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Atmospheric [CO.sub.2] and Ecosystem Feedback Between C and N Cycles: Synthesis of an Integrated Experiment(1).
- Article from:
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Ecological Applications
- Article date:
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February 1, 2000
- Author:
- NORBY, RICHARD J.
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Copyright informationCOPYRIGHT 2000 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Ecologists who are trying to unravel the response of the terrestrial carbon cycle to rising atmospheric carbon dioxide concentration are faced with overwhelming issues of spatial and temporal scale. The goal is to understand the long-term, cumulative impact of global change on the metabolism of all terrestrial ecosystems, yet it is possible to conduct experiments only on relatively small plots within highly variable ecosystems and over short periods of time. Data from experiments, monitoring programs, and other research must be scaled up to ecosystem, regional, or global levels to describe the response of terrestrial ecosystems to rising [CO.sub.2].
These issues of scale ...
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GAS EXCHANGE, LEAF NITROGEN, AND GROWTH EFFICIENCY OF POPULUS TREMULOIDES...
Ecological Applications;
February 1, 2000 ;
CURTIS, PETER S. VOGEL, CHRISTOPH S. WANG, XIANZHONG PREGITZER, KURT S. ZAK, DONALD R. LUSSENHOP, JOHN KUBISKE, MARK TEERI, JAMES A.;
787 words
......forest responses to rising atmospheric [CO.sub.2] will...growing seasons with Populus tremuloides grown under experimental...will shorten with rising atmospheric [CO.sub.2], but...photosynthesis; Populus tremuloides; respiration...biogeochemical cycles to rising ...
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quaking aspen
Webster's NewWorld Dictionary;
34 words
...Webster's NewWorld Dictionary 01-01-1988 quaking aspen a North American poplar (Populus tremuloides) with small, flat-stemmed leaves that tremble in the lightest breeze Copyright 1994, 1991, 1988 Simon & Schuster, Inc.
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Cryopreservation of Transgenic Populus tremuloides Using a Modified...
In Vitro Cellular & Developmental Biology;
April 1, 2004 ;
Hubscher, S L; Touchell, D H; Tsai, C-J;
234 words
......cryostorage, specifically the simple and low-cost process of vitrification, as a long-term storage system for transgenic aspen (Populus tremuloides) germplasm. Using in vitro cultures, factors such as conditioning media, cryoprotectant solution and preculture duration...
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ATMOSPHERIC [CO.sub.2] AND THE COMPOSITION AND FUNCTION OF SOIL MICROBIAL...
Ecological Applications;
February 1, 2000 ;
ZAK, DONALD R. PREGITZER, KURT S. CURTIS, PETER S. HOLMES, WILLIAM E.;
787 words
......transformations beneath Populus tremuloides Michx. growing under...fatty acids (PFLAs); Populus tremuloides; soil microorganisms...transformations. INTRODUCTION The rising atmospheric-[CO.sub.2] concentration...and N in soil. Whether rising atmospheric [CO.sub.2] will ...
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Optimization of pressing parameters for mechanically surface-densified...
Forest Products Journal;
October 1, 2007 ;
Lamason, Clevan Gong, Meng;
787 words
......the surface properties of aspen (Populus tremuloides Michx.) by mechanical densification...materials for value-added uses. Aspen (Populus tremuloides Michx.), a relatively low-density...amabilis Dougl. Forbes), aspen (Populus tremuloides Michx.), Douglas-fir (Pseudotsuga...
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ASPEN - QUAKING(1 Of 2)
Earth Life Forms;
January 1, 2002 ;
90 words
...Earth Life Forms 01-01-2002 ASPEN - QUAKING Locations: North America - Widespread Quaking Aspen (Populus tremuloides) is found from Maine through the Great Lakes region, and throughout the Rocky Mountains to Alaska. The leaves are from 1-3 inches...
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ASPEN - QUAKING(2 Of 2)
Earth Life Forms;
January 1, 2002 ;
90 words
...Earth Life Forms 01-01-2002 ASPEN - QUAKING Locations: North America - Widespread Quaking Aspen (Populus tremuloides) is found from Maine through the Great Lakes region, and throughout the Rocky Mountains to Alaska. The leaves are from 1-3 inches...
