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Tuesday, July 21, 2020 | History

2 edition of Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine found in the catalog.

Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine

Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine

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  • 20 Currently reading

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

    Subjects:
  • Prescribed burning,
  • Nitrogen -- Fixation,
  • Ponderosa pine

  • Edition Notes

    StatementJ.D. Landsberg ... [et al.]
    SeriesResearch note PNW -- 412
    ContributionsLandsberg, Johanna D., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    The Physical Object
    Pagination15 p. :
    Number of Pages15
    ID Numbers
    Open LibraryOL14231845M

    Decades of fire suppression following extensive timber harvesting have left much of the forest in the intermountain western United States exceedingly dense, and forest restoration techniques (i.e., thinning and prescribed fire) are increasingly being used in an attempt to mitigate the effects of severe wildfire, to enhance tree growth and regeneration, and to stimulate soil nutrient cycling. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine / View Metadata By: Landsberg, Johanna D. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.).

    Reduction of crown fire hazard in Pinus ponderosa forests in the Black Hills, SD, often focuses on the removal of overstorey trees to reduce crown bulk density. Dense ponderosa pine regeneration establishes several years after treatment and eventually increases crown fire risk if allowed to grow. Using prescribed fire to control this regeneration is hampered by the limited knowledge of. Landsberg JD, Cochran PH, Finck MM, Martin RE () Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine. USDA Forest Service, Pacific Northwest Research Station, Research Note PNW (Portland, OR).

    LONG-TERJ\4 EFFECTS OF PRESCRIBED FIRE ON NITROGEN AVAILABILITY IN PONDEROSA PINE STANDS IN CENTRAL OREGON I. INTRODUCTION Historically, ponderosa pine (Pinus ponderosa) forests had a regime of frequent, low intensity ground fires (Kilgore, ) which kept the stands open and park-like, free of litter, woody debris and underbrush (Languille et. Decades of fire suppression have left much of the forest in the intermountain western United States exceedingly dense, and forest restoration techniques – including thinning and prescribed fire – are increasingly being used in an attempt to mitigate the potentially disastrous effects of severe wildfire, to enhance tree growth and regeneration, and to stimulate soil nutrient cycling.


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Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine Download PDF EPUB FB2

Get this from a library. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine. [Johanna D Landsberg; Pacific Northwest Forest and Range Experiment Station (Portland, Or.);].

Foliar nitrogen (N) concentration was not affected by the prescribed fires; however, total foliar N content was reduced immediately after burning, and it remained depressed four growing seasons later after the burned areas had recovered from crown scorch. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine / Related Titles.

Series: Research note PNW ; By. Landsberg, Johanna D. Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Type. Book Material. Published material. Publication info. An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker.

Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine Pages: Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine / By Johanna D.

Landsberg and Or.) Pacific Northwest Forest and Range Experiment Station (Portland. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine.

USDA-FS Pacific Northwest For. and Range Exp. Sta. Res. Note PNW 15 p. Google Scholar. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine. USDA Forest Service Research Note PNW, 15 pp. McKey, D. The distribution of secondary compounds within plants, pp. 55–, in G.

Rosenthal and D. Janzen (eds.). The effects of low-intensity prescribed underburning on the rates of litter decomposition and N and P release in ponderosa pine (Pinus ponderosa Dougl.

Laws) stands were studied by a litter-bag technique for 18 months in sites burned5, or 12 years decomposition rates (k) were low, between and year −1, and were significantly (P prescribed. Old ponderosa pines are often more susceptible to mortality after fire than younger, mature trees.

For example, a “U-shaped” relationship between post-fire mortality and diameter at breast height was reported for ponderosa pine in both southern Oregon and northern Arizona (McHugh and Kolb, ).In Arizona, mortality 3 years after fire was highest for trees with the smallest diameter.

In our study of two sites in northern Arizona, we assessed the effect of fire on radial growth of ponderosa pine trees. The sites have similar climates, soils and habitat types, but differed in. of ponderosa pine foliar N and P concentration, needle length and mass, and total N and P content needle À1.

F-statistics for treatment differences for all parameters are given, with. Sutherland et al. (), also working in northern Arizona, reported an initial decrease in ponderosa pine tree growth for 2 years after a prescribed burn. Growth then returned to rates similar to that of trees in unburned areas.

Although we did not determine yearly changes, we can report on the net change in growth 10 seasons postfire. Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine by Landsberg, Johanna D; Pacific Northwest Forest and Range Experiment Station (Portland, Or.).

Fire plays a critical role in terrestrial ecosystems across the globe, shaping ecosystem composition, structure, and function [1,2,3,4].In western North America, fire exclusion has fundamentally altered the structure and function of fire adapted forests, particularly forest types such as ponderosa pine and dry mixed conifer forests historically characterized by frequent low and mixed severity.

Soil mineral nitrogen changes following prescribed burning in ponderosa pine. For. Ecol. Manage., In a ponderosa pine (Pinus ponderosa Laws.) forest near Flagstaff, AZ, USA, there was a striking pattern in forest characteristics, consisting of substands of old-growth trees.

FIRE ECOLOGY OR ADAPTATIONS: Mature western white pine, with its moderately thick bark ( inches [3 cm]), moderately flammable foliage, height, and evanescent lower limbs, is rated moderate in fire resistance [5,11,56].However, dense stands, lichen growth, and resinous bark can decrease western white pine's resistance to fire [].Young trees with their thin bark are very susceptible to.

nutrients from the site, especially nitrogen (N). Following a prescribed fire on a Pacific ponderosa pine site in Oregon, all periodic annual growth increments were reduced in surviving trees four growing seasons later.

Foliar N concentration was not affected by the fire; however, total foliar N content was reduced immediately after burning. Foliar nitrogen content was highest in the southwestern quadrants of aggregates that received understory release treatments, and lowest in the northwestern quadrants of aggregates.

Our results suggest spatial relationships are important determinants of residual-tree responses to aggregated retention harvests. Progress 06/15/99 to 07/01/04 Outputs In the interior northwest, fire exclusion since the early 's have enhanced the growth of Douglas-fir in the understory of old growth ponderosa pine and western larch stands.

The strong competition with the Douglas-fir understory decreases resource availability for old growth trees. We examined the effectiveness of several restoration treatments to. We examined the effects of repeated growing season prescribed fire on the structure and composition of mixed pine–hardwood forests in the southeastern Piedmont region, Georgia, USA.

Plots were burned two to four times over an eight-year period with low intensity surface fires during one of four six-week long periods from early April to mid-September. Density of saplings (– cm.

Jessica R. Miesel, Differential responses of Pinus ponderosa and Abies concolor foliar characteristics and diameter growth to thinning and prescribed fire treatments, Forest Ecology and Management, /,(), ().(University of California, Centers for Water and Wildland Resources, Davis, CA, USA) Landsberg JD, Cochran PH, Finck MM, Martin RE () Foliar nitrogen content and tree growth after prescribed fire in ponderosa pine.

USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, Research Note PNW-RNManagers increasingly use prescribed fire in oak forests to decrease fire-sensitive species, increase understory light, and improve oak (Quercus spp.) better understand woody seedling response to burning, single and repeated (3×) prescribed fires were implemented over 6 years (–) in eastern Kentucky, and leaf traits of red (Erythrobalanus spp.) and white oaks.