Poster # 105. Altimir, Nuria^*,1, Aarflot, Asbjorn¹, Boy, Michael¹, Kinnunen, Petter¹, Lappalainen, Hanna¹, Reissell, Anni¹, ¹ iLEAPS international project office, Helsinki, Finland, The integrated land ecosystem - atmosphere processes study iLEAPS. A new international research programme.

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Poster # 106. Tian, Hanqin¹, Melillo, Jerry², Running, Steven³, Liu, Jiyuan⁴, Myneni, Ranga⁵, IDS Project Members, ⁶, ¹ School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, USA² The Ecosystem Center, Marine Biological Labratory, Woods Hole, MA, USA³ Dept of Ecosystem and Conservation Sciences, University of Montana, Missoula, MT, USA⁴ Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China⁵ Department of Geography, Boston University, Boston, MA, USA⁶ Multiple Institutions, various cities, in China and USA, Linking Multi-scale Remotely Sensed Data, Field Observations and Biogeochemistry Models to Evaluate Terrestrial Carbon Budget in China.

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Poster # 107. Treat, Claire¹, Bubier, Jill¹, Varner, Ruth², Crill, Patrick^{2, 3}, ¹ Mount Holyoke College, South Hadley, MA² Complex Systems Research Center, Durham, NH³ University of Stockholm, Stockholm, Sweden, Interannual variations in CO₂ and CH₄ flux from a temperate fen.

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Poster # 108. Thomas, Cassondra^*,1, ¹ NRC/NASA Kennedy, Kennedy Space Center, FL, Nutrient Cycling in Indian River Lagoon Marsh Impoundments: Using Ecological Network Analysis to Determine Effects of Management.

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Poster # 109. Morse, Jennifer^*,1, Bernhardt, Emily¹, Sudduth, Elizabeth¹, ¹ Biology Department, Durham, NC, USA, Effects of confluences on stream biogeochemistry.

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Poster # 110. Caron, Heather^*,1, Souther, Christina¹, Lichter, John¹, ¹ Bowdoin College, Brunswick, ME, Carbon, Nitrogen, Phosphorus, and Silica biogeochemistry of the Kennebec estuary, mid-coast Maine.

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Poster # 111. Yashiro, Yuichiro^*,1, Mariko, Shigeru², Koizumi, Hiroshi¹, ¹ Institute for Basin Ecosystem Studies, Gifu University, Gifu, Gifu, Japan² Institute of Biological Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan, Emission of nitrous oxide through a snowpack in ten types of ecosystems in Japan.

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Poster # 112. Virginia, Ross^*,1, Barrett, J¹, Stucker, Rebekka¹, Poage, Michael², Lyons, William³, ¹ Environmental Studies Program, Hanover, NH, USA² Indiana University of Pennsylvania, Indiana, PA, USA³ Byrd Polar Research Center, Columbus, OH, USA, Nitrate accumulation and cycling in hot and cold desert ecosystems.

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Poster # 113. Amatangelo, Kathryn^*,1, Vitousek, Peter¹, ¹ Stanford University, Stanford, CA, Effects of phylogeny and nutrient availability on Hawaiian fern stoichiometry.

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Poster # 115. Harlacher, Margaret^*,1, Peterjohn, William¹, ¹ West Virginia University, Morgantown, WV, The effect of tree species on the nitrate concentration and pH of soil leachate in a common-garden greenhouse experiment.

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Poster # 116. Iversen, Colleen^*,1, Norby, Richard², Gunderson, Carla², ¹ University of Tennessee, Knoxville, Tennessee² Oak Ridge National Laboratory, Oak Ridge, Tennessee, Will nitrogen limitation preclude a sustained productivity response of a deciduous forest to elevated concentrations of atmospheric CO₂?

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Poster # 118. Machona, Bruce¹, Lovett, Gary¹, ¹ Wiley College, Marshall, TX, USA, Effect of nitrogen addition on fine roots in an oak forest.

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Poster # 119. Norby, Richard^*,1, Iversen, Colleen², ¹ Oak Ridge National Laboratory, Oak Ridge, TN² University of Tennessee, Knoxville, TN, Nitrogen-use efficiency of a sweetgum forest in elevated CO₂.

