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26 results found
Organic matter in soil controls a variety of soil properties. A study in Humboldt County, California, evaluated changes in percentages of organic matter in soil as a function of time after timber harvest and soil depth in fir and redwood forests. To assess organic matter content, samples were taken…
Author(s): Philip B. Durgin
Keywords: logging effects, organic soil materials, cutover forests, mixed-conifer forests, redwood forests, Humboldt County, California
Source: Res. Note PSW-RN-346. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p
Year: 1980
Preliminary information on general landscape patterns in southeast Alaska suggests that two major, compositionally distinct vegetation zones can be defined for the closed-forest type: western hemlock-Sitka spruce/Alaska huckleberry/bunchberry on the uplands, and Sitka spruce/devils club-salmonberry…
Author(s): Paul B. Alaback
Keywords: Succession (secondary), biomass, understory layer, logging effects, logging (-wildlife, old-growth stands, wildlife management, Alaska (southeast), western hemlock, Sitka spruce
Source: Gen. Tech. Rep. PNW-GTR-173. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 26 p
Year: 1984
Abstract - The effects of logging and associated road construction on four California trout and salmon streams were investigated from 1966 through 1969. This study included measurements of streambed sedimentation, water quality, fish food abundance, and stream nursery capacity. Logging was found…
Author(s): James W. Burns
Keywords: PSW4351, Caspar Creek, logging effects, northern California streams, fish, trout, salmon, sedimentation
Source: Transactions, American Fisheries Society 101(1): 1-17.
Year: 1972
During the summer, orientation surveys were carried out and initial plans for the conduct of the project were completed. Generally, the plans are for the investigation of the short and long-term effects of logging and associated activities on the nature, the ecology, and the productivity of one…
Author(s): John W. DeWitt
Keywords: PSW4351, Caspar Creek, stream ecology, logging effects
Source: Unpublished report, Humboldt State College. 30 June 1965. 7 p.
Year: 1965
The Department of Fish and Game assisted in an interagency study on Caspar Creek, a small coastal stream in Mendocino County. This study included the effects of logging on the stream and its population of silver salmon (Oncorhynchus kisutch) and steelhead trout (Salmo gairdnerii).
Author(s): C. S. Kabel, E. R. German
Keywords: PSW4351, Caspar Creek, logging effects, stream, fish population, silver salmon, steelhead trout
Source: Marine Resources Branch Administrative Report No. 67-4. Sacramento, California: The Resources Agency of California Department of Fish and Game. 27 p.
Year: 1967
The Caspar Creek Experimental Watershed was set up as a traditional paired watershed to investigate the effects of logging and road construction on erosion and sedimentation. Research participants have come from the California Division of Forestry, the Pacific Southwest Forest and Range Experiment…
Author(s): T. E. Lisle
Keywords: PSW4351, Caspar Creek, watershed, sediment, water quality, flood peaks, suspended sediment, bedload, road construction, logging effects, erosion
Source: Pages XIV 1-8, in: A Field Trip to Observe Natural and Management-related Erosion in Franciscan Terrane of Northern California, the Cordilleran Section of the Geological Society of America, 9-11 April 1979
Year: 1979
Consideration of cumulative watershed effects (CWEs) has both political and physical aspects. Regardless of the practical usefulness of present methods of dealing with CWEs, the legal requirement to address them remains. Management of federal land is regulated by the National Environmental Policy…
Author(s): R. M. Rice
Keywords: PSW4351, Caspar Creek, cumulative watershed effects, cumulative impacts, logging effects, fish growth, habitat availability, surface erosio
Source: Proc. Impact '87, Annual Convention of California Licensed Foresters Association. Pioneer, California. 6-7 March 1987. p. 1-12.
Year: 1987
Using a previously treated basin as a control in subsequent paired watershed studies requires the control to be stable. Basin stability can be assessed in many ways, some of which are investigated for the South Fork of Caspar Creek in northern California. This basin is recovering from logging and…
Author(s): Robert B. Thomas
Keywords: PSW4351, Caspar Creek, watershed, sediment, logging effects, road building, storm flo
Source: Water Resources Research 26(9): 2079-2087.
Year: 1990
In 1961, the cooperative watershed management research program in the Lower Conifer Zone of California was started. Research in the Lower Conifer Zone was designed to obtain information and develop principles to give greater insight into the effect of land management in the Zone upon water quality…
Author(s): Robert R. Ziemer, Eugene Kojan, Robert B. Thomas, Robert A. Muller
Keywords: PSW4351, Caspar Creek, watershed, sedimentation, logging effects, road building, fish lif
Source: Pages 1-11, in: Fourth progress report, 1966, cooperative watershed management research, flood and sediment reduction in the lower conifer zone of California. Berkeley, California: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; 88 p.
Year: 1966
Abstract - Streamflow, suspended sediment, and bedload have been gauged continuously since 1962 in the 473-ha North Fork and the 424-ha South Fork of Caspar Creek on the Jackson Demonstration State Forest. From 1963 to 1967, both 90-year-old second-growth watersheds were measured in an ""untreated…
Author(s): Robert R. Ziemer, Jack Lewis, Elizabeth T. Keppeler
Keywords: Caspar Creek, logging effects, watershed, streamflow, suspended sediment, bedla
Source: In: LeBlanc, John, ed., Conference on Coast Redwood Forest Ecology and Management, 18-20 June 1996, Humboldt State University, Arcata, California; 131-133
Year: 1996