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Plant Biol (Stuttg) 2002; 4(2): 153-158
DOI: 10.1055/s-2002-25729
Review Article
Georg Thieme Verlag Stuttgart ·New York

Quantifying Competitiveness in Woody Plants

T. E. E. Grams 1,2 , A. R. Kozovits 1 , I. M. Reiter 1 , J. Barbro Winkler 3 , M. Sommerkorn 3 , H. Blaschke 1 , K.-H. Häberle 1 , R. Matyssek 1
  • 1 Forest Botany, Department of Ecology, Technische Universität München, Freising, Germany
  • 2 present address: Department of Integrative Biology, University of California, Berkeley CA 94720, USA
  • 3 Institute of Soil Ecology, Phytotron Unit, GSF-National Research Center for Environment and Health, Neuherberg, Germany
Further Information

Publication History

May 25, 2001

October 9, 2001

Publication Date:
26 April 2002 (online)

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Abstract

A concept is presented for analysing and quantifying the competitiveness of woody plants. Efficiency ratios are defined that relate resource investments and gains to above- and belowground space sequestration. Such efficiencies are exemplified in comparisons between young and mature trees of European beech (Fagus sylvatica) and Norway spruce (Picea abies), resulting in remarkable consistencies across plant age and species. The demonstration extends to assessments of the inter- and intra-specific competition between young beech and spruce plants in a phytotron study, using CO2/O3 regimes as disturbants for examining the sensitivity of the efficiency ratios. In mixed plantations, the growth of spruce was enhanced and that of beech reduced as compared with the corresponding monocultures. This effect related to a high efficiency of spruce in aboveground space sequestration per resource investment, whereas the efficiency in carbon gain (return per unit of crown volume) was of minor importance. In contrast, beech displayed advantages in belowground space sequestration. However, competitiveness of young trees was hardly affected by the applied CO2/O3 treatments. The concept proves to be adequate for quantitatively comparing competitiveness across species, age and growth conditions. One further efficiency ratio, i.e., volume-related respiratory and transpiratory costs for sustaining functionality in resource sequestration, deserves attention in achieving a mechanistic understanding of competitive behaviour, in particular, in woody plants.

Abbreviations

DW: dry weight

Jmax: maximum electron transport rate

SRL: specific fine root length

Vcmax: maximum carboxylation velocity of ribulose bisphosphate carboxylase

ΦCO2 : quantum yield of CO2 gas exchange

Key words

Competition - European beech (Fagus sylvatica) - maintenance costs - Norway spruce (Picea abies) - ontogenetic scaling - resource gain - space sequestration