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Poster # 120. Rothstein, David^*,1, Burton, Andrew², Zak, Donald³, Pregitzer, Kurt², ¹ Michigan State University, E. Lansing, MI² Michigan Technological University, Houghton, MI³ University of Michigan, Ann Arbor, MI, Effects of long-term nitrogen amendment on leaf and wood decomposition in northern hardwood forests.

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Poster # 121. Ryser, Peter¹, Vernescu, Corina¹, ¹ Laurentian University, Sudbury, Ontario, Canada, Leaf structure and litter decomposition among herbaceous plants of Northeastern Ontario wetlands.

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Poster # 122. Schafer, Jennifer^*,1, Mack, Michelle¹, ¹ University of Florida, Gainesville, Florida, Effects of time since fire on ¹⁵N natural abundance of Florida scrub vegetation.

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Poster # 123. Vivanco, Lucía^*,1, Austin, Amy T.¹, ¹ University of Buenos Aires and IFEVA-CONICET, Buenos aires, Argentina, Tree species' effects on litter decomposition in a natural forest mosaic in Patagonia, Argentina.

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Poster # 124. Brunie, Lisa ^{1, 2}, ¹ Mount Holyoke College Department of Earth and Environment, South Hadley, Massachusetts, USA² Ecosystem Center, Woods Hole, Massachusetts, USA, Atlantic White Cedar swamp: Effects of temperature and water table position on decomposition.

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Poster # 125. Adler, Paul^*,1, Del Grosso, Steven^{2, 3}, Parton, William³, Easterling, William⁴, ¹ USDA-ARS, University Park, PA² USDA-ARS, Fort Collins, CO³ Colorado State University, Fort Collins, CO⁴ Pennsylvania State University, University Park, PA, Climate change effects on greenhouse gas emissions from bioenergy cropping systems in Pennsylvania.

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Poster # 126. Adachi, Minako^*,1, Yashiro, Yuichiro¹, Rasidah, Wan², Okuda, Toshinori³, Koizumi, Hiroshi¹, ¹ River Basin Research Center, Gifu, Gifu, Japan² Forest Research Institute Malaysia, Kuala Lumpur, Malaysia³ National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan, Seasonal variation in soil respiration in tropical forests and agroforests, Malaysia.

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Poster # 127. Bate, D^*,1, Barrett, J¹, Virginia, Ross¹, ¹ Environmental Studies Program, Hanover, NH, USA, Phosphorus cycling across a soil chronosequence in the McMurdo Dry Valleys of Antarctica.

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Poster # 128. Beauregard, Susan^*,1, Cote, Benoit^*,1, ¹ McGill University, Ste.Anne de Bellevue, Quebec, Canada, Residual fraction of elements in wood tissue of three common hardwood species on three distinct geological substrates in southern Quebec over the last sixty years.

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Poster # 130. Boone, Richard^*,1, Rogers, Stephen², ¹ University of Alaska Fairbanks, Fairbanks, AK² CSIRO Land & Water, Urrbrae, South Australia, Australia, Presence and expression of microbial genes regulating soil nitrogen dynamics along the Tanana River successional sequence.

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Poster # 131. Bryant, David^*,1, Aber, John², Innes, James³, Wandland, Kristen⁴, Zarin, Daniel⁵, ¹ School of Life Sciences, Tempe, AZ, USA² University of New Hampshire, Durham, NH, USA³ USDA Forest Service - PSW Research Station, Davis, CA⁴ ENSR International, Raliegh, NC, USA⁵ School of Forest Resources & Conservation, Gainesville, FL, USA, Nitrogen and Phosphorus Dynamics of Foliage, Litter and Oi Horizon on Landslide Disturbed Forests of the White Mountain National Forest, NH, USA.

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Poster # 132. Corbin, Jeffrey^*,1, D'Antonio, Carla², ¹ University of California, Berkeley, CA, USA² University of California, Santa Barbara, CA, USA, Modeling mechanisms of species effects on soil nitrogen cycling in a California coastal prairie grassland.

