Skip to main content
U.S. flag

An official website of the United States government

97 results found
Fragmentation of the land means changes in the vegetative cover. This alone has caused significant and wide spread physical and water quality changes to the streams and rivers in the central and upper Midwest. Removal of the forest canopy that changes land use to "open" conditions: agricultural,…
Author(s): Elon S. Verry
Keywords: Land framentation, streams, fish, upper midwest, canopy, forest
Source: In: Proceedings, Society of American Foresters 2000 national convention; 2000 November 16-20; Washington DC. SAF Publication 01-02. Bethesda, MD: Society of American Foresters: 38-44
Year: 2000
We propose a geomorphic basis for defining riparian areas using the term: riparian ecotone, discuss how past definitions fall short, and illustrate how a linked sequence of definition, delineation, and riparian sampling are used to accurately assess riparian resources on the ground. Our riparian…
Author(s): E. S Verry, C. A Dolloff, M. E. Manning
Keywords: Floodprone area, geomorphology, riparian corridors, riparian ecosystems, riparian resources, streams, streamside management area, streamside management zone, riparian area, valleys
Source: Water. air. and Soil Pllution: Focus 4: 67-94
Year: 2004
We measured breakdown rates of leaves and small wood for the first three years in a stream in which detrital inputs were excluded for 7 years and in a reference stream located in the Appalachian Mountains of North Carolina, USA. Leaf and wood inputs were excluded using a gill-net canopy constructed…
Author(s): Susan L. Eggert, J. Bruce Wallace
Keywords: Organic matter, decomposition, litter exclusion, detritus, resource island, aquatic macroinvertebrates, wood, streams
Source: Arch. Hydrobiology 156(3): 315-338
Year: 2003
Proposes a framework for classifying and mapping aquatic systems at various scales using ecologically significant physical and biological criteria. Classification and mapping concepts follow tenets of hierarchical theory, pattern recognition, and driving variables. Criteria are provided for the…
Author(s): James R. Maxwell, Clayton J. Edwards, Mark E. Jensen, Steven J. Paustian, Harry Parrott, Donley M. Hill
Keywords: aquatic ecology, hierarchical classification, watershed, fish, mussels, streams, rivers, ground water, wetlands, lakes
Source: General Technical Report NC-176. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1995
A retrospective examination of the history of the cumulative influences of past land and water uses on the ecological health of select river basins in forest regions of eastern Washington and Oregon indicates the loss of fish and riparian habitat diversity and quality since the 19th century. A…
Author(s): Robert C. Wissmar, Jeanette E. Smith, Bruce A. McIntosh, Hiram W. Li, Gordon H. Reeves, James R. Sedell
Keywords: History, land uses, rivers, streams, riparian, salmonid, timber, livestock, irrigation, water
Source: Gen. Tech. Rep. PNW-GTR-326. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 65 p. (Everett, Richard L., assessment team leader; Eastside forest ecosystem health assessment; Hessburg, Paul F., science team leader and tech. ed., Volume III: assessment.)
Year: 1994
Stream temperature measurements have been collected in the Caspar Creek drainage on Jackson Demonstration State Forest periodically over the past 25 years. Review of this data and other recently collected data from western Mendocino County illustrates much about the temperature regimes of small…
Author(s): Peter Cafferata
Keywords: PSW4351, Caspar Creek, Jackson State Forest, streams, temperature, canopy reduction
Source: Jackson Demonstration State Forest Newsletter, No. 39, October 1990. p. 1-4.
Year: 1990
Water quality was monitored in 1968 and 1969 in six coastal streams in northern California, four of which were subjected to logging and/or road building (Bummer Lake Creek, South Fork Yager Creek, Little North Fork Noyo River, and South Fork Caspar Creek), while the others remained undisturbed (…
Author(s): Fredric R. Kopperdahl, James W. Burns, Gary E. Smith
Keywords: PSW4351, Caspar Creek, water quality, streams, salmonids, turbidity, logging, water monitoring
Source: Inland Fisheries Administrative Rept. No. 71-12. California Department of Fish and Game, Sacramento, California. 19 p.
Year: 1971
Abstract - For estimating suspended sediment concentration (SSC) in rivers, turbidity is generally a much better predictor than water discharge. Although it is now possible to collect continuous turbidity data even at remote sites, sediment sampling and load estimation are still conventionally…
Author(s): Jack Lewis
Keywords: PSW4351, Caspar Creek, suspended sediment concentration (SSC), turbidity, storm, streams, hydrology, programmable data logger
Source: Water Resources Research 32(7): 2299-2310.
Year: 1996
Editor's note: The measurement of water quality parameters in environmental laboratories follows standard quality control protocols using methodologies approved by the U.S. Environmental Protection Agency. However, little attention has been given to quality assurance and quality control in…
Author(s): Jack Lewis
Keywords: PSW4351, Caspar Creek, water quality, sampling suspended sediment loads, streams
Source: Water Environment Laboratory Solutions 7(2): 10-11.
Year: 2000
Abstract - New understanding of how steepland channels formed is being pursued over a large range of scales, from entrainment of bed particles to the transfer of stored sediment down channel systems. Low submergence of bed particles during transport and wide heterogeneity in particle sizes…
Author(s): T. E. Lisle
Keywords: PSW4351, channel morphology, steepland channels, sediment, bedload transport, streams
Source: In: R. Beschta, T. Blinn, G. E. Grant, F. J. Swanson, and G. G. Ice (ed.), Erosion and Sedimentation in the Pacific Rim (Proceedings of the Corvallis Symposium, August 1987). International Association of Hydrological Sciences Pub. No. 165, p. 287-297.
Year: 1987