References

  • 01 Bazzaz,  F. A.. (1996) Plants in changing environments: linking physiological, population and community ecology. Cambridge; Cambridge University Press
    Google Scholar
  • 02 Bentson,  G. M., and Wayne,  P. M.. (2000);  Characterizing the size-dependence of resource acquisition within crowded plant populations.  Ecology. 81 1072-1085
    Google Scholar
  • 03 Bond,  B. J.. (2000);  Age-related changes in photosynthesis of woody plants.  Trends in Plant Science. 5 349-353
    Google Scholar
  • 04 Conolly,  J.,, Wayne,  P.,, and Bazzaz,  F. A.. (2001);  Interspecific competition in plants: how well do current methods answer fundamental questions?.  American Naturalist. 157 107-125
    Google Scholar
  • 05 Ellenberg,  H.. (1996) Vegetation Mitteleuropas mit den Alpen, 5. Auflage. Stuttgart; Ulmer Verlag
    Google Scholar
  • 06 Falge,  E.,, Graber,  W.,, Siegwolf,  R.,, and Tenhunen,  J. D.. (1996);  A model of gas exchange response of Picea abies to habitat conditions.  Trees - Structure and Function. 10 227-287
    Google Scholar
  • 07 Grace,  J. B., and Tilman,  D.. (1990) Perspectives on plant competition. San Diego; Academic Press
    Google Scholar
  • 08 Grams,  T. E. E.,, Anegg,  S.,, Häberle,  K. H.,, Langebartels,  C.,, and Matyssek,  R.. (1999);  Interactions of chronic exposure to elevated CO2 and O3 levels in the photosynthetic light and dark reactions of European beech (Fagus sylvatica). .  New Phytologist. 144 95-107
    Google Scholar
  • 09 Hubbard,  R. M.,, Ryan,  M. G.,, Stiller,  V.,, and Sperry,  J. S.. (2001);  Stomatal conductance and photosynthesis vary linearly with plant hydraulic conductance in ponderosa pine.  Plant, Cell and Environment. 24 113-121
    Google Scholar
  • 10 Huber-Sannwald,  E.,, Pyke,  D. A.,, and Caldwell,  M. M.. (1996);  Morphological plasticity following species-species recognition and competition between two perennial grasses.  American Journal of Botany. 83 919-932
    PubMedGoogle Scholar
  • 11 Huber-Sannwald,  E.,, Pyke,  D. A.,, and Caldwell,  M. M.. (1997);  Perception of neighbouring plants by rhizomes and roots: morphological manifestations of clonal plant.  Canadian Journal of Botany. 75 2146-2157
    PubMedGoogle Scholar
  • 12 Keddy,  P. A.. (1989) Competition. London; Chapman & Hall
    Google Scholar
  • 13 Kreutzer,  K.,, Göttlein,  A.,, Pröbstle,  P.,, and Zuleger,  M.. (1991) Höglwaldforschung 1982 - 1989. Zielsetzung, Versuchskonzept, Basisdaten. Forstwissenschaftliche Forschungen, Ökosystemforschung Höglwald: Auswirkungen von saurer Beregnung und Kalkung in einem Fichtenaltbestand. Kreutzer, K. and Göttlein, A., eds. Hamburg, Berlin; Paul Parey Verlag pp. 11-22
    Google Scholar
  • 14 Küppers,  M.. (1984);  Carbon relations and competition between woody species in a Central European hedgerow. III. Carbon and water balance on the leaf level.  Oecologia. 65 94-100
    CrossrefPubMedGoogle Scholar
  • 15 Küppers,  M.. (1985);  Carbon relations and competition between woody species in a Central European hedgerow. IV. Growth form and partitioning.  Oecologia. 66 343-352
    CrossrefPubMedGoogle Scholar
  • 16 Küppers,  M.. (1989);  Ecological significance of above-ground architectural patterns in woody plants - a question of cost-benefit relationships.  Trends in Ecology and Evolution. 4 375-379
    CrossrefPubMedGoogle Scholar
  • 17 Küppers,  M.. (1994) Canopy gaps: competitive light interception and economic space filling - a matter of whole-plant allocation. Exploitation of environmental heterogeneity by plants - ecophysiological processes above and below-ground. Caldwell, M. M. and Pearcy, R. W., eds. San Diego; Academic Press pp. 111-144
    Google Scholar
  • 18 Lippert,  M.,, Häberle,  K.-H.,, Steiner,  K.,, Payer,  H.-D.,, and Rehfuess,  K. E.. (1996);  Interactive effects of elevated CO2 and O3 on photosynthesis and biomass production of clonal 5-year-old Norway spruce [Picea abies (L) Karst] under different nitrogen nutrition and irrigation treatments:.  Trees - Structure and Function. 10 382-392
    PubMedGoogle Scholar
  • 19 Matyssek,  R., and Schulze,  E.-D.. (1987);  Heterosis in hybrid larch (Larix decidua x leptolepis) II. Growth characteristics.  Trees - Structure and Function. 1 225-231
    PubMedGoogle Scholar
