Index Catalog // ScholarsArchive@OSU

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

Creator:: Hudiburg, T. W., Law, B. E., and Thornton, P. E.
Abstract:: Ecosystem process models are important tools for determining the interactive effects of global change and disturbance on forest carbon dynamics. Here we evaluated and improved terrestrial carbon cycling simulated by the Community Land Model (CLM4), the land model portion of the Community Earth System Model (CESM1.0.4). Our analysis was conducted...
Resource Type:: Article
Full Text:: Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests T. W. Hudiburg1, B. E. Law2

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Creator:: Meigs, Garrett W., Kennedy, Robert E., and Cohen, Warren B.
Abstract:: Insects are important forest disturbance agents, and mapping their effects on tree mortality and surface fuels represents a critical research challenge. Although various remote sensing approaches have been developed to monitor insect impacts, most studies have focused on single insect agents or single locations and have not related observed changes...
Resource Type:: Article
Full Text:: ,⁎, Robert E. Kennedy a, Warren B. Cohen b a Department of Forest Ecosystems and Society, Oregon State

Uncertainty analysis: an evaluation metric for synthesis science

Creator:: Harmon, Mark E., Fasth, Becky, Halpern, Charles B., and Lutz, James A.
Abstract:: The methods for conducting reductionist ecological science are well known and widely used. In contrast, those used in the synthesis of ecological science (i.e., synthesis science) are still being developed, vary widely, and often lack the rigor of reductionist approaches. This is unfortunate because the synthesis of ecological parts into...
Resource Type:: Article
Full Text:: science Uncertainty analysis: an evaluation metric for synthesis science Harmon, M. E., Fasth, B

Decadal Trends in Net Ecosystem Production and Net Ecosystem Carbon Balance for a Regional Socioecological System

Creator:: Turner, David P., Ritts, William D., Yang, Zhiqiang, Kennedy, Robert E., Cohen, Warren B., Duane, Maureen V., Thornton, Peter E., and Law, Beverly E.
Abstract:: Carbon sequestration is increasingly recognized as an ecosystem service, and forest management has a large potential to alter regional carbon fluxes − notably by way of harvest removals and related impacts on net ecosystem production (NEP). In the Pacific Northwest region of the U.S., the implementation of the Northwest Forest...
Resource Type:: Article
Full Text:: . Turnera, William D. Rittsa, Zhiqiang Yanga, Robert E. Kennedya, Warren B. Cohenb, 13 Maureen V. Duanea

Managing for climate change on federal lands of the western United States: perceived usefulness of climate science, effectiveness of adaptation strategies, and barriers to implementation

Creator:: Kemp, Kerry B., Blades, Jarod J., Klos, P. Zion, Hall, Troy E., Force, Jo Ellen, Morgan, Penelope, and Tinkham, Wade T.
Abstract:: Recent mandates in the United States require federal agencies to incorporate climate change science into land management planning efforts. These mandates target possible adaptation and mitigation strategies. However, the degree to which climate change is actively being considered in agency planning and management decisions is largely unknown. We explored the...
Resource Type:: Article
Full Text:: implementation Kemp, K. B., Blades, J. J., Klos, P. Z., Hall, T. E., Force, J. E., Morgan, P., & Tinkham, W. T

United States Forest Disturbance Trends Observed Using Landsat Time Series

Creator:: Masek, Jeffrey G., Goward, Samuel N., Kennedy, Robert E., Cohen, Warren B., Moisen, Gretchen G., Schleeweis, Karen, and Huang, Chengquan
Abstract:: Disturbance events strongly affect the composition, structure, and function of forest ecosystems; however, existing US land management inventories were not designed to monitor disturbance. To begin addressing this gap, the North American Forest Dynamics (NAFD) project has examined a geographic sample of 50 Landsat satellite image time series to assess...
Resource Type:: Article
Full Text:: Using Landsat Time Series Jeffrey G. Masek,1* Samuel N. Goward,2 Robert E. Kennedy,3,4 Warren B. Cohen

