Biomethane Yield from Different European Phragmites australis Genotypes, Compared with Other Herbaceous Wetland Species Grown at Different Fertilization Regimes

Franziska Eller, Per Magnus Ehde, Claudia Oehmke, Linjing Ren, Hans Brix, Brian K. Sorrell and Stefan E. B. Weisner
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Franziska Eller: Department of Biology, Aarhus University, Ole Worms Alle 1, 8000 Aarhus C, Denmark
Per Magnus Ehde: Rydberg Laboratory for Applied Sciences, Halmstad University, 301 18 Halmstad, Sweden
Claudia Oehmke: Institute of Botany and Landscape Ecology, Partner in the Greifswald Mire Center, University of Greifswald, Soldmannstrasse 15, 17487 Germany
Linjing Ren: Department of Biology, Aarhus University, Ole Worms Alle 1, 8000 Aarhus C, Denmark
Hans Brix: Department of Biology, Aarhus University, Ole Worms Alle 1, 8000 Aarhus C, Denmark
Brian K. Sorrell: Department of Biology, Aarhus University, Ole Worms Alle 1, 8000 Aarhus C, Denmark
Stefan E. B. Weisner: Rydberg Laboratory for Applied Sciences, Halmstad University, 301 18 Halmstad, Sweden

Resources, 2020, vol. 9, issue 5, 1-14

Abstract: Phragmites australis , Typha latifolia , T. angustifolia and Arundo donax are tall wetland graminoids with the potential to replace fossil fuels under sustainable cultivation conditions. We investigated the biomethane (CH 4 ) production of these four species, including four different genotypes of P. australis , which represent the high intraspecific diversity of European reed. All plants were grown under three different macronutrient supplies (no nutrients added, an equivalent of 75 kg N ha −1 year −1 added and an equivalent of 500 kg N ha −1 year −1 added). Biomethane production was measured in four independent batch digestion tests. Across all experiments, fertilization regime had little effect on CH 4 yield, which was on average 222 ± 31 L kg −1 volatile solids (VS). The lowest yield was produced by T. angustifolia (140 L kg VS −1 ) receiving no nutrients, while the highest yield was produced by A. donax (305 L kg VS −1 ) in the highest nutrient treatment. The intraspecific diversity of P. australis did not affect biomethane production. All P. australis genotypes produced on average 226 ± 19 L CH 4 kg VS −1 , which, although high, was still lower than conventional biogas species. The biomass production of P. australis was less increased by fertilization than that of Typha sp. and A. donax , but all species had similar biomass without fertilization.

Keywords: Arundo donax; biogas; paludiculture; pretreatment; sustainable agriculture Typha angustifolia; Typha latifolia (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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