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Wednesday, May 13, 2020 | History

3 edition of Forty-year development of Douglas-fir stands planted at various spacings found in the catalog.

Forty-year development of Douglas-fir stands planted at various spacings

Donald L. Reukema

Forty-year development of Douglas-fir stands planted at various spacings

by Donald L. Reukema

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Published by Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture in Portland, Or .
Written in English

    Subjects:
  • Douglas fir -- Spacing

  • Edition Notes

    Other titlesForty year development of Douglas-fir stands planted at various spacings.
    Statementby Donald L. Reukema.
    SeriesResearch paper PNW -- 100., Research paper PNW -- 100.
    The Physical Object
    Pagination21 p. :
    Number of Pages21
    ID Numbers
    Open LibraryOL17616242M
    OCLC/WorldCa26846969

    Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia / View Metadata By: Reukema, Donald L. - Smith, J. Harry G. - Pacific Northwest Research Station (Portland, Or.). Reukema, D.L., and Smith, J.H.G. Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia. USDA For. Serv. Res. Pap. PNW Google ScholarCited by:

    Fifty-year development of Douglas-fir stands planted at various spacings / ([Portland, Or.]: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, ), by Donald L. Reukema, United States Forest Service, and Or.) Pacific Northwest Forest and Range Experiment Station (Portland (page images at HathiTrust). Newnham R. M. The development of a stand model for Douglas-fir Ph.D. Thesis, Faculty of Forestry, Univ. of British Columbia, Vancouver. Reukema Donald L. Forty-year development of Douglas-fir stands planted at various spacings. U.S. Forest Service Research Paper Portland, Ore: Pacific Northwest Forest and Range Experiment Station.

    Uses a mechanistic perspective to describe how forests grow and respond to intentional manipulations and natural disturbances. Synthesizes the latest information from physiology, ecology and silviculture and compares patterns in different regions. Emphasizes the constant change of all forests and shows that similar development patterns are occurring in forests in North American and beyond.5/5(1). Douglas-fir stands largely follow those developed for radiata pine (Beets et al. ). The data and modelling are briefly described here and in detail below. Firstly, breast height ( m) mean outerwood density was measured in stands sampled across a wide range of sites throughout New Zealand with climate and soil nitro-gen fertility by: 2.


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Forty-year development of Douglas-fir stands planted at various spacings by Donald L. Reukema Download PDF EPUB FB2

Forty-Year Development of Douglas-Fir Stands Planted at Various Spacings (Classic Reprint) [Donald L. Reukema] on *FREE* shipping on qualifying offers. Excerpt from Forty-Year Development of Douglas-Fir Stands Planted at Various Spacings During recent yearsCited by:   Fifty-Year_development_of_douglas-Fir_stands_planted_at_various_spacings [a, Donald] on *FREE* shipping on qualifying offers.

Fifty-Year_development_of_douglas-Fir_stands_planted_at_various_spacingsAuthor: Donald a. texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK Forty-year development of Douglas-fir stands planted at various spacings Item Preview Forty-year development of Douglas-fir stands planted at various spacings by Reukema, Donald L.

Publication date Topics Douglas fir Spacing Publisher. Reukema, Donald L. Forty-year development of Douglas-fir stands planted at various spacings. (In preparation for publication, Pacific Northwest Forest & Range Exp.

Sta., Portland, Oregon.) spacing, and an analysis was made of re p l a lata i i n o g nshi a p n s d an analysis was made of dim ionships between crown and stem 1. Stand Development The live stad. Several trends associated with spacing are evident in statistics for the year-old plantation (Table 1).

In trees inches d.b.h. and larger, basal area and. total-stem cubic volume decreased with wider spacing. On the other hand, in the stand inches d.b. Reukema DL. Forty-year development of Douglas-fir stands planted at various spacings.

In: USDA Forest Service Research Paper. PNW; p. Reukema DL. Fifty-year development of Douglas-fir stands planted at various spacings. In: USDA Forest Service Research Paper. PNW; p. Rich RL, Frelich LE, Reich : Daehyun Kim, Andrew C.

Millington, Charles W. Lafon. Reukema. (), Fifty-year development of Douglas-fir stands planted at various spacings. USDA Forest Service, Pacif. Northwest Forest and Range Exp. Sta. Cited by: 1. Precommercial thinning (PCT) increases individual tree size and shortens harvest rotation time by affecting the timing and intensity of competitive interactions between trees.

Short-term results from PCT and spacing trials often show that the trade-off for rapid individual tree growth at lower densities is a period of time where trees do not fully occupy the site, and stand yield lags behind.

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Guide to Reforestation in Oregon. College of Forestry, Oregon State University, Corvallis. 48p. This manual describes the rules for reforesting after harvest of small woodlands, gives guidance for the decisions the landowner must make, and gives step-by-step instructions for planting and taking care of.

Plant 2- to 3-foot-high containerized or ball-and-burlap wrapped trees in well-drained ground, avoiding areas where standing water accumulates or where layers of stone lie beneath the top soil.

For a grouping of two or more trees, or to plant a hedge row, allow a minimum spacing of 15 to 20 feet between the young Douglas firs. Place each tree. Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia by Reukema, Donald L; Smith, J.

Harry G; Pacific Northwest Research Station (Portland, Or.). Get this from a library. Forty-year development of Douglas-fir stands planted at various spacings. [Donald L Reukema; United States. Department of Agriculture.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)].

For a range of site qualities, stands planted at 3-m spacing: (1) maintained tree vigor (CR ≥ 50%) and stability (average height:dbh ratio age 25 years, and (3) allocated year growth equitably to development of tree size and stand yield, Cited by: Development over 25 years of Douglas- fir, western hemlock, and western redcedar planted at various spacings on a very- good site in British Columbia.

United States Forest Service Research Paper PNW- RE, Pacific Northwest Forest and Range Experiment Station, Portland, by: Reukema, D.L., and Smith, H.J. Development over 25 years of Douglas-fir, western hemlock, and western redcedar planted at various spacings on a very good site in British Columbia.

USDA For. Serv. Res. Pap. PNW-RP Google ScholarCited by: Pinus patula seedlings raised using routine nursery cultural techniques were planted in four spacings in a randomized block design and replicated three times. The spacings were: m2 ( stems ha-l), m2 ( stems ha-l), m2 ( stems ha-~), m2 ( stems ha- Cited by: Fifty-year development of Douglas-fir stands planted at various spacings.

Fifty-year development of Douglas-fir stands planted at various spacings [Internet]. of models the book provides a. Fifty-year development of Douglas-fir stands planted at various spacings.

Portland, Or.: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, Establishing and managing timber stands Again, while you can devise your own management plan, it is recommended that you seek the assistance of a professional forester in developing one.

Generally, management practices fall into three categories depending on the age and condition of the forest: 1) forest establishment or regeneration; 2. Drybelt Douglas-fir is a moderately shade-tolerant species that grows in multi-aged stands on dry sites in the southern Interior of British Columbia.

These stands may include aspen and scattered or patchy lodgepole pine as well as the Douglas-fir in distinct or mixed layers. Stand structure between and within stands often varies greatly.Douglas Fir stands unsurpassed for heavy structural timbers.

It is one of the strongest woods per pound of weight in the softwood field. Where strength is the primary factor, Douglas Fir meets all requirements, and its straightness, ease of fabrication and availability File Size: 1MB.Donald L. Reukema has written: 'Fifty-year development of Douglas-fir stands planted at various spacings' -- subject(s): Douglas fir Asked in Authors, Poets, and Playwrights What has the author.