Search Results - "Harmon, M.E."

A carbon budget for forests of the conterminous United States by Turner, David P., Koerper, Greg J., Harmon, Mark E., Lee, Jeffrey J.

“…The potential need for national-level comparisons of greenhouse gas emissions, and the desirability of understanding terrestrial sources and sinks of carbon,…”
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Effects on carbon storage of conversion of old-growth forests to young forests by Harmon, M.E. (Oregon State University, Corvallis, OR), Ferrell, W.K, Franklin, J.F

“…Simulations of carbon storage suggest that conversion of old-growth forests to young fast-growing forests will not decrease atmospheric carbon dioxide (CO2) in…”
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Post‐fire succession and 20th century reduction in fire frequency on xeric southern Appalachian sites by Harrod, J.C, Harmon, M.E, White, P.S

“…We document post‐fire succession on xeric sites in the southern Appalachian Mountains, USA and assess effects of 20th century reduction in fire frequency on…”
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Cross-biome transplants of plant litter show decomposition models extend to a broader climatic range but lose predictability at the decadal time scale by CURRIE, W.S, HARMON, M.E, BURKE, I.C, HART, S.C, PARTON, W.J, SILVER, W

“…We analyzed results from 10-year long field incubations of foliar and fine root litter from the Long-term Intersite Decomposition Experiment Team (LIDET)…”
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Total carbon stocks in a tropical forest landscape of the Porce region, Colombia by Sierra, Carlos A., del Valle, Jorge I., Orrego, Sergio A., Moreno, Flavio H., Harmon, Mark E., Zapata, Mauricio, Colorado, Gabriel J., Herrera, María A., Lara, Wilson, Restrepo, David E., Berrouet, Lina M., Loaiza, Lina M., Benjumea, John F.

“…Detailed ground-based quantifications of total carbon stocks in tropical forests are few despite their importance in science and ecosystem management. Carbon…”
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Consistent Land- and Atmosphere-Based U.S. Carbon Sink Estimates by Pacala, S. W., Hurtt, G. C., Baker, D., Peylin, P., Houghton, R. A., Birdsey, R. A., Heath, L., Sundquist, E. T., Stallard, R. F., Ciais, P., Moorcroft, P., Caspersen, J. P., Shevliakova, E., Moore, B., Kohlmaier, G., Holland, E., Gloor, M., Harmon, M. E., S.-M. Fan, Sarmiento, J. L., Goodale, C. L., Schimel, D., Field, C. B.

“…For the period 1980-89, we estimate a carbon sink in the coterminous United States between 0.30 and 0.58 petagrams of carbon per year (petagrams of carbon =…”
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Carbon Sequestration in Forests: Addressing the Scale Question by Harmon, Mark E

“…Abstract Forests may have an important role to play in removing carbon dioxide from the atmosphere. However, the extent of their role depends not only on the…”
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Rate of tree carbon accumulation increases continuously with tree size by Stephenson, N.L, Das, A.J, Condit, R, Russo, S.E, Baker, P.J, Beckman, N.G, Coomes, D.A, Lines, E.R, Morris, W.K, Ruger, N, Alvarez, E, Blundo, C, Bunyavejchewin, S, Chuyong, G, Davies, S.J, Duque, A, Ewango, C.N, Flores, O, Franklin, J.F, Grau, H.R, Hao, Z, Harmon, M.E, Hubbell, S.P, Kenfack, D, Lin, Y, Makana, J.-R, Malizia, A, Malizia, L.R, Pabst, R.J, Pongpattananurak, N, Su, S.-H, Sun, I-F, Tan, S, Thomas, D, van Mantgem, P.J, Wang, X, Wiser, S.K, Zavala, M.A

“…Forests are major components of the global carbon cycle, providing substantial feedback to atmospheric greenhouse gas concentrations (1). Our ability to…”
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Detecting defects in conifers with ground penetrating radar: applications and challenges by Butnor, J.R, Pruyn, M.L, Shaw, D.C, Harmon, M.E, Mucciardi, A.N, Ryan, M.G

“…Our objective was to test ground penetrating radar (GPR) to non-destructively estimate decay volumes in living coniferous trees. GPR is geophysical tool which…”
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Coarse woody debris dynamics in two old-growth ecosystems by Harmon, M.E. (Oregon State University, Corvallis, OR), Hua, C

“…A study of the decomposition of coarse woody debris in the Changbai Mountain Biosphere Reserve and the H.J. Andrews Experimental Forest in Oregon reveals that…”
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Decomposition of coarse woody debris originating by clearcutting of an old-growth conifer forest by Janisch, Jack E., Harmon, Mark E., Chen, Hua, Fasth, Becky, Sexton, Jay

“…Decomposition constants (k) for above-ground logs and stumps and sub-surface coarse roots originating from harvested old-growth forest (estimated age 400–600…”
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Dynamics of the dead wood carbon pool in northwestern Russian boreal forests by Krankina, O.N, Harmon, M.E

“…Dead wood dynamics were examined in a series of permanent plots established in closed, productive second-growth forest stands of north-west Russia and in…”
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Estimating annual bole biomass production using uncertainty analysis by Woolley, Travis J., Harmon, Mark E., O’Connell, Kari B.

“…Two common sampling methodologies coupled with a simple statistical model were evaluated to determine the accuracy and precision of annual bole biomass…”
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Chemistry and Long-Term Decomposition of Roots of Douglas-Fir Grown under Elevated Atmospheric Carbon Dioxide and Warming Conditions by Chen, H, Rygiewicz, P.T, Johnson, M.G, Harmon, M.E, Tian, H, Tang, J.W

“…Elevated atmospheric CO2 concentrations and warming may affect the quality of litters of forest plants and their subsequent decomposition in ecosystems,…”
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Two decades of carbon flux from forests of the Pacific Northwest: estimates from a new modeling strategy by Cohen, W.B, Harmon, M.E, Wallin, D.O, Fiorella, M

“…Better techniques for modeling terrestrial carbon fluxes are being developed. These models can determine the maximal live and detrital biomass accumulation and…”
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Climate and litter quality controls on decomposition: an analysis of modeling approaches by Moorhead, D.L, Currie, W.S, Rastetter, E.B, Parton, W.J, Harmon, M.E

“…Four mathematical models simulated decay of two litter types of contrasting quality over a 2‐year period at four sites in North America. The litter types were…”
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Tree death as an ecological process by Franklin, J.F, Shugart, H.H, Harmon, M.E

“…Tree death can be used to illustrate the variability of an ecological process in terms of rates, as well as causal factors or mechanisms. Tree mortality…”
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Two Decades of Carbon Flux from Forests of the Pacific Northwest by Cohen, Warren B., Harmon, Mark E., Wallin, David O., Fiorella, Maria

“…Cohen et al describe their strategy for estimating carbon fluxes, which involves a collection of forest ecosystem and related models largely driven by Landsat…”
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Tree seedlings on logs in Picea-Tsuga forests of Oregon and Washington by Harmon, M.E, Franklin, J.F

“…Logs are the major seedbed for trees in coastal Picea sitchensis–Tsuga heterophylla forests. Field experiments were conducted at Cascade Head, Oregon, and Hoh…”
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Water balance of conifer logs in early stages of decomposition by Harmon, M.E. (Oregon State Univ., Corvallis, OR (USA). Dept. of Forest Science), Sexton, J

“…Seasonal and long-term changes in the water balance of conifer logs during the first 8 years of decomposition were studied in an old-growth Pseudotsuga/Tsuga…”
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