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  1. Estimating site index of ponderosa pine in Northern California...standard curves, soil series, stem analysis

    Four sets of standard site index curves based on statewide or regionwide averages were compared with data on natural growth from nine young stands of ponderosa pine in northern California. The curves tested were by Meyer; Dunning; Dunning and Reineke; and Arvanitis, Lindquist, and Palley. The effects of soils on height growth were also studied. Among the curves tested...

    Author(s):
    Robert F. Powers
    Year:
    1972
    Keywords:
    Pinus ponderosa, California, height increment, natural growth, site classification, site index curves
    Source:
    Res. Note PSW-RN-265. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p

  2. An Old-Growth Definition for Sand Pine Forests

    Sand pine scrub, Society of American Foresters cover type 69 (Eyre 1980), grows on deep, droughty, infertile sands of marine and aeolian origin. Water and wind formed these features as sea levels fluctuated during past glacial and interglacial periods (Kurz 1942, Laessle 1958, Brooks 1972). Because of washing and sorting during transport and deposition, soil parent...

    Author(s):
    Kenneth W. Outcalt
    Year:
    1997
    Keywords:
    Source:
    Gen. Tech. Rep. SRS-12. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 12 p.

  3. Local Soils Information Needed to Define the Root Zone in Process Models on the Gulf Coastal Plain

    We combined published information and our own experimental results from the Gulf Coastal Plain to evaluate how soil aeration and strength interact with loblolly pine root growth. Our results demonstrate that soil aeration and strength differ by soil series and year and are subject to vertical and horizontal spatial variation. Comparison of loblolly pine root phenology...

    Author(s):
    Mary Anne Sword Sayer; Allan E. Tiarks
    Year:
    2002
    Keywords:
    Soil aeration, soil strength, spatial variation, redox potential, root phenology, root zone sub-model
    Source:
    Gen. Tech. Rep. SRS-58. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 15 p.

  4. Factors influencing soil-surface bulk density on oak savanna rangeland in the southern Sierra Nevada foothills

    The objectives of this study were to compare soil-surface bulk density between rangeland pastures not grazed since 1935, 1975, and 1995 to grazed areas with a 15-year record of light (>1,000 lbs ac-1 RDM), moderate (600-800 lbs ac-1 RDM), and heavy (<400 lbs ac-1 RDM) grazing by beef cattle; and...

    Author(s):
    Dennis M. Dudley; Kenneth W. Tate; Neil K. McDougald; Melvin R. George
    Year:
    2002
    Keywords:
    Source:
    In: Standiford, Richard B., et al, tech. editor. Proceedings of the Fifth Symposium on Oak Woodlands: Oaks in California's Challenging Landscape. Gen. Tech. Rep. PSW-GTR-184, Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 131-138

  5. Effect of lime stabilized biosolids and inorganic fertilizer applications on a thinned longleaf stand - ten year results

    This project was initiated on the Sand Hills State Forest in Chesterfield County, SC in May 1995 to determine the benefits of inorganic fertilizer (NPK) and lime stabilized biosolids applications in a twice-thinned longleaf pine (Pinus palustris Mill.) stand planted in 1963 on an excessively well drained deep sand (Alpin soil series). Major...

    Author(s):
    E. David Dickens; Bryan C. McElvany; David J. Moorhead
    Year:
    2010
    Keywords:
    Source:
    In: Stanturf, John A., ed. 2010. Proceedings of the 14th biennial southern silvicultural research conference. Gen. Tech. Rep. SRS–121. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 223-228.

  6. Longleaf pine wood and straw yields from two old-field planted sites in Georgia

    Little is known or published concerning longleaf pine’s growth rate, or wood and pine straw yields on old-field sites. Two study areas were installed in unthinned longleaf plantations established on former old-fields in Screven and Tift Counties, Georgia to address pine growth and straw yields. Soil series were delineated and replicated plots with three levels of...

    Author(s):
    E. David Dickens; David J. Moorhead; Bryan C. McElvany; Ray Hicks
    Year:
    2012
    Keywords:
    Source:
    In: Butnor, John R., ed. 2012. Proceedings of the 16th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-156. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 93-97.
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