Environmental Management

, Volume 17, Issue 4, pp 453–460 | Cite as

Land use change in California, USA: Nonpoint source water quality impacts

  • Robert Charbonneau
  • G. M. Kondolf
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Abstract

California’s population increased 25% between 1980 and 1990, resulting in rapid and extensive urbanization. Of a total 123,000 ha urbanized in 42 of the state’s 58 counties between 1984 and 1990, an estimated 13% occurred on irrigated prime farmland, and 48% on wildlands or fallow marginal farmlands. Sixty-six percent of all new irrigated farmland put into production between 1984 and 1990 was of lesser quality than the prime farmland taken out of production by urbanization. Factors dictating the agricultural development of marginal farmlands include the availability and price of water and land, agricultural commodity prices, and technical innovations such as drip irrigation systems that impact the feasibility and costs of production. The increasing amount of marginal farmland being put into production could have significant water quality consequences because marginal lands are generally steeper, have more erodible soils, poorer drainage, and require more fertilizer than prime farmlands. Although no data exist to test our hypothesis, and numerous variables preclude definitive predictions, the evidence suggests that new irrigated marginal lands can increase nonpoint source (NPS) pollution for a given size area by an order of magnitude in some cases.

Key words

Nonpoint source pollution Water quality Erosion Prime farmland Watershed management Urbanization Land use conversion Best management practices 

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Literature Cited

  1. AFT (American Farmland Trust). 1986. Eroding choices—emerging issues: The condition of California’s agricultural land resources. American Farmland Trust, Davis, California.Google Scholar
  2. Anton, E., J. Barnickol, and D. Schnaible. 1988. Nitrate in drinking water—report to the legislature. California State Water Resources Control Board, Division of Water Quality, Report No. 88-11WQ.Google Scholar
  3. Archibald, E. 1991. Urban drainage as a source of drinking water contamination. Proceedings of the Protecting Drinking Water Quality at the Source Conference, California Water Resources Center Report No. 76. University of California, Riverside, California.Google Scholar
  4. CDF (California Department of Forestry and Fire Protection). 1988. Forest and Rangeland Resources Assessment Program. California’s Forests and Rangelands: Growing Conflict Over Changing Uses, July.Google Scholar
  5. Clark, E. H. 1985. Costs of soil erosion.Journal of Soil and Water Conservation. 40(1):19–22.Google Scholar
  6. DOF (California Department of Finance). 1986. Demographic Research Unit. Projected total population of California counties, Report 86 P-1, December.Google Scholar
  7. DOF (California Department of Finance). 1990. Demographic Research Unit. Ranking of California cities and counties. Report E-8.Google Scholar
  8. DWR (California Department of Water Resources). 1985–1987. San Joaquin District. San Joaquin Valley drainage monitoring program. Annual district reports for calendar years 1985–1987.Google Scholar
  9. DWR (California Department of Water Resources). 1987. California water: Looking to the future. DWR Bulletin 160–87, November.Google Scholar
  10. Ellis, B. G. 1982. Nitrate contamination of groundwater on the Old Mission Peninsula: Contribution of land reshaping and septic drainfields. Michigan State University, March.Google Scholar
  11. EPA (US Environmental Protection Agency). 1983. Final report of the nationwide urban runoff program. Water Planning Division, Washington, D.C., December.Google Scholar
  12. EPA (US Environmental Protection Agency). 1987. Nonpoint source guidance. Office of Water Regulations and Standards, Washington, D.C., December.Google Scholar
  13. EPA (US Environmental Protection Agency). 1992. Managing nonpoint source pollution. Office of Water, Washington, D.C., January.Google Scholar
  14. Goldman, S. J., K. Jackson, and P. A. Bursztynski. 1986. Erosion and sediment control handbook. McGraw-Hill, New York.Google Scholar
  15. Gunther, A., C. Blanchard, and K. Gardels. 1991. The loading of toxic contaminants to the San Francisco Bay-Delta in urban runoff. Aquatic Habitat Institute, Richmond, California.Google Scholar
  16. Jones and Stokes Associates. 1991. The impacts of farmland conversion in California, Sacramento, California.Google Scholar
  17. Kuhner, J. 1980. Agricultural land use water quality interaction: Problem abatement, project monitoring and monitoring strategies. EPA, September.Google Scholar
  18. Leopold, L. B. 1968. Hydrology for urban land planning—a guidebook on hydrologic effects of urban land use. United States Geological Survey Circular 554.Google Scholar
  19. Myers, C. F., J. Meek, S. Tuller, and A. Weinberg. 1985. Nonpoint sources of water pollution.Journal of Soil and Water Conservation. 40(1):14–18.Google Scholar
  20. OLC (California Department of Conservation, Office of Land Conservation). 1988. Farmland mapping and monitoring program. Farmland conversion report 1984–86. Publication No. FM 88-01C, July.Google Scholar
  21. OLC (California Department of Conservation, Office of Land Conservation). 1990. Farmland mapping and monitoring program. Farmland conversion report 1986–88. Publication No. FM 90-01, September.Google Scholar
  22. OLC (California Department of Conservation, Office of Land Conservation). 1992. Farmland mapping and monitoring program. Farmland conversion report 1988–90. Publication No. FM 92-01, June.Google Scholar
  23. Oltmann, R., J. Guay, and J. Shay. 1987. Rainfall and runoff quantity and quality data collected at four urban land-use catchments in Fresno, California, October 1981–April 1983. United States Geological Survey open file report 84-718, Sacramento, California.Google Scholar
  24. Pacific Data Research. 1990. California Almanac. Pacific Data Resources, Santa Barbara, California.Google Scholar
  25. Reid, L. M., and T. Dunne. 1984. Sediment production from forest road surfaces.Water Resources Research. 20:1753–1761.CrossRefGoogle Scholar
  26. SCS (USDA Soil Conservation Service). 1992. West Stanislaus sediment reduction plan. Water Resources Planning Staff, Davis, California. February.Google Scholar
  27. Singer, M. J., W. W. Wood, Jr., and C. D. Lynn. 1990. Agriculture in California on the brink of a new millennium. University of California Agricultural Issues Center, Davis, California.Google Scholar
  28. Wischmeier, W. H., and D. D. Smith. 1965. Predicting rainfall erosion losses from cropland east of the Rocky Mountains. USDA Agricultural Handbook 282.Google Scholar
  29. Wolman, M. G. 1967. A cycle of sedimentation and erosion in urban river channels.Geografiska Annaler. 49A:385–395.Google Scholar
  30. WRCB (California Water Resources Control Board). Water quality assessment—1990. Division of Water Quality, April, Sacramento, California.Google Scholar

Copyright information

© Springer-Verlag New York Inc. 1993

Authors and Affiliations

  • Robert Charbonneau
    • 1
  • G. M. Kondolf
    • 2
  1. 1.Office of the President Office of Legislative Analysis and Environmental PolicyUniversity of CaliforniaOaklandUSA
  2. 2.Department of Landscape ArchitectureUniversity of CaliforniaBerkeleyUSA

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