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Equivalent roaded area as a measure of cumulative effect of logging

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Abstract

A watershed disturbance index developed by the USDA Forest Service called equivalent roaded area (ERA) was used to assess the cumulative effect from forest management in California's Sierra Nevada and Klamath mountain ranges. The basins' ERA index increased as logging and road-building occurred and then decreased over time as management ceased and vegetation recovered. A refinement of the standard index emphasized disturbances in sensitive, near-channel areas, and evaluated recovery periods of 20, 30, and 50 years. Shorter recovery periods yielded better correlations between recovering forest systems and aquatic response than the longer recovery period, as represented by ERA and diversity or dominance, respectively. The refined ERA index correlated more closely with macroinvertebrate dominance and diversity information that was available for part of the study period. A minimum ERA threshold of 5% was detected, below which no effect to the macroinvertebrate community was observed. Above this threshold, elevated ERA values were associated with a decline in macroinvertebrate diversity and an increase in dominance of the top five taxa. Use of an ERA technique that emphasizes near-channel areas and biological thresholds would contribute to the Forest Service's implementation of ecosystem management.

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Literature Cited

  • Bosch, J. M., and J. D. Hewlett. 1982. A review of catchment experiments to determine the effect of vegetation changes on water yield and evapotranspiration.Journal of Hydrology 55:3–23.

    Article  Google Scholar 

  • Dickert, T. G., and R. B. Olshansky. 1986. Evaluating, erosion susceptibility for land-use planning in coastal watersheds.Coastal Zone Management Journal 13(3):309–333.

    Article  Google Scholar 

  • Dickert, T. G., and A. E. Tuttle. 1985. Cumulative impact assessment in environmental planning; a coastal wetland watershed example.Environmental Impact Assessment Review 5:37–64.

    Article  Google Scholar 

  • Erman, D. C., and D. Mahoncy. 1983. Recovery after logging with and without bufferstrips in northern California. Contribution 186, California Water Resources Center. University of California, Davis, 50 pp.

    Google Scholar 

  • Erman, D. C., J. D. Newbold, and K. B. Roby. 1977. Evaluation of streamside bufferstrips in northern California. Contribution 165, California Water Resources Center. University of California, Davis, 48 pp.

    Google Scholar 

  • Fong, D. R. 1991. Long-term logging-related influences on stream habitat and macroinvertebrate communities in northern California. MS thesis. University of California, Berkeley, 157 pp.

    Google Scholar 

  • Geppert, R. R., C. W. Lorenz, and A. G. Larson. 1984. Cumulative effects of forest practices on the environment: a state of the knowledge. Washington Forest Practices Board, Olympia, Washington, 208 pp.

    Google Scholar 

  • Grant, G. 1988. The RAPID technique: A new method for evaluating downstream effects of forest practices on riparian zones. General Technical Report PNW-GTR-220. USDA Forest Service, Seattle, Washington, 36 pp.

    Google Scholar 

  • Harr, D. 1982. Higher peak flows associated with cumulative timber harvest in the transient snow zone of western Oregon. Technical Bulletin No. 388. National Council of the Paper Industry on Air and Stream Improvement, Corvallis, Oregon, 47 pp.

    Google Scholar 

  • Hartman, G. F., and J. C. Serivener. 1990. Impacts of forestry practices on a coastal stream ecosystem, Carnation Creek, British Columbia. Canadian Bulletin of Fisheries and Aquatic Sciences Publication 233. Ottawa Department of Fisheries and Oceans, Ottawa, Ontario, 37 pp.

    Google Scholar 

  • Haskins, D. M. 1987. A management model for evaluating cumulative watershed effects. Pages 125–130in R. Z. Callaham and J. J. DeVries (eds.), Proceedings of the California Watershed Management Conference, 18–20 November, 1986, Sacramento, California. Wildland Resources Center Report No. 11. University of California, Berkeley.

    Google Scholar 

  • Hinkley, D. V., 1971. Influence in two-phase regression.Journal of the American Statistical Association 66(236):736–742.

    Article  Google Scholar 

  • Johnston, C. A., N. E. Detenbeck, J. P. Bonde, and G. J. Niemi. 1988. Geographic information systems for cumulative impact assessment.Photogrammetry in Engineering and Remote Sensing 54(11):1609–1615.

    Google Scholar 

  • Klock, G. O. 1985. Modeling the cumulative effects of forest practices on downstream aquatic ecosystems.Journal of Soil & Water Conservation 40(2):237–241.

    Google Scholar 

  • Magurran, A. E. 1988. Ecological diversity and its measurement. Princeton University Press, Princeton, 179 pp.

