94th ESA Annual Meeting (August 2 -- 7, 2009)

Tuesday, August 4, 2009: 5:00 PM-6:30 PM

Exhibit Hall NE & SE, Albuquerque Convention Center

PS 39-167

Rhizosphere priming effect of Helianthus annuus on soil organic carbon decomposition under short- and long-term soil warming
Biao Zhu, Lawrence Berkeley National Laboratory; Weixin Cheng, University of California at Santa Cruz

PS 39-168

Relationships between ponderosa pine above-ground structure and below-ground fine root mass at three spatial scales
Thomas L. Otto, The Evergreen State College; Dylan G. Fischer, The Evergreen State College

PS 39-169

Hydraulic lift enhances nitrogen acquisition of a grass species
John H. Kim, Duke University; Cristina Armas, Universidad de La Serena & Institute of Ecology and Biodiversity; Timothy M. Bleby, University of Western Australia; Robert B. Jackson, Stanford and Duke universities

PS 39-170

Ranking critical factors in estimating root longevity and turnover: Comparisons between diameter and order approaches
Jiacun Gu, Northeast Forestry University; Harbin Li, USDA Forest Service Southeastern Research Station; Zhengquan Wang, Northeast Forestry University

PS 39-171

Rhizomatous contributions to growth & survival in the notorious pest Imperata cylindrica (Cogongrass)
S.G. Sanford, Univeristy of South Florida; Gordon Fox, University of South Florida

PS 39-172

Evaluating the role of root exudates in coupling ecosystem C and N cycling using a rhizosphere simulator in forest soils
Andrea L. Martin, Duke University; Jacquelyn D. Burmeister, Duke University; Adrien C. Finzi, Boston University; Emily Bernhardt, Duke University; Richard P. Phillips, Indiana University

PS 39-173

Comparing diameter and order approaches with simulation modeling of root longevity and turnover: Estimation accuracy and error partition
Harbin Li, USDA Forest Service Southeastern Research Station; Jiacun Gu, Northeast Forestry University; Zhengquan Wang, Northeast Forestry University

PS 39-174

Impacts of elevated rhizospheric CO₂ on root metabolism and carbon fixation in Populus deltoides
Dawn M. Matarese, Portland State University; Todd N. Rosenstiel, Portland State University

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PS 39 - Rhizophere and Root Function