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Publication Date
1977
Description
Primary production, production processes, and decomposition have been studied in alluvial meadow ecosystems for 6 years. Water has been found to be the decisive factor in the energy flow and mineral elements turnover. The quality and quantity of production and decomposition processes depend on the occurrence and duration o( floods. Permanent pool of underground biomass in Alopecurus pratensis stand makes 45.3 %, permanent pool of shoot biomass makes 54.7 % of the total biomass. 19.4 % of the total biomass is taken off as forage. 11. 7 % of shoot biomass is decomposed during the summer season, and 3 .1 % in winter, 15 .1 % of biomass is estimated to be the annual root production and decomposition. Ecosystems on elevated sites which are not influenced by flood water show a lower primary production. The efficiency of solar energy conversion is 1.07 to 1.56 % in flooded stands, while the elevated ones reach about half as much only. A static model of the ecosystem showing biomass turnover is appended.
Citation
Rychnovska, Milena; Ulehlova, Blanka; Jakrlova, Jana; and Tesrova, Marta, "Biomass budget and energy flow in alluvial meadow ecosystem" (1977). IGC Proceedings (1977-2023). 3.
(URL: https://uknowledge.uky.edu/igc/1977/sess3/3)
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Biomass budget and energy flow in alluvial meadow ecosystem
Primary production, production processes, and decomposition have been studied in alluvial meadow ecosystems for 6 years. Water has been found to be the decisive factor in the energy flow and mineral elements turnover. The quality and quantity of production and decomposition processes depend on the occurrence and duration o( floods. Permanent pool of underground biomass in Alopecurus pratensis stand makes 45.3 %, permanent pool of shoot biomass makes 54.7 % of the total biomass. 19.4 % of the total biomass is taken off as forage. 11. 7 % of shoot biomass is decomposed during the summer season, and 3 .1 % in winter, 15 .1 % of biomass is estimated to be the annual root production and decomposition. Ecosystems on elevated sites which are not influenced by flood water show a lower primary production. The efficiency of solar energy conversion is 1.07 to 1.56 % in flooded stands, while the elevated ones reach about half as much only. A static model of the ecosystem showing biomass turnover is appended.
