Index Catalog // ScholarsArchive@OSU

El control del riego mediante la tensión matricial del suelo

Creator:: Shock, Clinton C., Flock, Rebecca, Feibert, Erik, Shock, Cedric A., Pereira, Andre, Jensen, Lynn, and Oregon State University. Extension Service
Abstract:: Una de las herramientas más eficaces utilizadas por el Malheur Experiment Station durante las últimas dos décadas es el sensor matricial granular (o GMS por sus siglas en inglés), el cual mide la humedad del suelo. El sensor tiene sólo 7,5 cm de largo, y normalmente se entierra verticalmente en...
Resource Type:: Technical Report
Full Text:: verticalmente en el suelo. Se conoce como el Watermark Soil Moisture Sensor, y está fabricado por Irrometer Co

Irrigation monitoring using soil water tension

Creator:: Flock, Rebecca, Flock, Rebecca, Feibert, Erik, Shock, Cedric A., Pereira, Andre, Jensen, Lynn, and Oregon State University. Extension Service
Abstract:: One of the most important tools we have been using at the Malheur Agricultural Experiment Station over the past two decades is the granular matrix sensor (GMS, Watermark Soil Moisture Sensor, Irrometer Co., Riverside, CA), which measures soil moisture. It is only about 3 inches long and normally is buried...
Resource Type:: Technical Report
Full Text:: Moisture Sensor, Irrometer Co., Riverside, CA), which measures soil moisture. It is only about 3 inches

Penman-Monteith surface resistance for hybrid poplar trees

Creator:: Butler, Dana Anthony
Abstract:: The application of the widely used Penrnan-Monteith evapotranspiration equation to hybrid poplar trees is impossible without a valid surface resistance. The increase in applications of drip-irrigated hybrid poplar trees for wood chip stock and veneer production, as well as bioremediation, constitutes a need for estimating the evapotranspiration of these trees....
Resource Type:: Masters Thesis
Full Text:: estimates of surface resistance for poplar trees. Six years of weekly soil moisture content for drip

Monitoring soil nutrients using a management unit approach

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Staben, Mary L., Ellsworth, Jason W., Sullivan, Dan M. (Dan Matthew), 1954-, Horneck, Donald Arthur, Brown, Bradford D., Stevens, Robert G., and Pacific Northwest Cooperative Extension
Abstract:: This publication focuses on how to design a soil nutrient monitoring strategy that fits today’s requirements for record keeping and increased accuracy in managing nitrogen (N), phosphorus (P), and other nutrients. We advocate the use of management units or zones for soil testing and nutrient application. To measure a real...
Resource Type:: Technical Report
Full Text:: monitoring activi- ties, such as plant tissue sampling, soil moisture measurement, or crop yield estimates

Biophysical controls on soil respiration in the dominant patch types of an old-growth, mixed-conifer forest

Creator:: Ma, Siyan, Chen, Jiquan, Butnor, John R., North, Malcolm, Euskirchen, Eugenie S., and Oakley, Brian
Abstract:: Little is known about biophysical controls on soil respiration in California’s Sierra Nevada oldgrowth, mixed-conifer forests. Using portable and automated soil respiration sampling units, we measured soil respiration rate (SRR) in three dominant patch types: closed canopy (CC), ceanothus-dominated patches (CECO), and open canopy (OC). SRR varied significantly among the...
Resource Type:: Article
Full Text:: concentrations from moisture-driven root and micro- bial respiration. Thus, soil CO2 profile measurement is more

Distinguishing biological and physical controls on soil respiration

Creator:: Phillips, Claire L.
Abstract:: Soil respiration, or the combined CO₂ emissions from roots and soil microorganisms, constitutes one of the largest losses of carbon (C) from terrestrial ecosystems. The major drivers of soil respiration, which include soil moisture, temperature, and substrate quality, have been known for some time. Nevertheless, correlations between these drivers and...
Resource Type:: Dissertation
Full Text:: ecosystems. The major drivers of soil respiration, which include soil moisture, temperature, and substrate

Application of autoradiographic techniques for contaminant distribution studies in soils

Creator:: Povetko, Oleg G.
Abstract:: In order to determine the physical location of contaminants in soil, two solidified soil "thin" sections, which preserve the undisturbed structural characteristics of the original soil, containing weapons-grade plutonium from the Rocky Flats Environmental Test Site were prepared. Two autoradiographic methods were used in radionuclide mapping: contact autoradiography using CR-39®...
Resource Type:: Dissertation
Full Text:: distribution with depth of soil (error bars: +1- size measurement propagation errors

