1 edition of Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine found in the catalog.
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The increased snow accumulation in SE treatments is attributed to reduced interception. In the SG treatment, losses due to wind scour and evaporation offset gains due to reduced interception. These results demonstrate that thinning can have substantially different effects on snow accumulation depending on the spatial arrangement of the treatments. Snow Accumulation and Snowmelt in Thinned and Unthinned Lodgepole Pine Stands, West Central Montana Chairperson: Scott Woods Alternative thinning treatments can be used to restore the health of forested watersheds and reduce the risks associated with wildfires, but the hydrologie effects of these treatments are largely unknown.
Thinning Your Woodlot - The Advantages of Healthy Trees Woodlot Thinning to Achieve Landowner’s Goals By Peter Smallidge Private forest landowners love their forests and woodlands and often have a long-term vision for their property. Sometimes the love for the forest seems incompatible with cutting trees or logging, a much-maligned Size: 1MB. All lodgepole pine (Pinus contorta Dougl. ex Loud.), half of the canopy Englemann spruce (Picea engelmannii Parry ex Englem.), but less than 10% of the canopy subalpine fir (Abies lasiocarpa (Hook.) Nutt.) dated from the first 50 years of stand development.
Fire managers are aware that precommercial thinning increases the fire hazard of a given area, and that resistance-to-control, rate-of-spread (ROS), fire intensity, and ignition potential may also be affected (Appleby , Dell , Dell & Franks , Fahnestock ). Thinning slash is additional debris superimposed upon the naturally-fallen fuel that already exists in a. A 21 kg bear slides, from rest, 14 m down a lodgepole pine tree, moving with a speed of m/s just before hitting the ground. (a) What change occurs in the gravitational potential energy of the bear-Earth system during the slide? (b) What is the kinetic energy of the bear just before hitting the ground? (c) What is the average frictional force that acts on the bear?
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Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine Item Preview remove-circle Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine by Gary, H.L; Watkins, R.K.
Publication date Topics watershed management, Pinus contorta, snow Collection usda-usfsintermountainregion Pages: 8. Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine.
[Fort Collins, Colo.]: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, (OCoLC) The increase is also similar to that reported from a very dense lodgepole pine stand in Wyoming, where the mean SWE increased by cm (30%) after thinning (Gary and Watkins, ).
In both of these studies the increase in SWE was attributed primarily to reduced interception, and a similar conclusion is appropriate for the present by: Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine / By Howard L.
Gary, Ross K. Watkins and Colo.) Rocky Mountain. Maximum snow accumulation, measured as SWE, increased by 16% following 40% basal area removal in lodgepole pine stands in Montana (Woods et. firstly-thinned lodgepole pine stands a few years after thinning.
Furthermore, the objective was to investigate the relationship between stand stability and different stand parameters. Additionally, lodgepole pine stem quality was estimated. The study is mainly based on the data collected during an inventory project carried out at SCA in Highlights Snow damage following fire is a self-thinning agent in dense pine stands.
Thinning and fertilization place valuable dominant trees at risk of snow damage. Crown shape and asymmetry were only important predictors after thinning and fertilization. Models predicted smaller trees were more susceptible to damage in the unthinned stands.
Thinning and fertilization promoted Cited by: This study was designed to test the hypotheses that large‐scale precommercial thinning, at ages 17–27 yr, to various stand densities would, over the 10‐yr period since treatment, enhance: (1) productivity of lodgepole pine (Pinus contorta) crop trees, (2) stand structure attributes, and (3) species richness and diversity of forest floor Cited by: Figure 3 —Plots for sampling lodgepole pine needle litter in the thinned stand before adding needles (left) and in the control stand after adding needles (right).
even layer (Cited by: 6. Lodgepole Pine Thinning Experiments in the British Columbia Interior. Ministry of Forests Forest Science Program A Summary of Early Results from Recent 41 Stand basal area development following thinning of lodgepole pine. 22 42 Stand total volume development following thinning of lodgepole.
Forests in snow-dominated areas have substantial effects on the snowpack and its evolution over time. Such interactions have significant consequences for the hydrological response of mountain rivers. Thus, the impact of forest management actions on the snow distribution, and hence the storage of water in the form of snow during winter and spring, is a major by: 2.
The two that increase snowpack are redistribution and decreased loss to interception. Snow evaporation from a clearing counteracts snowpack increases.
Research has indicated that as vegetation density increases, so too does the loss to interception. Thinning of mature lodgepole pine stands increases scolytid bark beetle abundance and diversity Trevor D.
Hindmarch and Mary L. Reid Abstract: Thinning of forests has been used as a management tool for bark beetles; however, its effects have only been studied in a limited number of bark beetle species, and the causes of its effectiveness remain. Snow accumulation and melt under various stand densities in lodgepole pine in Wyoming and Colorado Item Preview Snow accumulation and melt under various stand densities in lodgepole pine in Wyoming and Colorado by Gary, H.L; Troendle, C.A.
Publication date TopicsPages: RM-RN Snowpack accumulation before and after thinning a dog-hair stand of lodgepole pine. RM-RN Temperature gradient weakening in snow.
RM-RN Vigor of ponderosa pine trees surviving mountain pine beetle attack. RM-RN Distribution of fungal genera in stockpiled topsoil and coal mine spoil overburden.
Diameter growth response was measured in a mixed stand of lodgepole pine (Pinus contorta) and interior Douglas fir (Pseudotsuga menziesii subsp. glauca) in British Columbia, after 76% of the pine had been killed by an outbreak of the scolytid Dendroctonus ponderosae.
Nearly all Douglas fir and a large proportion of the lodgepole pine responded to scolytid-induced thinning with a diameter growth Cited by: Cover PhotoMountain pine beetles ha:ve killed many trees in this lodgepole pine stand on the Targhee National Forest in southeast Idaho.
Red trees that ha:ve retained most of their needles were killed in July or August of the preceding year. Gray trees and those with few red needles were killed during previous years.
several years after thinnings were completed but were infesting only a few of the residual trees. The altered microclimate of the stands is suspected of being the factor most likely affecting beetle behavior. Thinning lodgepole pine stands increased light intensity, wind movement, insolation, and temperature.
The effect of commercial thinning on the growth and yield of lodgepole pine. In Proceedings of a commercial thinning workshop. FERIC, Vancouver, B.C., Special Report SR pp. Availability: To obtain copies of journal articles, conference proceedings and books please check with your local library.
Back to Research Branch Staff. Safranyik L, Carroll AL () The biology and epidemiology of the mountain pine beetle in lodgepole pine forests, pp 3– In: Safranyik L, Wilson B (eds) The mountain pine beetle: a synthesis of its biology, management and impacts on lodgepole by:.
Gary HL, Watkins RK () Snowpack accumulation before and after thinning a dog-hair stand of Lodgepole pine. U.S. Department of Agriculture Forest Service Resources Note RM, Rocky Mountain Forest and Range Experimental Station, Fort Collins, CO Google ScholarCited by: Snowpack accumulation before and after thinning a dog-hair stand of Lodgepole pine.
U.S. Department of Agriculture Forest Service Resources Note RM, Rocky Mountain Forest and Range Experimental Station, fort Collins, Colorado, 4pp.The subsequent data records were made before and after thinning, in and inin 25 circular plots of m 2 (dendrometric plots DP) in the treated area (total surf m 2) and in five DPs in the control area (total surface m 2).
Plots were randomly selected, at a >30 m distance from the edge of the treated and control by: 1.