The Korean Journal of Ecology

The Ecological Society of Korea (한국생태학회)
권호 표지

Mass Loss and Changes of Nutrients during Decomposition of Phragmites communis at the Fringe of Stream

  • Published : 2000.04.01
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Abstract

Mass loss and changes of mineral nutrients during decomposition of Phragmites communis for 13 months from November 1998 to December 1999, were investigated at the fringe of stream at Boryeong, Chungnam Province in Korea. Plant materials, which were collected in November 1998. were divided into leaves, culms and rhizomes. Litterbags, 15${\times}$15 cm, were made of nylon mesh with 2-mm$^2$ holes. At 13 months after installation, remaining mass of leaves, culms and rhizomes was 29.0%, 57.4%, 20.6%, respectively. Mass loss rate of the culms was significantly lower than those of the leaves and rhizomes. The decay rate of leaves, culms and rhizomes was 1.21. 0.42 and 1.48 per year, respectively. Initial concentration of N, P, K, Ca and Mg of leaves. culms and rhizomes was 22.5, 9.0, 15.5 mg/g for N, 0.34. 0.10, 0.33 mg/g for P, 15.0, 12.5. 12.3 mg/g for K, 2.84. 0.80, 0.03 mg/g for Ca. 1.94. 0.97, 0.40 mg/g for Mg, respectively. Concentrations of nutrients were higher in leaves than in culms and rhizomes. Except for N and Mg in rhizomes, there was no immobilization period during the decomposition. In the case of remaining K and Ca, most are lost during the first 3 months. Without any suitable method for removal of dead part, eutrophication of freshwater may be accelerated by dead macrophytes.

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References

  1. Chemical analysis of ecological materials Allen,S.E.;J.A.Parkinson;H.M.Grimshaw;C.Quaramby
  2. Arch. Hydrobiol. v.84 Effects of nutrient level on the decomposition of Phragmites communis Trin Andersen,F.O.
  3. Oikos v.38 Nitrogen level and decomposition in Scots pine needle litter Berg,B.;B.Wessen;G.Ekbohm
  4. Arch. Hydrobiol. v.66 Losses of mineral nutrients during decomposition of Typha latifolia Boyd,C.E.
  5. Ecology v.58 Decomposition and nutrient exchange of litter in an alluvial swamp forest Brinson,M.M.
  6. Annu. Rev. Ecol. Syst. v.12 Primary productivity, decomposition and consumer activity in freshwater wetlands Brinson,M.M.;A.E.Lugo;S.Brown
  7. Ecology v.61 Enrichment of Lake Wingra, Wisconsin, by submersed macrophyte decay Carpenter,S.R.
  8. Freshwater wetlands Decomposition in northern wetlands Chamie,J.P.;C.J.Ricardson;R.E.Good(ed.);D.F.Whigham(ed.);R.L.Simpson(ed.)
  9. Can. J. Bot. v.56 The decomposition of standing and fallen litter of Typha glauca and Scirpus fluviatilis Davis,C.B.;A.G.van der Valk
  10. Pond littoral ecosystems Dykyjova,D.;J.Kvet
  11. Encyclopedia of environmental biology Water quality improvement functions of wetlands Hammer,D.A.;W.A.Nierenberg(ed.)
  12. Pol. Arch. Hydrobiol. v.20 Aspects of energy flow by different food chains in a reed-bed. A review Imhof.G.
  13. J. of Ecol. v.63 Production, nutrient content and decomposition of Phragmites communis Trin. and Typha angustifolia L. Mason,C.F.;R.J.Bryant
  14. Pol. Arch. Hydrobiol. v.17 Elution of mineral components out of dead reed Phragmites communis Trin Planter,M.
  15. Arch. Hydrobiol. v.94 Processes contributing to the decay do reed (Phragmites australis) litter in fresh water Polunin,N.V.C.
  16. Advances in Ecological Research v.14 The decomposition of emergent macrophytes in fresh water Polunin,N.V.C.
  17. Ecology v.53 Relationships between cell-wall fractions, nitrogen, and standing crop in aquatic macrophytes Polisini,J.M.;C.E.Boyd