Advantages of an in-kiln moisture measurement

Creator:: Yasbek, Trevor, Haney, Dave, Western Dry Kiln Association, and Western Dry Kiln Association. Meeting (55th : 2005 : Reno, Nev.)
Resource Type:: Conference Proceeding
Full Text:: ADVANTAGES OF AN IN-KILN MOISTURE MEASUREMENT Trevor Yasbek and

The methodology, implementation, and analysis of the isotopic composition of soil respired CO₂ in forest ecological research

Creator:: Kayler, Zachary Eric
Abstract:: Soils are the largest terrestrial pool of carbon, therefore it is critical to understand what controls soil carbon efflux to the atmosphere in light of current climate uncertainty. The primary efflux of carbon from soil is soil respiration which is typically categorized into autotrophic and heterotrophic respiration. These two components...
Resource Type:: Dissertation
Full Text:: and the carbon isotopic signature; soil moisture primarily influenced tree processes related to

Radiologic sampling of surface soils near a USEPA superfund site

Creator:: Blakeman, Christopher John
Abstract:: The human health effects of acute exposure to high levels of ionizing radiation are well understood; however, when these irradiations occur at low levels, there is controversy as to their potential health threat (BEIR V, 1990). For individuals living in areas where the level of naturally occurring background radiation is...
Resource Type:: Masters Thesis
Full Text:: uppermost soil layers. Soil samples were collected from seven sites located between 1.3 and 6.7 km along a

Using the nitrogen mineralization soil test to predict spring fertilizer N rate : soft white winter wheat grown in western Oregon

Creator:: Oregon State University. Extension Service, Hart, John M. (John Mervyn), 1947-, Christensen, Neil Walter, 1944-, Mellbye, Mark Edward, and Flowers, Michael Darrell, 1971-
Abstract:: Soft white winter wheat grown in western Oregon requires a spring application of nitrogen (N) fertilizer for optimum production. Determining the amount of N to apply has been a challenge for growers because wheat is produced in numerous rotations that provide varying amounts of N to the wheat crop. Inadequate...
Resource Type:: Technical Report
Full Text:: Using the Nitrogen Mineralization Soil Test to Predict

Agronomic guidelines for flexible cropping systems in dryland areas of Oregon

Creator:: Lutcher, L. K. (Lawrence K.), Wysocki, Donald John, 1952-, Corp, Mary K., Horneck, Donald Arthur, and Oregon State University. Extension Service
Abstract:: Flexible cropping systems allow for an opportunistic change in an established rotation. Plant-available soil water is the most reliable indicator of potential yield.
Resource Type:: Technical Report
Full Text:: on the wet- ting front. The wetting front is the position or depth of moisture in the soil profile

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Creator:: Floyd, William C.
Abstract:: The Calapooia River, a major tributary of the Willamette River in western Oregon, is a watershed typical of many found in the Willamette Basin. Public and private forested lands occur in the steep Upper Zone of the watershed, mixed forest and agriculture lands are found in the Middle Zone, and...
Resource Type:: Masters Thesis
Full Text:: Between Dissolved Nitrogen and Landuse/Landcover and Soil Draina2e at Multiole Soatial Scales in the

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

Creator:: Barnard, Holly Rene
Abstract:: The links between forests, streamflow, and climate are poorly understood. Despite hundreds of studies over the past 60 years, fundamental questions of forests' effects on the hydrologic cycle remain unanswered. The hydrological cycle involves mutually-dependent biological and physical processes that operate at multiple scales of time and space, and this...
Resource Type:: Dissertation
Full Text:: -specific soil type, we examined relative changes in moisture content. Measurement locations were in a

ScholarsArchive@OSU

El control del riego mediante la tensión matricial del suelo

Irrigation monitoring using soil water tension

Penman-Monteith surface resistance for hybrid poplar trees

Monitoring soil nutrients using a management unit approach

Biophysical controls on soil respiration in the dominant patch types of an old-growth, mixed-conifer forest

Distinguishing biological and physical controls on soil respiration

Application of autoradiographic techniques for contaminant distribution studies in soils

Advantages of an in-kiln moisture measurement

The methodology, implementation, and analysis of the isotopic composition of soil respired CO₂ in forest ecological research

Radiologic sampling of surface soils near a USEPA superfund site

Using the nitrogen mineralization soil test to predict spring fertilizer N rate : soft white winter wheat grown in western Oregon

Agronomic guidelines for flexible cropping systems in dryland areas of Oregon

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

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