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Rising Atmospheric Carbon Dioxide and Seed Yield of Soybean...
Crop Science;
March 1, 2001 ;
Ziska, Lewis H. Bunce, James A. Caulfield, Frances A.;
787 words
......has been argued that empirical selection for yield will automatically select genotypes that are the most responsive to rising atmospheric [CO.sub.2] (Kimball, 1985). That is, in the future as atmospheric [CO.sub.2] continues to rise, breeders will naturally...
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Differential expression two distinct phenylalanine ammonia-lyase genes in...
Plant Physiology;
October 1, 2002 ;
Kao, Yu-Ying; Harding, Scott A; Tsai, Chung-Jui;
787 words
......phenylpropanoid carbon sinks in tissues of quaking aspen (Populus tremuloides Michx.). Metabolic commitment to each of these sinks varies...ability of rapid-growing tree species like quaking aspen (Populus tremuloides Michx.) to coordinate secondary carbon allocation with...
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Differential substrate inhibition couples kinetically distinct...
Plant Physiology;
February 1, 2002 ;
Harding, Scott A; Leshkevich, Jacqueline; Chiang, Vincent L; Tsai, Chung-Jui;
787 words
......Pt4CL2, have previously been cloned from quaking aspen (Populus tremuloides Michx.), but whether they are catalytically adapted for...Hahlbrock, 1975; Ehlting et al., 1999), including aspen (Populus tremuloides Michx.; Hu et al., 1998), and these isoforms have been...
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Metabolic Profiling of the Sink-to-Source Transition in Developing Leaves...
Plant Physiology;
October 1, 2004 ;
Jeong, Mijeong Lee; Jiang, Hongying; Chen, Huann-Sheng; Tsai, Chung-Jui; Harding, Scott A;
787 words
...Profiles of small polar metabolites from aspen (Populus tremuloides Michx.) leaves spanning the sink-to-source transition...development and in response to stress. Quaking aspen (Populus tremuloides Michx.) is an ecological keystone species, an...
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Structural and Kinetic Basis for Substrate Selectivity in Populus...
Plant Cell;
May 1, 2005 ;
Bomati, Erin K; Noel, Joseph P;
787 words
......structure of sinapyl alcohol dehydrogenase (SAD) from Populus tremuloides (aspen), a member of the NADP(H)-dependent dehydrogenase...2001) reported the identification of an enzyme from Populus tremuloides (aspen) with high sequence similarity to previously characterized...
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INTERACTIVE EFFECTS OF ATMOSPHERIC [CO.sub.2] AND SOIL-N AVAILABILITY ON...
Ecological Applications;
February 1, 2000 ;
PREGITZER, KURT S. ZAK, DONALD R. MAZIASZ, JENNIFER DEFOREST, JARED CURTIS, PETER S. LUSSENHOP, JOHN;
787 words
......CO.sub.2]) and soil-nitrogen (N) availability influence Populus tremuloides fine-root growth and morphology. Soil-N availability may...minirhizotrons; morphology, roots; nitrogen; nutrient cycling; Populus tremuloides; root growth and morphology; soil respiration. INTRODUCTION...
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Crown loss and subsequent branch sprouting of forest trees in response to...
Journal of the Torrey Botanical Society;
April 1, 2004 ;
Brommit, Angela G; Charbonneau, Neil; Contreras, Thomas A; Fahrig, Lenore;
787 words
......ratios, whereas Fagus grandifolia and Populus tremuloides showed exceptionally low ratios...canopy while Fagus grandifolia, Populus tremuloides, and conifer species may become...Ulmus americana, Tilia americana, Populus tremuloides, Populus grandidentata, and Prunus...
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 "Seattle Post-Intelligencer (Seattle, WA)")
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WHY DO ASPENS QUAKE?(Seattle @Home)
Seattle Post-Intelligencer (Seattle, WA);
September 8, 2007 ;
90 words
...When the leaves of quaking aspens (Populus tremuloides) turn yellow in the fall, a slight breeze can turn a stand of trees into quivering gold. Quaking aspens quake because of the way...
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