Environmental Management

, Volume 33, Supplement 1, pp S309–S317 | Cite as

Irrigation Increases Inorganic Carbon in Agricultural Soils

Article
First Online:

Abstract

Inorganic C reactions are among the most important chemical reactions that occur in irrigated soils and may contribute to the total amount of C sequestered in those soils. Because CO2 can escape from soils to the atmosphere or return to precipitate carbonate minerals, soils are open systems with regard to inorganic C. We measured inorganic and organic C stored in southern Idaho soils having long-term land-use histories that supported native sagebrush vegetation (NSB), irrigated moldboard plowed crops (IMP), irrigated conservation (chisel) tilled crops (ICT), and irrigated pasture systems (IP). Inorganic C and total C (inorganic + organic C) in soil decreased in the order IMP>ICT>IP>NSB. We use our findings to estimate that amount of possible inorganic and total C sequestration if irrigated agriculture were expanded by 10%. If irrigated agricultural land were expanded by 10% worldwide and NSB were converted to IMP, a possible 1.60 × 109 Mg inorganic C (2.78% of the total C emitted in the next 30 years) could be sequestered in soil. If irrigated agricultural land were expanded by 10% worldwide and NSB were converted to ICT, a possible 1.10 × 109 Mg inorganic C (1.87% of the total C emitted in the next 30 years) could be sequestered in soil. If irrigated agricultural land were expanded worldwide and NSB were converted to IP, a possible gain of 2.6 × 108 Mg inorganic C (0.04% of the total C emitted in the next 30 years) could be sequestered in soils. Inorganic C sequestered from land-use changes have little potential to make a significant impact on the concentration of atmospheric CO2. However, when coupled with organic C and altering land use to produce crops on high-output irrigated agriculture while selected less productive rain-fed agricultural land was returned to temperate forest or native grassland, there could be reductions in atmospheric CO2.

Keywords

Carbon sequestration Irrigation Conservation tillage Native sagebrush 
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Literature Cited

  1. Aase, J. K., Bjorneberg, D. L., Sojka, R. E. 1998Sprinkler irrigation runoff and erosion control with polyacrylamide - laboratory testsSoil Science Society of America Journal216811687Google Scholar
  2. Bailey, R. G. 1998Ecoregions of North America. US Department of AgricultureForest Service, US Government Printing OfficeWashington, DCGoogle Scholar
  3. Blake, G. R., Hartage, K. H. 1982Bulk density. Pages 363–375 inPage, A. L.Miller, R. H.Keeney, D. R. eds. Methods of soil analysis. Part 2. Chemical and microbiological propertiesAmerican Society of Agronomy, MadisonWisconsin.Google Scholar
  4. Bucks, D. A., Sammis, T. W., Dickey, G. L. 1990Irrigation for arid areas. Pages 449–548 inHoffman, G. J.Howell, T. A.Solomon, K. H. eds. Management of farm irrigation SystemsAmerican Society Agricultural Engineers. St. JosephMissouri.Google Scholar
  5. Collett, R. A. 1982Soil Survey of Ada County areaUS Department of Agriculture, Natural Resources Conservation Service., US Government Printing OfficeWashington, DC, 182 pp.Google Scholar
  6. Donner, H.E., Lynn, W.C. 1977Carbonate, Halide, Sulfate and Sulfide Minerals. Pages 75– 96 inDinauer, R. C.Nagler, J.Nauseef, J. H. eds. Minerals in the soil environmentAmerican Society of Agronomy, MadisonWisconsin.Google Scholar
  7. Duke, H. R. 1992Water temperature fluctuations and effect on irrigation infiltrationTransactions of the American Society of Agricultural Engineers35193199Google Scholar
  8. Entry, J. A., Sojka, R. E., Shewmaker, G. 2002Management of irrigated agriculture to increase carbon storage in soilsSoil Science Society of America Journal6619571964Google Scholar
  9. Howell, T. A. 2000Irrigations role in enhancing water use efficiency. Pages 67–80 inEvans, R. G.Benham, B. L.Trooien, T. P. eds. National irrigation symposiumAmerican Society of Engineers, St. JosephMissouri.Google Scholar
  10. Keen, M. 1991Drip-trickle irrigation boosts Bedouin farmers yieldsCereal Research 130241012Google Scholar
  11. Kirk, R. E. 1982Experimental design: Procedures for the behavioral sciences. 2nd edBrooks/Cole Publishing, MontereyCalifornia, 911 ppGoogle Scholar
  12. Levy, R. 1980Precipitation of carbonates in soils in contact with waters unsaturated or oversaturated in respect to calciteJournal of Soil Science314151Google Scholar
  13. Lindsay, W. L. 1979Chemical equilibria in soilsJohn Wiley & SonsNew York, 449 ppGoogle Scholar
  14. Loeppert, R. H., and Suarez, D. L. 1996. Carbonate and gypsum. Pages 437–474 in D. L., Sparks, A.L. Page, P.A. Halmke, R.H. Loeppert, P.N. Solterpour, M.A. Tabatabui, C.T. Johnson, and M.E. Sumner (eds.). Methods of soil analysis. Part 3, Chemical Methods D. L.. American Society of Agronomy, Madison, Wisconsin.Google Scholar
  15. Nelson, D. W., Sommers, L. E. 1996Total carbon, organic carbon and organic matter. Pages 961–1010 inBigham, J. M. eds. Methods of soil analysis. Part 3. Chemical and microbiological propertiesAmerican Society of Agronomy, MadisonWisconsinGoogle Scholar
  16. Robbins, C. W. 1985The CaCO3–H2O system in soilsJournal of Agronomic Science1437CrossRefGoogle Scholar
  17. SAS Institute Inc1996SAS user’s guide: statistics – Version 6.03 editionStatistical Analysis System (SAS) Institute IncCary, North Carolina, 584 ppGoogle Scholar
  18. Schlesinger, W. M. 1999Carbon sequestration in soilsScience2842095CrossRefGoogle Scholar
  19. Snedecor, W. G., Cochran, W. G. 1980Statistical methods. 7th edIowa State University PressAmes, Iowa, 354 ppGoogle Scholar
  20. Suarez, D. L. 1977Ion activity products of calicum carbonate in waters below the root zoneSoil Science Society of America Journal41310315Google Scholar
  21. Tribe, D. 1994Feeding and greening the world: The role of agricultural researchCAB International, WallingfordUnited Kingdom, 274ppGoogle Scholar
  22. Trout, T. J., Kincaid, D. C., Westermann, D. T. 1994Comparison of russet Burbank yield and quality under furrow and sprinkler irrigationAmerican Potato Journal711528Google Scholar
  23. Unger, P. W., Howell, T. A. 1999Agricultural water conservation — A global perspective. Pages 1–36 inKirkham, M. B. eds. Water use and crop productionFood Products Press, BinghamtonNew York.Google Scholar
  24. West, T. O., Marland, G. 2001A synthesis of carbon sequestration, carbon emissions, and net carbon flux in agriculture: comparing tillage practices in the United StatesAgriculture, Ecosystems and Environment91217232Google Scholar

Copyright information

© Springer-Verlag New York, Inc. 2004

Authors and Affiliations

  • James A. Entry
    • 1
  • R. E. Sojka
    • 1
  • Glenn E. Shewmaker
    • 2
  1. 1.USDA Agricultural Research ServiceNorthwest Irrigation and Soils Research LaboratoryKimberly, Idaho 83341USA
  2. 2.University of IdahoResearch and Extension CenterTwin Falls, Idaho 83303-1827USA

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