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253 results found
DRAINMOD-based watershed models have been developed and tested using data collected from an intensively instrumented research site on Kendricks Creek watershed near Plymouth. NC. These models were applied to simulate the hydrology and nitrate nitrogen (NO3-N) loading from two other watersheds in…
Author(s): George M. Chescheir, Glenn P Fernandez, R. Wayne Skaggs, Devendra M. Amatya
Keywords: drainage, BMP, nitrogen, watershed, DRAINMOD, water quality
Source: Pp. 291-301 in Drainage VIII Proceedings of the Eighth International Symposium, 21-24 March 2004 (Sacramento, California USA), Publication Date 21 March 2004. ASAE Publication Number 701P0304, ed. R. Cooke.
Year: 2004
Watershed scale hydrology and water quality models (DRAINMOD-DUFLOW, DRAINMOD-W, DRAINMOD-GIS and WATGIS) that describe the nitrogen loadings at the outlet of poorly drained watersheds were examined with respect to their accuracy and uncertainty in model predictions. Latin Hypercube Sampling (LHS)…
Author(s): Glenn P. Fernandez, George M. Chescheir, R. Wayne Skaggs, Devendra M. Amatya
Keywords: drainage, BMP, nitrogen, watershed, DRAINMOD, water quality
Source: Pp. 281-290 in Drainage VIII Proceedings of the Eighth International Symposium, 21-24 March 2004 (Sacramento, California USA), Publication Date 21 March 2004. ASAE Publication Number 701P0304, ed. R. Cooke.
Year: 2004
Managing forested wetland landscapes for water quality improvement and productivity requires a detailed understanding of functional linkages between ecohydrological processes and management practices. Studies are being conducted at Center for Forested Wetlands Research (CFWR), USDA Forest Service…
Author(s): Devendra M. Amatya, Carl C. Trettin, R. Wayne Skaggs, Timothy J. Callahan, Ge Sun, Masato Miwa, John E. Parsons
Keywords: ecosystem, watershed, vegetation, hydroperiod, drainage, nutrients, models
Source: Written for presentation at the 2004 ASAE/CSAE Annual International Meeting Sponsored by ASAE/CSAE Fairmont Chateau Laurier, The Westin, Government Centre Ottawa, Ontario, Canada 1-4 August 2004. An ASAE/CSAE Meeting Presentation Paper Number: 042132
Year: 2004
Downstream impacts to aquatic environments and property generally occur as cumulative watershed impacts, which are usually caused by changes in the transport of woody debris, water, and sediment through a watershed. The downstream cumulative impacts that are likely to accrue from implementation of…
Author(s): Leslie M. Reid
Keywords: PSW4351, cumulative watershed impacts, woody debris, watershed, hillslope hydrology, streamflow, erosion, sediment transpor
Source: Unpublished report prepared at the request of Congressman George Miller and EPA, 15 November 1998. 68 p.
Year: 1998
The distribution of erosion and deposition in a basin--and thus of the major controls on basin evolution--is dependent upon the local balance between sediment transport and sediment supply. This balance, in turn, reflects the nature, strength, and distribution of interactions between hillslope and…
Author(s): Leslie M. Reid
Keywords: PSW4351, watershed, hillslope, channel, sediment transport, sediment supply
Source: EOS, Transactions, American Geophysical Union 69(44): 1225.
Year: 1998
Current knowledge of erosional processes in mountainous watersheds is reviewed with emphasis on the west coast of the United States. Appreciation of the relative magnitude of erosional processes may be distorted by the tendency for researchers to study ""problems"" and by the relatively short time…
Author(s): R. M. Rice
Keywords: PSW4351, watershed, erosion processe
Source: EOS, Transactions, American Geophysical Union 62(45): 855.
Year: 1981
Although it is unquestionably prudent to consider the cumulative watershed effects (CWEs) of timber harvesting, the presumed CWE phenomena offer limited opportunity for scientific inquiry. We are addressing two questions: are there synergistic sedimentation effects of sufficient magnitude to…
Author(s): R. M. Rice, R. R. Ziemer, J. Lewis, T. E. Lisle
Keywords: PSW4351, watershed, cumulative watershed effects, CWE, erosion, sedimentation, bed stabilit
Source: EOS, Transactions, American Geophysical Union 70(43): 1122.
Year: 1989
Although the title of our plenary session speaks generally of ""development"", virtually all of our discussion (and that in the other two plenary sessions) dealt with the effect of forest practices. That emphasis is appropriate. Seventy percent of the State's utilizable streamflow comes from…
Author(s): Raymond M. Rice, Neil H. Berg
Keywords: PSW4351, watershed, cumulative watershed impacts, streamflow, CW
Source: In: R. Z. Callaham and J. J. DeVries (Tech. Coord.), Proceedings of the California Watershed Management Conference, 18-20 November 1986, West Sacramento, California. Wildland Resources Center, University of California, Berkeley, California. Report No. 11. February 1987. p. 150-152.
Year: 1987
A preliminary progress report of the research on the stream ecology of Caspar Creek by Humboldt State College was submitted by Dr. John DeWitt in December,1965, (DeWitt 1965). Further analyses of data collected during the summer of 1965 allows a more complete report to be made at this time.…
Author(s): Richard L. Ridenhour
Keywords: PSW4351, Caspar Creek, watershed, stream ecology, road construction, logging
Source: Unpublished report, Humboldt State College. 30 June 1966, 27 p.
Year: 1966
As part of a brief study tour in California, I had the good fortune of spending a very pleasant day on the Caspar Creek watershed, ably guided by Peter Cafferata and Liz Keppeler. Amongst the many notable achievements of the Caspar Creek Study is its longevity. The study started in 1962 and has…
Author(s): Nick Schofield
Keywords: PSW4351, Caspar Creek, watershed, stormflow, clearcut, sedimen
Source: Land and Water Research News 3: 24-27. Western Australia Steering Committee for Research on Land Use and Water Supply, The Water Authority of Western Australia, Leederville, Washington.
Year: 1989
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