Rainfall and runoff quantity and quality data collected at four urban land-use catchments in Fresno, California, October 1981-April 1983

Oltmann, Richard N.; Guay, Joel R.; Shay, J.M.

doi:10.3133/ofr84718

Cited by 5 publications

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

Charbonneau

Kondolf

1993

Environmental Management

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/ 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.Large-scale land use conversion can have significant impacts on both surface water and groundwater quality. These impacts are especially well illustrated in California, where rapid population increase has resulted in conversion of prime agricultural land and undeveloped wildlands to urban uses. Less obvious but more importantly, many marginal lands have been placed into agricultural production with serious water quality implications because the marginal lands are typically more erodible and require greater fertilizer application than prime farmlands.In this study, we review the principal sources of water pollution in California, consider the probable long-term water quality impacts of land use conversion trends, and suggest possible water resource protection strategies.

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

Charbonneau

Kondolf

1993

Environmental Management

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Activities of the Water Resources Division, California District, in the 1985 fiscal year

Anttila¹

1986

Open-File Report

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Project descriptions Continued 413 Vegetation survivability studies in Owens Valley 414 Giardia in the Sierra Nevada 416 Fuel spill at the U.S. Marine Corps air station at Tustin Estimating tidal and residual circulation in San Francisco Bay 424 Southern California Regional Aquifer Systems Analysis Alluvial basins 425 Evaluation of the hydrology of consolidated-rock terrains, with emphasis on Lee Valley, San Diego County 426 Groundwater investigations in Owens Valley 427 Streamflow characteristics and geomorphic changes of Cottonwood Creek 431 Hydrologic studies related to volcanic activity in Long Valley 432 Stable carbon isotope study of primary carbon flux of food chain network of striped bass in the Sacramento-San Joaquin Delta aquatic ecosystem 436 Sediment transport in the San Diego Creek basin 437 Groundwater flow modeling and optimization techniques applied to high groundwater problems in San Bernardino 438 Bonsall groundwater study, San Diego County 439 Preliminary assessment of shoaling in San Leandro Bay, Alameda County 440 Hydrologic impacts of dams to be constructed on Cottonwood and South Fork Cottonwood Creeks 441 An assessment of quality and contaminant transport in the soils and ground water of the western San Joaquin Valley 443 Evaluation of techniques for measuring currents in the San Francisco Bay 446 Erosional processes in the Lake Tahoe basin 447 Water quality of U.S. lakes and reservoirs, with emphasis on eutrophication 448 Geohydrology of the Los Osos groundwater basin, San Luis Obispo County 449 Erosion and sediment transport in the drainage basin of Permanente Creek 450 Hydrologic appraisal of potential landfill sites in southeastern San Diego County 451 Development of an economic optimization model for San Bernardino Valley 454 Performance evaluation of an electromagnetic streamflow gage on Turlock Canal 455 Hydrologic evaluation of a gasoline leak at the Seal Beach Naval Weapons Station 456 Western San Joaquin Valley hydrologic studies Bibliography Sources of WRD publications and information Where to obtain additional information on U.S. Geological Survey programs VI Contents Along with its continuing commitment to meet the growing and changing earthscience needs of the Nation, the USGS remains dedicated to its original mission to collect, analyze, interpret, publish, and disseminate information about the natural resources of the Nation providing "Earth science in the public service.

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Simulation of quantity and quality of storm runoff for urban catchments in Fresno, California

Guay¹,

Smith²

1988

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Rainfall and runoff quantity and quality data collected at four urban land-use catchments in Fresno, California, October 1981-April 1983

Cited by 5 publications

References 0 publications

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

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

Activities of the Water Resources Division, California District, in the 1985 fiscal year

Simulation of quantity and quality of storm runoff for urban catchments in Fresno, California

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