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2008 | 56 | 3 |

Tytuł artykułu

Effects of nutrient availability and competition between two grass species Leymus chinensis [Trin.] Tzvel. and Phragmites communis Trin. on the plant performance


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Leymus chinensis (Trin.) Tzvel., a perennial grass, is a dominant species from arid to semi-arid steppes in northern China and eastern Mongolia. Phragmites communis Trin. is also a perennial grass, and is distributed widely in the world. In the natural grasslands of northeastern China, both species always co-exist as co-dominating species due to their common characteristics such as propagation both by seeds and vegetative reproduction. Replacement series experiments were used to test the effects of nutrient availability and competitive interaction on the growth performance of two clonal plant species. The experimental treatments included five nutrient levels (3.6, 7.2, 10.8, 14.4 and 18.0 kg organic matter per pot, 20 cm diameter and 15 cm deep) and five species proportions (20:0, 16:4, 10:10, 4:16 and 0:20 for L. chinensis and P. communis, respectively) with twenty tillers in total per pot. Each treatment had 10 replications. Growth characteristics including tiller height, tiller number, plant biomass, rhizome length and bud number of plants in monoculture and mixture culture were recorded and compared to examine the effects of nutrient and competitive interaction on the plant performance. The growth of L. chinensis and P. communis in mixture was influenced by the nutrient availability and competition, which depended on the combination between nutrient level and species proportion. The results implied that the intensity of competition should be lower in nutrient-poor habitats when the co-existing species demanded on the same limiting resource. P. communis benefited from coexisting with L. chinensis, especially under nutrient-rich conditions. The aboveground relative yield (RYabove) expressed in units of tiller height, dry biomass and daughter tiller number was recommended as an effective and simple index to predict the relative competitive ability for clonal plants. It was based on the regression for RY above and RYbelow (the belowground relative yield) against RY (relative yield), measured as yield in mixture divided by that in monoculture.








