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Sunday, July 26, 2020 | History

2 edition of Natural regeneration of white and red fir ... influence of several factors found in the catalog.

Natural regeneration of white and red fir ... influence of several factors

Donald T. Gordon

Natural regeneration of white and red fir ... influence of several factors

by Donald T. Gordon

  • 148 Want to read
  • 4 Currently reading

Published by Pacific Southwest Forest and Range Experiment Station in Berkeley .
Written in English

    Places:
  • California.
    • Subjects:
    • Abies concolor.,
    • Abies magnifica.,
    • Fir -- California.,
    • Forest regeneration -- California.

    • Edition Notes

      StatementDonald T. Gordon.
      SeriesU.S.D.A. Forest Service research paper PSW ; 58, USDA Forest Service research paper PSW ;, 58.
      Classifications
      LC ClassificationsSD11 .A45628 no. 58, SD397.F5 .A45628 no. 58
      The Physical Object
      Pagination32 p. :
      Number of Pages32
      ID Numbers
      Open LibraryOL5738894M
      LC Control Number70608716

        In Eastern Canada, the impact of white-tailed deer on the density of balsam fir Abies balsamea seedlings, as well as several key understorey species (Cornus canadensis, Rubus spp. and Epilobium angustifolium), showed a non-linear response to density, declining exponentially with increasing deer density (Tremblay et al., , ). However Cited by:   Kittredge D, Kelty M, Ashton P () The use of tree shelters with Northern red oak natural regeneration in southern New England. NJAF – Google Scholar Kjelgren R, Rupp L () Establishment in tree shelters I. Shelters reduce Cited by: 1.

        In an examination in January , around 4 years after the accident, the tree morphology in the Japanese fir population naturally occurring in the forest was observed [].In each of the three experimental sites within the ex-evacuation zone and one control site that was quite distant, plots of – m 2 were established, and all young fir trees (height of 40 cm–5 m, around – Author: Yoshito Watanabe. The clinician draws a small volume of your blood at the time of treatment. The blood is placed in a specialized centrifuge that spins and automatically separates the red blood cells from the plasma. The plasma is then further centrifuged to concentrate the autologous platelets .

      California: A Fire Survey presents a blazing discussion on how fire has perplexed and bedeviled the Golden State. One of every nine Americans lives in California. Thanks to the arrival of industrial civilization, years of rapid growth, and a culture devoted to the hardcore pursuit of wealth and excess, the state’s ecosystems resemble the Cited by: 1. And new Douglas Fir trees and new Western White Pine trees would be planted, spaced far apart, with good light, and good browse protection from hungry deer, so that a new generation of trees would.


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Natural regeneration of white and red fir ... influence of several factors by Donald T. Gordon Download PDF EPUB FB2

Natural regeneration of white and red fir influence of several factors. Berkeley: Pacific Southwest Forest and Range Experiment Station, (OCoLC) Material Type: Government publication, National government publication, Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors: Donald T Gordon.

Ecosystems & Habitats Tree Dominated Wildlife Habitats Red Fir (RFR) Red Fir, White Fir, Lodgepole Pine Vegetation Structure-- Stand structure is typified by even-aged (established within year span) groups of trees that cover several to thousands of square meters.

Aerial assessment of red spruce & balsam fir condition in the Adirondack region of New York, the Green Mountains of Vermont, the White Mountains of New Hampshire, and the mountains of western Maine, / (Durham, N.H.: Forest Health Protection, U.S.

Dept. of Agriculture, Forest Service, [?]), by Margaret M. Miller-Weeks, United. An experiment was established in in northern British Columbia to investigate factors influencing natural regeneration rates of Engelmann spruce (Picea engelmannii Parry) and subalpine.

Site factors are more important than salvage logging for tree regeneration after wind disturbance in Central European forests Article in Forest Ecology and Management – November. Finally, negative factors of seedling mortality like the disturbance by red deer (Cervus elaphus L., Cervidae) and also the human impact, are affecting the unburned ‘islets’ more.

Conclusions This study addressed the masting and regeneration dynamics in conifers, using Abies cephalonica as a. TAXONOMY: The scientific name of grand fir is Abies grandis (Dougl.) Lindl.

