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Stand Density Management Diagram for Ponderosa Pine

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Stand Density Management Diagram

This application depicts stand density management diagrams (SDMDs) of ponderosa pine as well as some other North American conifer stands via R's Shiny app. This application was designed to accomodate the standview package, written by M.W. Ritchie from US Forest Service. Detail for the standview package is available at: https://research.fs.usda.gov/psw/products/dataandtools/tools/standview and https://github.com/mwritchie.

Description

Users can draw different SDMDs by references. Also, users can customize their own SDMDs (i.e., User Defined option), through modifying maximum SDI, management zone, Reineke's term for self-thinning line, etc. Plot and table into can be downloaded to their computers from the Export Tab.

Built with

  • R/Rstudio/Shiny
  • standview package

Author

Acknowledgements

  • Bianca Eskelson, University of British Columbia
  • Martin Ritchie, US Forest Service
  • Jianwei Zhang, US Forest Service
  • Mark Kimsey, University of Idaho

References

Barrett, J.W. 1978. Height growth and site index curves for managed even-aged stands of ponderosa pine in the Pacific Northwest. Res. Pap. PNW-232. USDA For. Serv. Pac. Northwest For. and Range Exp. Stn. 14p.

Cochran, P.H. 1992. Stocking Levels and Underlying Assumptions for Uneven-Aged Ponderosa Pine Stands. Res. Note PNW-509. USDA For. Serv. Pac. Northwest For. and Range Exp. Stn. 10p.

Cochran, P.H., and Barrett, J.W. 1992. Stocking levels and underlying assumptions for uneven-aged ponderosa pine stands. Res. Note PNW-509. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 12p.

Drew, T.J. and Flewelling, J.W. 1979. Stand density management: an alternative approach and its application to Douglas-fir plantations. For. Sci. 25(3):518-532.

Edminster, C.B. 1988. Stand density and stocking in even-aged ponderosa pine stands. P. 253-260 in: Ponderosa pine: The species and its management, Baumgartner, D.M., and J.E. Lotan (eds.). Washington State University, Pullman, WA.

Gingrich, S. 1967. Measuring and evaluating stocking and stand density in upland hardwood forests in the central states. Forest Science. 13(1): 38-53.

Jang, W., Ritchie, M.W. and Zhang, J., 2021. Improved equations for the density management diagram isolines of ponderosa pine stands. Forest Science, 67(1): 93-102.

Kimsey Jr., M., Shaw, T.M., Coleman, M.D. 2019. Site sensitive maximum stand density index models for mixed conifer stands across the Inland Northwest, USA. Forest Ecology and Management. 433: 396-404.

Long, J.N., McCarter, J.B., Jack, S.B. 1988. A modified density management diagram for coastal Douglas-fir. Western Journal of Applied Forestry. 3(3): 88-89.

Long, J.N., Shaw, J.D. 2005. A density management diagram for even-aged ponderosa pine stands. Western Journal of Applied Forestry. 20(4): 205-215.

Long, J.N., Shaw, J.D. 2012. A density management diagram for even-aged Sierra Nevada mixed-conifer stands. Western Journal of Applied Forestry. 27(4): 187-195.

McCarter, J.D., Long, J.N. 1986. A lodgepole pine density management diagram. Western Journal of Applied Forestry. 1: 6-11.

Reineke, L.H. 1933. Perfecting a stand density index for even-aged forests. Journal of Agricultural Research. 46: 627-638.

Ritchie, M.W. and Berrill, J.-P. 2022. Precommercial thinning in California Forests. in: Stewart, W. (editor) Reforestation practices for conifers in California. Davis CA: University of California, Agriculture and Natural Resources.

Weiskittel, A. and Woodall, C. 2023. Stand density index and relative density calculator for the United States. figshare. Software. https://doi.org/10.6084/m9.figshare.24412246.v1.

Williams, R.A. 1994. Stand density management diagram for loblolly pine plantations in north Louisiana South. J. Appl. For. 18(1):40-45.

Zhang, J., Oliver, W.W., Ritchie, M.W. 2007. Effect of stand densities on stand dynamics in white fir (Abies concolor) forests in northeast California, USA. Forest Ecology and Management. 244: 50-59.

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