Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub

    Description

    The effect of early and delayed release treatments (designated as "Treat first 3 years" and "Treat second 3 years," respectively) on diameter, height, and foliar cover of ponderosa pine seedlings, and density, foliar cover, and height of competing vegetation was evaluated in a young northern California plantation. Manual grubbing created vegetation recovery times (the period of time from the last release treatment until the end of the study) that lasted 4 to 10 years. Duration and timing of the grubbing operations constituted the treatments. Development of species other than the planted pines was evaluated directly for density, cover, and height, and indirectly for effect on pine survival and growth. By 1995 greenleaf manzanita had higher values for density, cover, and height in the treatments allowing the longest recovery times. Survival of the ponderosa pines over all treatments after 1 growing season was 99 percent and after 10 seasons was 96 percent. Both release treatments resulted in greater conifer diameter, height, and foliar cover than in the control at the end of the study. Conifer values between the two release treatments did not differ significantly at the end of the study.

    Publication Notes

    • You may send email to psw_communications@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Fiddler, Gary O.; McDonald, Philip M. 1999. Treatment duration and time since disturbance affect vegetation development in a young ponderosa pine plantation. Res. Note PSW-RN-424. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 8 p

    Cited

    Google Scholar

    Keywords

    competing vegetation, northern California, ponderosa pine seedlings, release treatments, timing of release

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/2865