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1 edition of Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds found in the catalog.

Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds

Al Levno

Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds

by Al Levno

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Published in Portland, Or .
Written in English


Edition Notes

Issued Oct. 1967.

SeriesU.S. Forest Service. Pacific Northwest Forest Experiment Station. U.S. Forest Service research note PNW-65
The Physical Object
Pagination12 p.
Number of Pages12
ID Numbers
Open LibraryOL25587924M

"Old-growth is not just big old trees and big logs, but young trees as well. There is constant replacement going on, it is a dynamic forest, not stable or stagnant." Lertzman spent six years studying high-elevation old-growth forests of hemlock, and of Pacific fir and yellow cedar in . PRESERVING OLD-GROWTH FOREST ECOSYSTEMS 33 in height. These large trees, whether dead or alive, or standing or downed, serve unique ecological functions and provide habitat for a wide range of species. Large Douglas fir with broken tops provide nest and perch sites for spotted owls.

On its southwest margin, old growth red cedar stumps and some living trees with spring board holes and undercuts attest to the sudden halt in logging. The only indication of recent disturbance is a strip of wind-thrown forest through the centre which is now thickly vegetated with red cedar and Western hemlock saplings about ten years old. Full text of "Ecological_Characteristics_of_Old-Growth_Douglas-Fir_Forests" See other formats.

Integrating climate-smart principles into riparian and upland forest management can facilitate effective and efficient land use and conservation planning. Emerging values of forested headwater streams can help forge these links, yet climate effects on headwaters are little studied. We assessed associations of headwater discontinuous streams with climate metrics, watershed size, and forest Cited by: 1. Thomas and others () pointed out the importance of old-growth ponderosa pine, Douglas-fir, and spruce-hemlock forests for cavity nesting birds. Pine marten are closely tied to old-growth forests, although fire and good timber harvest practices can maintain the diver- sity beneficial to pine marten and other wildlife (Koehler and others ).


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Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds by Al Levno Download PDF EPUB FB2

INCREASES IN,MAXIMUM STREAM TEMPERATURES After Logging in Old-Growt Water temperature, is strongly infTueriC4 channe4. To determirfe the old-ewilth Douglas-fir foiest.S: mometere were installed mental Forest dear Blue Ri through Doutglas-Fir Watersheds ores ti y Research Technician A cher, Project Leader-Ant factors of water quality.

Get this from a library. Increases in maximum stream temperatures after logging in old-growth Douglas-Fir watersheds. [Al Levno; Jack Rothacher; Pacific Northwest Forest. Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds. Res. Note PNW Portland, OR: U.S.

Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 12 p. Title. Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds.

Portland (OR): USDA Forest Service, Pacific Northwest Forest and Range Experiment Station. Research. Logging-Related Increases in Stream Density in a Northern California Watershed 35 reservoirs in old- growth areas, with most runoff carried through a network of interconnected subsurface pipes.

The incised channels or gullied swales within the old-growth areas are discontinuous, inactive, and located much farther downstreamAuthor: Matthew S.

Buffleben. Washington, DC: The National Academies Press. doi: / Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds.

Res. Note PNW logging old-growth forests. Few studies have examined the effects of logging second-growth forests on stream habitat and fish, and this is particularly the case for headwater streams in the Pacific Northwest. Streams flowing through second-growth stands may respond more dramatically to.

Clear-cut logging of 41% of the basin resulted in increased stream temperatures in all months. Increases above prelogging temperatures ranged from °C in December to °C in August.

Increases in maximum stream temperatures after logging in old-growth douglas fir watersheds. USDA Forest Service Research Note PNW 12 p. Pacific Northwest Forest and Range Experiment Station. Levno, A., and J.

Rothacher. Increases in maximum stream temperatures after slash burning in a small experimental watershed. are presented for old-growth western hemlock and Douglas-fir. Sapwood and heart-wood functions were analyzed separately as were trees with and without heartrot.

Keywords: Wood density, moisture content (wood), old-growth stands, Douglas-fir, western hemlock. Summary Because of the critical weight limitations of many aerial logging systems, an ac.

Increases in maximum stream temperatures after logging in old-growth Douglas-fir watersheds / by A. Levno and Jack Rothacher. Portland, Or.: Pacific Northwest Forest and Range Experiment Station, old-growth wood with little or no lumber value, and waste wood remaining on the ground.

in cull material after a logging operation amounting to around 19 cords per acre in some instances. An even larger amount of wood waste is the old-growth Douglas-fir with varying degrees of white pocket. Old-growth Douglas-fir-western hemlock forests are the primary ex-ample of old-growth ecosystems in western Oregon and Washington.

(Scientific names of trees are listed on page ) These forests, generally to years old, are the most common type of old-growth forest, particularly on western slopes of the Cascade Range. They are, in fact. Colors demonic and divine: shades of meaning in the Middle Ages and after / Herman Pleij ; translated by Diane Webb.

New York: Columbia University Press, c BJS5 G54 Unspoken: a rhetoric of silence / Cheryl Glenn. Carbondale: Southern. Water yield increases after forest harvest vary according to several factors: â Climate. The largest absolute water yield increases have occurred after cutting of forests in climates with relatively abundant precipitation (1, to 2, mm per year) and relatively low evapotranspiration.

Sulfate pulping of logging and sawmill wastes of old-growth Douglas-fir and of certain associated speciesAuthor: J. Stanley Martin.

Preserving Old Growth Douglas Fir in the Fraser Valley Local folks had put up a good fight, but after the King and Farris Logging Company was finished, all that remained of this natural wonder were the giant stumps. InTweedsmuir Provincial Park, BC’s biggest provincial park, was designated as a result of the relentless work of a.

Large areas of the zone, however, are dominated "by second growth and some old-growth Douglas-fir forests. Much of the subregion has been logged, or logged and burned, during the past years.

Major forest species are Douglas-fir, western hemlock, western redcedar, grand fir, Sitka spruce (near the ocean), and western white pine.

Sixty years ago Douglas-fir made up ~ 20% of a diverse forest landscape that included hemlock, cedar, alder and spruce, stands. Douglas-fir is now frequently the dominant species in these same forests (Shaw ).

Oregon forests closer to the coast tend to have the highest incidence of SNC due to moist climate conditions and mild winter.

old-growth Douglas-fir forests in relation to distance from the edge of adjacent clearcuts; and through non-linear regression, we characterized the relationships be-tween these variables and the depth-of-edge influence. The results provide forest managers a starting point in assessing the potential impacts of edges on some bio-logical phenomena.

Soon after, a tree crashed against the dead top of a smaller one, sending an errant wood chunk sailing perilously close to an activist's head. Show / Hide Text "There was a lot of bravado early on, but after a while, the loggers questioned what they were doing and stopped," recalled the forest activist who goes by the name "Farmer," and whose.Promoting old-growth characteristics and long-term wood production in Douglas-fir forests Each of these ecological measures typically increases during long-term stand development The structure of natural young, mature and old-growth Douglas-fir forests in Oregon and Washington.

In: Ruggiero, L.F., Aubry, K.B., Carey, A.B., Huff, M.H Cited by: Large areas of the zone, however, are dominated by second growth and some old growth Douglas fir forests. Much of the subregion has been logged or logged and burned during the past years.

Douglas fir regeneration is frequently favored over western hemlock on mineral soil, particularly in the hotter, drier areas of the zone.