Opis fizyczny



  • Northeast Normal University, Changchun 130024, R.P.China


  • Agrawal A.A. 2001 – Phenotypic plasticity in the interactions and evolution of species – Science, 294: 321–326.
  • Aikio S., Pakkasmaa S. 2003 – Relatedness and competitive asymmetry–implications for growth and population dynamics – Oikos, 100: 283–290.
  • Ba L., Wang D.L., Liu Y., Wang X., Sun W. 2002 – Analysis on competition and coexistence patterns of Leymus chinensis and its main companion species – Chinese J. Appl. Ecol. 13: 50–54.
  • Bengtsson J., Fagerström T., Rydin H. 1994 – Competition and coexistence in plant communities – Trends Ecol. Evol. 9: 246–250.
  • Casper B.B., Jackson R.B. 1997 – Plant competition underground – Annu. Rev. Ecol. Syst. 28: 545–570.
  • Chapin F.S., Schulze E-D., Mooney H.A. 1990 – The ecology and economics of storage in plants – Annu. Rev. Ecol. Syst. 21: 423–47.
  • Cousens R. 2000 – Greenhouse studies of interactions between plants: the flaws are in interpretation rather than design – J. Ecol. 88: 352–353.
  • De Kroon H., Hutchings M.J. 1995 – Morphological plasticity in clonal plants: the foraging concept reconsidered – J. Ecol. 83: 143–152.
  • De Kroon H., Schieving F. 1991 – Resource allocation patterns as a function of clonal morphology: A general model applied to a foraging clonal plant – J. Ecol. 79: 519–530.
  • Ernande B., Dieckmann U. 2004 – The evolution of phenotypic plasticity in spatially structures environments: implications of intraspecific competition, plasticity costs and environmental characteristics – J. Evol. Biol. 17: 613–628.
  • Falster D.S., Westoby M. 2003 – Plant height and evolutionary games – Trends Ecol. Evol. 18: 337–343.
  • Fischer M., Van Kleunen M., Schmid B. 2004 – Experimental life-history evolution: selection on growth form and its plasticity in a clonal plant – J. Evol. Biol. 17: 331–341.
  • Fleming G.F., Young F.L., Ogg Jr. A.G. 1988 – Competitive relationships among winter wheat (Triticum aestivum), jointed goatgrass (Aegilops cylindrica), and downy brome (Bromus tectorum) – Weed Sci. 36: 479–486.
  • Freckleton R.P., Watkinson A.R. 2000 – Designs for greenhouse studies of interactions between plants: an analytical perspective – J. Ecol. 88: 386–391.
  • Gaudet C.L., Keddy P.A. 1988 – A comparative approach to predicting competitive ability from plant traits – Nature, 334: 242–243.
  • Gibson D., Connonlly J., Hartnett D.C., Weidenhamer J.F. 1999 – Designs for greenhouse studies of interactions between plants – J. Ecol. 87: 1–16.
  • Goldberg D.E., Barton A.M. 1992 – Patterns and consequences of interspecific competition in natural communities – a review of field experiments with plants – Am. Nat. 139: 771–801.
  • Grime J.P. 1979 – Plant strategies and vegetation Process – Wiley, London.
  • Harper J.L. 1977 – Mixtures of species. I. Space and proportions (In: Population biology of plants, Ed. J.L. Harper) – Academic Press, New York, pp. 237–276.
  • Herben T., Suzuki J. 2002 – A simulation study of the effects of architectural constraints and resource translocation on population structure and competition in clonal plants – Evol. Ecol. 15: 403–423.
  • Humphery L.D., Pyke D.A. 1998 – Demographic and growth responses in a guerrilla and a phalanx perennial grass in competitive mixture – J. Ecol. 86: 854–865.
  • Jolliffe P.A. 2000 – The replacement series – J. Ecol. 88: 371–385.
  • Keller B.E.M. 2000 – Genetic variation among and within populations of Phragmites australis in the Charles River watershed – Aquat. Bot. 66: 195–208.
  • Li B., Watkinson A. 2000 – Competition along a nutrient gradient: A case study with Daucus carota and Chenopodium album – Ecol. Res. 15: 293–306.
  • Meyer A., Schmid B. 1999 – Experimental demography of rhizome populations of establishing clones of Solidago altissima – J. Ecol. 87: 42–54.
  • Nilsson P., Tuomi J., Åström M.1996 – Bud dormancy as a bet-hedging strategy – Am. Nat. 147: 269-281.
  • Rösch H., Van Rooyen M.W., Theron G.K. 1997 – Predicting competitive interactions between pioneer plant species by using plant traits – J. Veg. Sci. 8: 489–494.
  • Schmid B. 1990 – Some ecological and evolutionary consequences of modular organization and clonal growth in plants – Evol. Tr. Plants, 4: 25–34.
  • Schmitt J., Dudley S.A., Pigliucci M. 1999 – Manipulative approaches to testing adaptive plasticity: Phytochrome-mediated shade – avoidance response in plants – Am. Nat. 154: S43–S54.
  • Silverton J., Gordon D. 1989 – A framework for plant behavior – Annu. Rev. Ecol. Syst. 20: 349–366.
  • Silvertown J., Charlesworth D. 2001 – Introduction to plant population biology (Forth edition) – Blackwell Science Ltd., Great Britain, pp. 290–294.
  • Song M.H., Dong M. 2002 – Importance of clonal plants in community – Acta Ecol. Sin. 22: 1961–1967.
  • Tilman D. 1988 – Plant strategy and the dynamics and structure of plant communities – Princeton University Press, Princeton.
  • Tilman D. 1994 – Competition and biodiversity in spatially structured habitats – Ecology, 75: 2–16.
  • Twolan-Strutt L., Keddy P.A. 1996 – Above- and belowground competition intensity in two contrasting wetland plant communities – Ecology, 77(10): 259–270.
  • Weigelt A., Jolliffe P. 2003 – Indices of plant competition – J. Ecol. 91: 707–720.
  • Weiner J. 1990 – Asymmetric competition in plant populations – Trends Ecol. Evol. 5: 360–364.
  • Weiner J., Thomas S.C. 1992 – Competition and allometry in three species of annual plants – Ecology, 73: 648–656.
  • Wetzel P.R., van der Valk A.G. 1998 – Effects of nutrient and soil moisture on competition between Carex stricta, Phalaris arundinacea, and Typha latifolia – Plant Ecology, 138: 179–190.
  • Williams A.C., Mccarthy B.C. 2001 – A new index of interspecific competition for replacement and additive designs – Ecol. Res. 16: 29–40.
  • Wilson S.D., Tilman D. 1991 – Components of plant competition along an experimental gradient of nitrogen availability – Ecology, 72: 1050–1065.
  • Wilson S.D., Tilman D. 1993 – Plant competition and resource availability in response to disturbance and fertilization – Ecology, 74: 599–611.
  • Yang Y.F., Lang H.Q. 1998 – A study of population regulation of Phragmites communis as a clonal plant in different ecological conditions – Acta Prata. Sin. 7: 1–9.
  • Yang Y.F., Zheng H.Y., Li J.D. 1998 – Comparison of age structures of the tillers in the Leymus chinensis population, a clonal grass species under different ecological conditions – Acta Ecol. Sin. 18: 302–308.
  • Zheng H.Y., Li J.D. 1999 – Halohyte and the restoration of saline-alkali grasslands on the Songnen Plains – Academic Press, Beijing, pp. 84–132.
  • Zhu T.C. 1993 – Grasslands of china (In: Natural grasslands, ecosystems of the world, Ed. R.T. Coupland) – Elsevier Science Press, Amsterdam, pp. 61–82.

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