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Low molecular weight organic acids in forest soils

Creator:: Hayden, John
Abstract:: Two studies concerning low molecular weight organic acids in soils were conducted. In the first study, anion exclusion chromatography was used to separate and identify 12 common organic acids, and the accuracy, precision and detection limits of the method were determined. The method was found to be sensitive and accurate...
Resource Type:: Masters Thesis
Full Text:: Acids in Forest Soils. Abstract approved: John E. Baham Two studies concerning low molecular

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Creator:: Ciotti, Damion C.
Abstract:: Runoff from agricultural lands into Upper Klamath Basin rivers and lakes can cause water quality problems affecting fish and wildlife. Excessive eutrophication in Upper Klamath Lake is linked to high nutrient input (particularly phosphorus) stemming from both lake sediments and watershed tributaries. On a unit area load basis the Wood...
Resource Type:: Masters Thesis
Full Text:: Runoff from Flood Irrigated Pasture in the Klamath Basin, Orecion. Abstract approved: John E. Baham

Adsorption of Cu(II) and Cd(II) by Na-montmorillonite at low surface coverage in the presence and absence of water soluble complexing organic ligands

Creator:: Inskeep, William Parks
Abstract:: The formation of solution and solid complexes with heavy metals will partially determine their mobility and plant availability in soil systems. Experiments were initiated to determine the effect of pH, adsorbent and initial metal concentrations, and the presence of water soluble ligands on the adsorption of Cd and Cu by...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy John Baham The formation of solution and solid complexes with heavy metals will

Association of hydrophobic organic compounds with dissolved soil organic carbon

Creator:: Ochs, Michael
Abstract:: Volatile hydrophobic compounds (HOCs) brought into soil and sediment systems represent a serious threat to the environment. Dissolved organic carbon (DOC) may exert an important influence over the total aqueous solubility and mobility of organic pollutants through their incorporation into micelles or the formation of soluble complexes. To date, however,...
Resource Type:: Masters Thesis
Full Text:: Dissolved Soil Organic Carbon. Redacted for Privacy Abstract approved: John Baham Volatile hydrophobic

Surface complexation of protons and sulfate by kaolinite

Creator:: Wildensee, Frank
Abstract:: The emission of sulfur oxides from anthropogenic sources represents a potential threat to terrestrial ecosystems. Sulfate, the most highly oxidized form of sulfur, is the most common form of inorganic sulfur in most soil environments. The sorption of sulfate may influence the alkalinity of the soil solution and as a...
Resource Type:: Masters Thesis
Full Text:: Privacy Abstract approved: John Baham The emission of sulfur oxides from anthropogenic sources

Genesis of silica-enriched agricultural pans in soils managed under wheat-fallow cropping systems

Creator:: Al-ismaily, Said S.
Resource Type:: Masters Thesis
Full Text:: Agricultural Pans in Soils Managed Under Wheat-Fallow Cropping Systems. Abstract approved: John Baham

Geochemical characteristics of iron-manganese nodules in seasonally-saturated soils of the Willamette Valley, Oregon

Creator:: Seter, Lisa M.
Abstract:: This study was initiated to characterize the distribution of Fe-Mn nodules and to elucidate trends of Fe, Mn, and P relative to the intensity of the annual cycles of reduction and oxidation. Nodules were enriched in Fe, Mn, and P relative to the soil matrix making them an integral part...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: John Baham This study was initiated to characterize the distribution of Fe-Mn nodules

Tension relationships for steel cable on notched stumps

Creator:: Kimbell, Abigail R.
Abstract:: Tension relationships were determined in steel cable passed through a stump notch and anchored to another object. Tensions were measured in the cable coming into and leaving the notch with one full wrap on the stump. Data was collected from two sites with two test stumps (15.7 to 37.5 inches...
Resource Type:: Capstone Project

Hot-yarding as an alternative approach to cable thinning in young forest stands : a comparative study

Creator:: Lucas, Alan R.
Abstract:: This project was one of several studies conducted during the summer of 1981 that were part of the Smallwood Harvesting Research Program administered through the Department of Forest Engineering, Oregon State University. The study looked·at the feasibility of falling and yarding whole trees as a combined activity in a cable...
Resource Type:: Capstone Project

A study of soil disturbance and compaction resulting from the use of ground-based logging vehicles in the Sierra Nevada

Creator:: Lysne, David Holtan
Abstract:: Some results of a study conducted in the Sierra Nevada Mountains west of Lake Tahoe are reported. The study measured soil impacts resulting from the use of a Caterpillar Tractor model D6D, a John Deere wheeled skidder model JD-640, and an FMC Corporation model FMC 21OCA logging vehicle. The three...
Resource Type:: Capstone Project

ScholarsArchive@OSU

Low molecular weight organic acids in forest soils

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Adsorption of Cu(II) and Cd(II) by Na-montmorillonite at low surface coverage in the presence and absence of water soluble complexing organic ligands

Association of hydrophobic organic compounds with dissolved soil organic carbon

Surface complexation of protons and sulfate by kaolinite

Genesis of silica-enriched agricultural pans in soils managed under wheat-fallow cropping systems

Geochemical characteristics of iron-manganese nodules in seasonally-saturated soils of the Willamette Valley, Oregon

Tension relationships for steel cable on notched stumps

Hot-yarding as an alternative approach to cable thinning in young forest stands : a comparative study

A study of soil disturbance and compaction resulting from the use of ground-based logging vehicles in the Sierra Nevada

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