Search Results - "Homann, P.S."

Changes in ecosystem carbon storage over 40 years on an old-field/forest landscape in east-central Minnesota by Johnston, M.H., Homann, P.S., Engstrom, J.K., Grigal, D.F.

“…Organic carbon (C) storage in complex landscapes and its temporal change can be important in the global C budget. Change in C storage between 1938 and 1977 was…”
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Molecular weight distribution of soluble organics from laboratory-manipulated surface soils by Homann, P.S. (Oregon State Univ., Corvallis, OR), Grigal, D.F

“…Transfer of organic matter from solid to solution phase is the first step in the redistribution by leaching of organic C and associated elements in forest soil…”
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Soil nitrogen dynamics following harvesting and conversion of red alder and Douglas fir stands by Van Miegroet, H. (Oak Ridge National Lab., Oak Ridge, TN), Homann, P.S, Cole, D.W

“…Drastic reductions in NO3- leaching have been observed after harvesting of mature red alder (Alnus rubra Bong.) stands. Our objective was to examine whether…”
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Soil C and N minimum detectable changes and treatment differences in a multi-treatment forest experiment by Homann, P.S., Bormann, B.T., Boyle, J.R., Darbyshire, R.L., Bigley, R.

“…Detecting changes in forest soil C and N is vital to the study of global budgets and long-term ecosystem productivity. Identifying differences among land-use…”
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What the soil reveals: Potential total ecosystem C stores of the Pacific Northwest region, USA by Homann, Peter S., Harmon, Mark, Remillard, Suzanne, Smithwick, Erica A.H.

“…How much organic C can a region naturally store in its ecosystems? How can this be determined, when land management has altered the vegetation of the landscape…”
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Detecting Treatment Differences in Soil Carbon and Nitrogen Resulting from Forest Manipulations by Homann, P.S., Bormann, B.T., Boyle, J.R.

“…Forest management practices may alter soil properties, but experimental evaluation of treatment effects is often difficult because large soil variability…”
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Soil organic carbon in a mountainous, forested region: relation to site characteristics by Homann, P.S. (Oregon State University, Corvallis, OR.), Sollins, P, Chappell, H.N, Stangenberger, A.G

“…Soil organic C content (SOC, kilograms C per square meter) and its relation to site characteristics are important in evaluating current regional, continental,…”
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Regional soil organic carbon storage estimates for western Oregon by multiple approaches by Homann, P.S. (Western Washington Univ., Bellingham, WA.), Sollins, P, Fiorella, M, Thorson, T, Kern, J.S

“…Soil is an important factor in regional and global C budgets because it serves as a reservoir of large amounts of organic C. In our study, we compared six…”
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Denitrification enzyme activity of Douglas-fir and Red Alder Forest soils of the Pacific Northwest by Griffiths, R.P., Homann, P.S., Riley, R.

“…Nitrogen-fixing red alder ( Alnus rubra Bong.) increases soil organic matter and N content of forest soils. This study compared denitrification enzyme activity…”
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Below-ground organic carbon and decomposition potential in a field-forest glacial-outwash landscape by Homann, P.S, Grigal, D.F

“…Relationships of soil properties to land use and topography may vary among locales because of differences in other controlling factors. We evaluated…”
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Nitrogen mineralization, groundwater dynamics, and forest growth on a Minnesota outwash landscape by Grigal, D.F, Homann, P.S

“…We measured aboveground biomass and aboveground net primary productivity (ANPP), groundwater depth and fluctuation, and in situ nitrogen (N) mineralization in…”
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Cation distribution, cycling, and removal from mineral soil in Douglas-fir and red alder forests by Homann, Peter S., Van Miegroet, Helga, Cole, Dale W., Wolfe, Gordon V.

“…Overstory species influence the distribution and dynamics of nutrients in forest ecosystems. Ecosystem-level estimates of Ca, Mg, and K pools and cycles in…”
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