    Google Scholar 

  • McCashion, J. D., and R. M. Rice. 1983. Erosion on logging roads in northwestern California: How much is avoidable?Journal of Forestry 81:23–26.

    Google Scholar 

  • Newbold, J. D., D. C. Erman, and K. B. Roby. 1980. Effects of logging on macroinvertebrates in streams with and without buffer strips.Canadian Journal of Fisheries and Aquatic Science 37:1076–1085.

    Article  Google Scholar 

  • NOAA, 1989. Climatological Data Annual Summary, California. National Oceanic and Atmospheric Administration, US Department of Commerce. ISSN 0145-0069, U93(13), Asheville, North Carolina, 56 pp.

  • O'Connor, M. D. 1986. Effects of logging on organic debris dams in first order streams in northern California. MS thesis. University of California, Berkeley, 90 pp.

    Google Scholar 

  • Plafkin, J. I., M. T. Barbour, K. D. Porter, S. K. Gross, and R. M. Hughes. 1989. Rapid bioassessment protocols for use in streams and rivers: benthic macroinvertebrates and fish. Report 444/4-89-001, Office of Water (WH-553), US Environmental Protection Agency, Washington, DC, 243 pp.

    Google Scholar 

  • Richards, C., and G. W. Minshall. 1992. Spatial and temporal trends in stream macroinvertebrate communities: The influence of catchment disturbance.Hydrobiologia 241:173–184.

    Google Scholar 

  • Roby, K. R., and D. L. Azuma. 1995. Changes in a reach of a northern California stream following wildfire.Environmental Management (in press).

  • Rosenberg, D. M., H. V. Danks, and D. M. Lehmkuul. 1986. Importance of insects in environmental impact assessment.Environmental Management 10(6):773–783.

    Article  Google Scholar 

  • Salo, E. O., and C. J. Cederholm. 1981. Cumulative effects of forest management on watersheds—some aquatic considerations. Pages 67–78in R. B. standiford and S. I. Ramacher (eds.), Cumulative effects of forest management on California watersheds: An assessment of status and need for information. Proceedings of the Edgebrook conference, 2–3 June, 1980, University of California, Berkeley.

  • Seidelman, P. J. 1981. Methodology for evaluating cumulative watershed impacts. Region 5 unpublished report, Regional Office, USDA Forest Service, San Francisco, 64 pp.

    Google Scholar 

  • Steel, R. G., and J. H. Torrie. 1960. Principles and procedures of statistics. McGraw-Hill, New York, 481 pp.

    Google Scholar 

  • Swanson, R. H., and G. R. Hillman. 1977. Predicted increased water yield after clear-cutting verified in west-central Alberta. Information Report NOR-X-198, Northern Forestry Research Centre, Fisheries and Environment Canada. Edmonton, Alberta, 40 pp.

    Google Scholar 

  • Swanson, F. J., S. V. Gregory, J. R. Sedell, and A. G. Campbell. 1982. Land-water interactions: The riparian zone. Pages 257–291in R. L. Edmonds (ed.), Analysis of coniferous forest ecosystems in the western U.S. Hutchinson Ross Publishing, Stroudsburg, Pennsylvania.

    Google Scholar 

  • USDA Forest Service. 1988. Cumulative off-site watershed effects analyses. Section 2509.22, Chapter 20, July 1988, Forest-Service Handbook. Region 5 Regional Office, USDA Forest Service, San Francisco.

    Google Scholar 

  • Weaver, W., D. Hagans, and M. A. Madej. 1987. Managing forest roads to control cumulative erosion and sedimentation effects. Pages 119–124in R. Z. Callaham and J. J. DeVries (eds.), Proceedings of the California Watershed Management Conference, 18–20 November, 1986, Sacramento, California. Wildland Resources Center Report No. 11, University of California, Berkeley.

    Google Scholar 

  • Ziemer, R. R. 1981. The role of vegetation in the stability of forested slopes. Pages 297–308in D. Mlinsek and K. Hatiya (eds.), Proceedings of the International Union of Forestry Research Organizations, XVII World Forest Congress, Kyoto.

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Authors and Affiliations

  1. Pacific Southwest Research Station, USDA Forest Service, PO Box 245, 94701, Berkeley, California, USA

    Bruce J. Mcgurk

  2. USDI National Park Service, Golden Gate NRA, Fort Mason, 94123, San Francisco, California, USA

    Darren R. Fong

Authors
  1. Bruce J. Mcgurk
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  2. Darren R. Fong
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Mcgurk, B.J., Fong, D.R. Equivalent roaded area as a measure of cumulative effect of logging. Environmental Management 19, 609–621 (1995). https://doi.org/10.1007/BF02471972

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