Index Catalog // ScholarsArchive@OSU

Litter decay processes and soil nitrogen availability in native and cheatgrass-dominated arid rangelands

Creator:: Harrison, Kristen S.
Abstract:: As large-scale restorations of degraded rangelands are initiated, land managers need to understand how decades of dominance by the invasive annual grass, cheatgrass (Bromus tectorum L.), have altered ecosystem processes. One way to assess such alterations is by observing differences in decay rates, since decomposition is determined by factors such...
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Botany and Plant Pathology presented on April 10, 2003. Title: Litter Decay

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Creator:: Colby, Samantha E.
Abstract:: Soil food webs process the majority of terrestrial carbon, and influence overall ecosystem function. A primary distinction among soil food webs is based on fungal versus bacterial pathways of decomposition; these lead to fundamentally different soil function, and are expected to differ in dominance between meadows and forests. This assumption...
Resource Type:: Masters Thesis
Full Text:: Plant Pathology presented on November 20, 2014. Title: Seasonality as a driving factor of

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

Creator:: Reimer, Jessica N.
Abstract:: Dislodged macroalgae and seagrasses, also known as marine wrack, frequently wash into coastal ecosystems from the ocean and are potentially important ecological resources for biological communities. These!nutrient and organic matter subsidies may be especially important on sandy beaches, where little in situ primary productivity exists for higher trophic levels. To...
Resource Type:: Masters Thesis

Rate of decay in dead and down material

Creator:: Philbrick, J. R.
Resource Type:: Undergraduate Thesis
Full Text:: litter, and general observations have been taken whieh tend to throw light upon the length of time

Energy flow as determined by rates of litter decomposition

Creator:: Gilmour, C. M., Lingg, A. J., Youngberg, C. T., Platt, R. L., Beck, S. M., and U.S. International Biological Program. Coniferous Forest Biome
Resource Type:: Research Paper
Full Text:: OF LITTER DECOMPOSITION C. M. Gilmour, A. J. Lingg, C. T..Youngberg, R. L, Platt and S. M. Beck

Levels of asymbiotic nitrogen fixation in leaf litter in Northwest forests

Creator:: Heath, Brian E.
Abstract:: Asymbiotic N fixation in leaf litter in the Northwest was assayed by acetylene reduction. Annual N input measured by periodic sampling in a young Willamette Valley Douglas-fir plantation at Adair, Oregon was 1.08 +_.13 kg/ha. Using different calculating methods, six other annual estimates at the Adair site ranged from 0...
Resource Type:: Masters Thesis

A chronosequence of wood decomposition in the boreal forests of Russia

Creator:: Yatskov, Mikhail A.
Abstract:: Coarse woody debris (CWD) decomposition in the Russian boreal forests of the southern taiga zone was studied at four sites located near St. Petersburg in Northwestern Russia, Krasnoyarsk in Eastern Siberia, lrkutsk in the Baikal region, and Khabarovsk in the Russian Far East. This study was part of a broader...
Resource Type:: Masters Thesis
Full Text:: include increased net CO2 uptake and inhibited plant respiration in response to the increases in

Biomass dynamics of dead Douglas-fir and western hemlock boles in mid-elevation forests of the Cascade Range

Creator:: Graham, Robin Lee Lambert
Abstract:: The rate and manner of bioniass loss from decomposing Douglas-fir and western hemlock boles in mid-elevation forests of the central Cascade Range were measured. Bole bark and wood were considered separately. Loss of bole wood due to respiration was measured by change in bole wood density. Loss of bole wood...
Resource Type:: Dissertation

Leaf litter chemistry and decomposition in a Pacific Northwest Coniferous forest ecosystem

Creator:: Valachovic, Yana S.
Abstract:: The effects of initial leaf litter chemistry of 16 common coniferous and deciduous hardwoods and shrubs on their annual decomposition patterns were studied on the H.J. Andrews Experimental Forest (Oregon). Leaf litters were characterized by their chemical qualities, which included measurement of elemental fractions (C, N, P, K, Ca, Mg),...
Resource Type:: Masters Thesis

Decomposition and nitrogen dynamics of red alder and Douglas-fir leaf litter in Oregon Coast Range riparian forests

Creator:: Matkins, Joselin
Abstract:: I examined factors regulating decomposition rates of red alder (Alnus rubra)) and Douglas-fir (Pseudotsuga menziesii) leaf litter in Coast Range riparian areas in western Oregon. Overall, this study was designed to examine the influence that leaf litter quality characteristics and decomposition site treatment have on decomposition rates, to provide a...
Resource Type:: Masters Thesis
Full Text:: . McClaugherty. 2003. Plant litter: Decomposition, humus formation, and carbon sequestration. Berlin, Germany

ScholarsArchive@OSU

Litter decay processes and soil nitrogen availability in native and cheatgrass-dominated arid rangelands

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

Rate of decay in dead and down material

Energy flow as determined by rates of litter decomposition

Levels of asymbiotic nitrogen fixation in leaf litter in Northwest forests

A chronosequence of wood decomposition in the boreal forests of Russia

Biomass dynamics of dead Douglas-fir and western hemlock boles in mid-elevation forests of the Cascade Range

Leaf litter chemistry and decomposition in a Pacific Northwest Coniferous forest ecosystem

Decomposition and nitrogen dynamics of red alder and Douglas-fir leaf litter in Oregon Coast Range riparian forests

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