  • 20 Matyssek,  R., and Schulze,  E.-D.. (1988);  Carbon uptake and respiration in above-ground parts of a Larix decidua × leptolepis tree.  Trees - Structure and Function. 2 233-241
    PubMedGoogle Scholar
  • 21 Mooney,  H. A., and Winner,  W. E.. (1991) Partitioning response of plants to stress. Response of plants to multiple stresses. Mooney, H. A., Winner, W. E., and Pell, E. J., eds. San Diego; Academic Press pp. 129-141
    Google Scholar
  • 22 Payer,  H.-D.,, Blodow,  P.,, Köfferlein,  M.,, Lippert,  M.,, Schmolke,  W.,, Seckmeyer,  G.,, Seidlitz,  H.,, Strube,  D.,, and Thiel,  S.. (1993) Controlled environment chambers for experimental studies on plant responses to CO2 and interactions with pollutants. Design and execution of experiments on CO2 enrichment. Schulze, E.-D. and Mooney, H. A., eds. Brussels; Commission European Communities pp. 127-145
    Google Scholar
  • 23 Pretzsch,  H.,, Kahn,  M.,, and Grote,  R.. (1998);  Die Fichten-Buchen-Mischbestände des Sonderforschungsbereiches “Wachstum oder Parasitenabwehr?” im Kranzberger Forst.  Forstwissenschaftliches Centralblatt. 117 241-257
    PubMedGoogle Scholar
  • 24 Reekie,  E. G., and Bazzaz,  F. A.. (1989);  Competition and patterns of resource use among seedlings of five tropical trees grown at ambient and elevated CO2.  Oecologia. 79 212-222
    CrossrefPubMedGoogle Scholar
  • 25 Reitmayer,  H.. (2000) Quantifizierung des spektralen Angebotes photosynthetisch aktiver Strahlung (PAR) innerhalb eines Fichten/Buchen-Mischbestandes - Entwicklung und Aufbau eines Vielkanalmeßsystems zur Erfassung des Sonnenspektrums im Wellenlängenbereich von 400 bis 850 nm. Universität München; Doctoral Thesis
    Google Scholar
  • 26 Reitmayer,  H.,, Werner,  H.,, and Fabian,  P.. (2002);  A novel system for spectral analysis of solar radiation within a mixed beech-spruce stand.  Plant Biology. 4 159-164
    Article in Thieme ConnectPubMedGoogle Scholar
  • 27 Roloff,  A.. (1988);  Morphologie der Kronenentwicklung von Fagus sylvatica L. (Rotbuche) unter besonderer Berücksichtigung neuartiger Veränderungen: II. Strategie der Luftraumeroberung und Veränderungen durch Umwelteinflüsse.  Flora. 180 297-338
    PubMedGoogle Scholar
  • 28 Ryan,  M. G.,, Binkley,  D.,, and Fownes,  J. H.. (1997);  Age-related decline in forest productivity: pattern and process.  Advances in Ecological Research. 27 213-262
    PubMedGoogle Scholar
  • 29 Schulze,  E. D.,, Küppers,  M.,, and Matyssek,  R.. (1986) The roles of carbon balance and branching pattern in the growth of woody species. On the economy of plant form and function. Givnish, T. J., ed. Cambridge; Cambridge University Press pp. 585-602
    Google Scholar
  • 30 Schwinning,  S.. (1996);  Decomposition analysis of competitive symmetry and size structure dynamics.  Annals of Botany. 77 47-57
    CrossrefPubMedGoogle Scholar
  • 31 Schwinning,  S., and Weiner,  J.. (1998);  Mechanisms determining the degree of size asymmetry in competition among plants.  Oecologia. 113 447-455
    CrossrefPubMedGoogle Scholar
  • 32 Tilman,  D.. (1987);  The importance of the mechanisms of interspecific competition.  American Naturalist. 129 769-774
    CrossrefPubMedGoogle Scholar
  • 33 Thiel,  S.,, Döhring,  T.,, Köfferlein,  M.,, Kosak,  A.,, Martin,  P.,, and Seidlitz,  H. K.. (1996);  A phytotron for plant stress research: how far can artificial lighting compare to natural sunlight?.  Journal of Plant Physiology. 148 456-463
    PubMedGoogle Scholar
  • 34 Tremmel,  D. C., and Bazzaz,  F. A.. (1995);  Plant architecture and allocation in different neighborhoods - implications for competitive success.  Ecology. 76 262-271
    PubMedGoogle Scholar
  • 35 von Caemmerer,  S., and Farquhar,  G. H.. (1981);  Some relationships between the biochemistry of photosynthesis and the gas exchange of leaves.  Planta. 153 376-387
    CrossrefPubMedGoogle Scholar
  • 36 Waring,  R. H., and Schlesinger,  W. H.. (1985) Forest Ecosystems, Concepts and Management. San Diego; Academic Press pp. 340
    Google Scholar

R. Matyssek

Forest Botany
Department of Ecology
Technische Universität München

Am Hochanger 13
85354 Freising
Germany

Email: matyssek@bot.forst.tu-muenchen.de

Section Editor: H. Rennenberg

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