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Forests and Streamflow A Discussion of the Hoyt-Troxell Report

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The Hoyt-Troxell report is an attack upon the widely accepted belief that watershed vegetation must be kept intact for the most favorable influence upon stream flow and erosion and flood control, and, that the negative values of the vegetation, because of transpiration losses, are far outweighed by the beneficial effects. The Hoyt-Troxell report has had wide circulation; from several parts of the World we learn that it has mislead engineers as to the value of watershed cover for the region in which the study was conducted. The conflicting evidence of various recent contributions emphasizes the importance of correctly evaluating the factors involved and that a complete algebraic summation must be made of all plus and minus factors to furnish the correct basis for watershed protection measures. Dr. Lowdermilk's careful analysis of the authors' data and conclusions provokes and calls for further discussion of this report and of investigation of the subject in general by foresters and engineers.

Document Type: Journal Article

Affiliations: Senior Silviculturist, California Forest Experiment Station

Publication date: 1933-03-01

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

    Also published by SAF:
    Forest Science
    Other SAF Publications
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