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Poster # 133. Varner, Ruth¹, Blanchard, Robert¹, Dailey, Gail¹, ¹ University of New Hampshire, Durham, NH, Methyl bromide emissions from fungi in different ecosystems.

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Poster # 134. DeForest, Jared^*,1, Noormets, Asko¹, Tenney, Gwen¹, Chen, Jiquan¹, ¹ Earth, Ecological, and Environmental Sciences, Toledo, OH, Decomposition at multiple spatial scales in oak savanna.

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Poster # 135. Jang, Inyoung^*,1, Kang, Hojeong¹, ¹ Ewha Womans University, Seoul, Repubilc of Korea, The Rates of Methane Oxidation in a Temperate Forest Soil in Korea.

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Poster # 136. Kane, Evan^*,1, Valentine, David¹, Michaelson, Gary², Fox, John¹, Ping, Chien-Lu^{1, 2}, ¹ University of Alaska, Fairbanks, AK, USA² University of Alaska, Palmer, AK, USA, Water-soluble organic carbon characteristics and fluxes along climate and stand productivity gradients in interior Alaskan soils.

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Poster # 137. Kim, Dong^*,1, Son, Yohwan², Yi, Myeong³, Jin, Hyun⁴, Park, In⁴, ¹ Sungkyunkwan University, Suwon, Korea² Korea University, Seoul, Korea³ Kangwon National University, Chuncheon, Korea⁴ Kyunghee University, Suwon, Korea, Effects of site conditions on the nutrient dynamics of several oak stands in Korea.

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Poster # 138. McCulley, Rebecca^*,1, Jackson, Robert², ¹ Dept. of Biology, Durham, NC, USA² Nicholas School of the Environment and Earth Sciences, Durham, NC, USA, Impacts of woody plant encroachment and land-use change on soil carbon stocks of the Great Plains.

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Poster # 139. McEnroe, Nicola¹, Roulet, Nigel^{2, 2}, Moore, Tim, Garneau, Michelle, ¹ McGill University, Montreal, Quebec, Canada² McGill School of Environment, Montreal, Quebec, Canada, Does size matter? In-situ pool carbon dynamics of a northern patterned peatland, James Bay, Quebec.

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Poster # 140. Pierce, Danielle^*,1, Smart, David¹, Steenwerth, Kerri², ¹ University of California, Davis² USDA-ARS, Davis, CA, Vineyard management methods for carbon sequestration in soil: a stable carbon isotope approach.

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Poster # 141. Thiffault, Evelyne^*,1, Bélanger, Nicolas², Munson, Alison¹, Paré, David³, ¹ Université Laval, Québec, Québec² University of Saskatchewan, Saskatoon, Saskatchewan³ Canadian Forest Service, Québec, Québec, Simulation of soil nutrient availability under whole-tree and stem-only harvesting in the boreal forest of Quebec.

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Poster # 142. Thijs, Ann^{*,1, 2}, Litvak, Marcy¹, ¹ University of Texas at Austin, Austin, Texas² , Soil organic carbon changes due to woody encroachment by Juniperus ashei and Prosopis glandulosa in a Central Texas Savanna.

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Poster # 143. Wang, Jin^*,1, Epstein, Howard², ¹ University of Virginia, Charlottesville, VA² University of Virginia, Charlottesville, VA, Shifts in the Carbon Budget During Succession in the Shenandoah Valley of Northern Virginia.

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Poster # 144. Waters, Matthew^*,1, Bernhardt, Emily², Wetzel, Robert¹, ¹ University of North Carolina at Chapel Hill, Chapel Hill, NC, USA² Duke University, Durham, NC, USA, Variation in root exudation rates across a CO2 gradient.

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Poster # 145. Yanai, Ruth^*,1, Park, Byung Bae¹, Nezat, Carmen², Blum, Joel², ¹ SUNY College of Environmental Science and Forestry, Syracuse, NY² University of Michigan, Ann Arbor, MI, Apatite as a calcium source to forests in New York State.

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