Release and uptake of minerals during decomposition of plant litter in fishpond littoral
Tóm tắt
Changes in chemical composition of autochthonous plant litter undergoing decomposition in litter mesh-bags exposed in a transect across four vegetational zones of a fishpond littoral were estimated during the spring, summer and winter season. The highest decomposition rate was found in all four zones in spring, the lowest one in winter. The decomposition was faster in the two aquatic than in the two terrestrial zones in the spring and the summer season. The litter was enriched with nitrogen and released potassium in all locelities and seasons. The uptake or release of other mineral constituents appeared to be specific for each zone and to depend on the season of the year.
Tài liệu tham khảo
Biederbeck V. O., Paul E. A., Lowe W. E., Shields J. A. etWillard J. R. (1974): Soil microorganisms.—Matador Project Report 39, University of Saskatchewan, Saskatoon.
Coleman D. C. etSasson A. (1980): Decomposer subsystem.—In:Breymeyer A. I. etvan Dyne G. M.: Grasslands, systems analysis and man, p. 609–658.—Cambridge University Press, Cambridge.
Dykyjová D. etKvět J. (1978): Pond littoral ecosystems.—Springer Verlag, Berlin, Heidelberg, New York.
Gilbert O. etBocock K. L. (1960): Plant litter decomposition.—J. Soil Sci., London, 11: 10 to 19.
Hejný S. (1960): Ökologische Charakteristik der Wasser- und Sumpfpflanzen in den slowakischen Tiefebenen.—Bratislava.
Jackson M. L. (1962): Soil chemical analysis.—Constable, London.
Květ J. et al. (1973): Littoral of the Nesyt fishpond.—Studie ČSAV, Praha, 1975/15.
Úlehlová B. (1976): Microbial decomposers and decomposition processes in wetlands.—Studie ČSAV, Praha, 1976/17.
Úlehlová B. (1983): Rozkladači, rozkladné procesy a minerální koloběhy v travních ekosystémech.—DrSc. thesis, UEFT ČSAV, Brno.
Úlehlová B. etVašulková E. (1977): The role of microflora in the decomposition of plant resdues in the fishpond littoral zone.—In:Szegi J. (ed.): Soil biology and conservation of the biosphere, p. 121–128.—Akademia kiadó, Budapest.
Wetzel R. G. (1975): Limnology.—W.B. Saunders Company, Philadelphia, London, Toronto.