(Pinaceae) [,].Grand fir hybridizes with white fir (A. concolor) [,45].A broad zone of intergraded grand × white fir populations occurs from northeastern Washington and Oregon south to northern California and east to west-central Idaho [].

Picea glauca, the white spruce, is a species of spruce native to the northern temperate and boreal forests in North America. Picea glauca was originally native from central Alaska all through the east, across southern/central Canada to the Avalon Peninsula in Newfoundland.

It now has become naturalized southward into the far northern United States border states like Montana, Minnesota Class: Pinopsida. Twenty years after spacing to × m, year-old mixed stands of balsam fir and white spruce in the Green River watershed, New Brunswick, averaged m 3 /ha.

A spacing study of 3 conifers (white spruce, red pine and jack pine) was established at Moodie, Manitoba, on flat, sandy, nutritionally poor soils with a fresh moisture regime.

Duncan, Donald P. A study of some of the factors affecting the natural regeneration of tamarack (Larix laricina) in Minnesota. Ecology.

35(4): [] Elliott, Deborah L. The current regenerative capacity of the northern Canadian trees, Keewatin. Markian Petruncio, Steve Andringa, in Forest Plans of North America, Abstract.

The pine and fir forests of the Yakama Reservation in south-central Washington State are managed using combinations of even-aged and uneven-aged silvicultural health is a major concern, and, therefore, silvicultural prescriptions are designed to restore forest conditions so that appropriate tree.

Thus, the impact of natural regeneration and mean maximum temperature decreased, while parameters such as air humidity, days above 8 °C, litter type, cover value of litter, herb, and moss gained a stronger influence. These factors explained the summer distribution of 67% of all by: What is Far Infrared therapy (FIR) and what does it do: Far Infrared Ray are waves of energy, totally invisible to the naked eye, which penetrate the surface of the skin where they gently and elevate the body's surface temperature to F/42C and above, whilst positively activating body systems and.

Occasionally, white spruce stands regenerate to red spruce, balsam fir, white ash, or sugar maple if a seed source is available. If desirable regeneration is present and the area is sufficient, divide the stand into two operating areas - Block 1 and Block 2 - and follow the previous suggestions for budworm damaged stands.

Northern white-cedar needs 11 years to reach a height of 30 cm, a value in the same range as balsam fir, white spruce, black spruce, and hemlock in northeastern North America (5 to 15 years) [31,32,33].

Height growth rate increases once northern white-cedar regeneration gets older and by: 6. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.

The human control of forest fires is another factor that could have contributed to a reduction in the abundance of species that typically regenerate after fires including hickories, oaks and white pine [7,8,9].Furthermore, in many regions of northeastern North America, the natural regeneration of several hardwood species and white pine is threatened by the overabundance of white-tailed deer Cited by: 1.

Balsam fir forests can also exhibit stability, with regeneration succeeding over-mature and dying fir. This forest type is continually renewing itself. Spruce budworm outbreaks are periodic, recurring at to year intervals, and are part of the natural cycle of events associated with the maturing of balsam fir.

Regeneration. Plan timber harvests to quickly encourage natural regeneration or to prepare sites for artificial regeneration.

Choose a harvest system (see Chapter 4) that is compatible with the tree species you want to regenerate (see Chapter 6). Rapidly growing young trees quickly conceal logging debris and enhance visual quality.

More than 95% of the total harvest consists of lodgepole pine; several species of spruce, hemlock, and true fir; Douglas fir; and western red cedar. Figure 4. B.C. is the source of a significant proportion of the world 's exported forest products. Several factors can limit regeneration potential, including lack of overstory seed sources, browse pressure from deer, or competition from invasive plants.

Disturbance regime – Woods may be in a better condition if they have experienced natural disturbances, or if management has been designed to mimic natural disturbances.

Progress 10/01/08 to 09/30/09 Outputs OUTPUTS: A series of Douglas-fir test sites were established this past year to test the idea of moving seed sources in response to climate change and evaluate options for adapting to climate change through assisted migration, using silvicultural and genetic options.

In the past years, the Pacific Northwest Research Station has established.The white fir appears to be best fitted for such an existence, and we find its seedling offspring surviving under the most shaded circumstances where other species are struggling or dead.

Early photographs of sequoia groves indicate that white fir was considerably less abundant than it is now.