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Creator:: Dye, Alex W., Rastogi, Bharat, Clemesha, Rachel E. S., Kim, John B., Samelson, Roger M., Still, Christopher J., and Williams, A. Park
Abstract:: Summertime low clouds are common in the Pacific Northwest (PNW), but spatiotemporal patterns have not been characterized. We show the first maps of low cloudiness for the western PNW and North Pacific Ocean using a 22‐year satellite‐derived record of monthly mean low cloudiness frequency for May through September and supplemented...
Resource Type:: Article
Full Text:: ., Clemesha, R. E. S., Kim, J. B., Samelson, R. M., Still, C. J., & Williams, A. P. (2020). Spatial patterns

Understanding ecohydrological connectivity in savannas: a system dynamics modelling approach

Creator:: Miller, Gretchen R., Cable, Jessica M., McDonald, Alyson K., Bond, Barbara, Franz, Trenton E., Wang, Lixin, Gou, Si, Tyler, Anna P., Zou, Chris B., and Scott, Russell L.
Abstract:: Ecohydrological connectivity is a system level property that results from the linkages in the networks of water transport through ecosystems, by which feedbacks and other emergent system behaviours may be generated. We created a system dynamics model that represents primary ecohydrological networks to examine how connectivity between ecosystem components impacts...
Resource Type:: Article
Full Text:: . McDonald,3 Barbara Bond,4 Trenton E. Franz,5 Lixin Wang,5,6 Si Gou,1 Anna P. Tyler,7 Chris B. Zou8 and

Causes and implications of the correlation between forest productivity and tree mortality rates

Creator:: Stephenson, Nathan L., van Mantgem, Phillip J., Bunn, Andrew G., Bruner, Howard, Harmon, Mark E., O'Connell, Kari B., Urban, Dean L., and Franklin, Jerry F.
Abstract:: At global and regional scales, tree mortality rates are positively correlated with forest net primary productivity (NPP). Yet causes of the correlation are unknown, in spite of potentially profound implications for our understanding of environmental controls of forest structure and dynamics and, more generally, our understanding of broad-scale environmental controls...
Resource Type:: Article
Full Text:: BRUNER,3 MARK E. HARMON,3 KARI B. O’CONNELL,3 DEAN L. URBAN,4 AND JERRY F. FRANKLIN5 1U.S. Geological

Trends in stream nitrogen concentrations for forested reference catchments across the USA

Creator:: Argerich, A., Johnson, S. L., Sebestyen, S. D., Rhoades, C. C., Greathouse, E., Knoepp, J. D., Adams, M. B., Likens, G. E., Campbell, J. L., McDowell, W. H., Scatena, F. N., and Ice, G. G.
Abstract:: To examine whether stream nitrogen concentrations in forested reference catchments have changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr of data collected from 22 catchments at seven USDA Forest Service Experimental Forests. Trends in stream nitrogen presented high spatial variability both...
Resource Type:: Article
Full Text:: A Argerich1, S L Johnson2, S D Sebestyen3, C C Rhoades4, E Greathouse1, J D Knoepp5, M B Adams6, G E

ScholarsArchive@OSU

Evaluation and improvement of the Community Land Model (CLM4) in Oregon forests

A Landsat time series approach to characterize bark beetle and defoliator impacts on tree mortality and surface fuels in conifer forests

Uncertainty analysis: an evaluation metric for synthesis science

Decadal Trends in Net Ecosystem Production and Net Ecosystem Carbon Balance for a Regional Socioecological System

Managing for climate change on federal lands of the western United States: perceived usefulness of climate science, effectiveness of adaptation strategies, and barriers to implementation

United States Forest Disturbance Trends Observed Using Landsat Time Series

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Understanding ecohydrological connectivity in savannas: a system dynamics modelling approach

Causes and implications of the correlation between forest productivity and tree mortality rates

Trends in stream nitrogen concentrations for forested reference catchments across the USA

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