test site is developed. The Salt Creek watershed in East Central Illinois has been selected as the test site for this study. Simulation results indicate that there is a higher tendency for farmers to produce corn in 2007 and 2008 than in previous years. Consequently, the average fertilizer use in that period is relatively high, causing greater levels of nitrate runoff. Results also indicate that at current carbon prices, carbon trading is ineffective in reducing nitrate runoff.

Original languageEnglish (US)
Title of host publicationProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Subtitle of host publicationGreat Rivers
Pages5188-5191
Number of pages4
DOIs
StatePublished - Oct 26 2009
EventWorld Environmental and Water Resources Congress 2009: Great Rivers - Kansas City, MO, United States
Duration: May 17 2009May 21 2009

Publication series

NameProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
Volume342

Other

OtherWorld Environmental and Water Resources Congress 2009: Great Rivers
CountryUnited States
CityKansas City, MO
Period5/17/095/21/09

ASJC Scopus subject areas

  • Environmental Science(all)

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  • Cite this

    Ng, T. L., Eheart, J. W., & Cai, X. (2009). Water quality effects of varying crop, fertilizer and carbon prices. In Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers (pp. 5188-5191). (Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers; Vol. 342). https://doi.org/10.1061/41036(342)524