Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species
The global demand for plant biomass to provide bioenergy and heat is continuously increasing because of a growing interest among many industrialized and developing countries towards climate sound and renewable energy supply. The exacerbation of land-use conflicts proliferates social-ecological deman...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/3/451 |
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| author | Moritz von Cossel Lorena Agra Pereira Iris Lewandowski |
| author_facet | Moritz von Cossel Lorena Agra Pereira Iris Lewandowski |
| author_sort | Moritz von Cossel |
| collection | DOAJ |
| description | The global demand for plant biomass to provide bioenergy and heat is continuously increasing because of a growing interest among many industrialized and developing countries towards climate sound and renewable energy supply. The exacerbation of land-use conflicts proliferates social-ecological demands on future bioenergy cropping systems. Perennial herbaceous wild plant mixtures (WPMs) represent an approach to providing social-ecologically more sustainably produced biogas substrate that has gained increasing public and political interest only in recent years. The focus of this study lies on three perennial wild plant species (WPS) that usually dominate the biomass yield performance of WPM cultivation. These WPS were compared with established biogas crops in terms of their substrate-specific methane yield (SMY) and lignocellulosic composition. The plant samples were investigated in a small-scale mesophilic discontinuous biogas batch test for determining the SMY. All WPS were found to have significantly lower SMY (241.5–248.5 l<sub>N</sub> kgVS<sup>−1</sup>) than maize (337.5 l<sub>N</sub> kgVS<sup>−1</sup>). This was attributed to higher contents of lignin (9.7–12.8% of dry matter) as well as lower contents of hemicellulose (9.9–11.5% of dry matter) in the WPS. Only minor, non-significant differences to cup plant and Virginia mallow were observed. Thus, when planning WPS as a diversification measure in biogas cropping systems, their lower SMY should be considered. |
| first_indexed | 2024-03-09T06:10:19Z |
| format | Article |
| id | doaj.art-4d72ac48ffd0479297d0ecd91517401a |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T06:10:19Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-4d72ac48ffd0479297d0ecd91517401a2023-12-03T11:58:58ZengMDPI AGAgronomy2073-43952021-02-0111345110.3390/agronomy11030451Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant SpeciesMoritz von Cossel0Lorena Agra Pereira1Iris Lewandowski2Biobased Resources in the Bioeconomy (340b), Institute of Crop Science, University of Hohenheim, Fruwirthstr. 23, 70599 Stuttgart, GermanySoil Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, 13418-900 Piracicaba, BrazilBiobased Resources in the Bioeconomy (340b), Institute of Crop Science, University of Hohenheim, Fruwirthstr. 23, 70599 Stuttgart, GermanyThe global demand for plant biomass to provide bioenergy and heat is continuously increasing because of a growing interest among many industrialized and developing countries towards climate sound and renewable energy supply. The exacerbation of land-use conflicts proliferates social-ecological demands on future bioenergy cropping systems. Perennial herbaceous wild plant mixtures (WPMs) represent an approach to providing social-ecologically more sustainably produced biogas substrate that has gained increasing public and political interest only in recent years. The focus of this study lies on three perennial wild plant species (WPS) that usually dominate the biomass yield performance of WPM cultivation. These WPS were compared with established biogas crops in terms of their substrate-specific methane yield (SMY) and lignocellulosic composition. The plant samples were investigated in a small-scale mesophilic discontinuous biogas batch test for determining the SMY. All WPS were found to have significantly lower SMY (241.5–248.5 l<sub>N</sub> kgVS<sup>−1</sup>) than maize (337.5 l<sub>N</sub> kgVS<sup>−1</sup>). This was attributed to higher contents of lignin (9.7–12.8% of dry matter) as well as lower contents of hemicellulose (9.9–11.5% of dry matter) in the WPS. Only minor, non-significant differences to cup plant and Virginia mallow were observed. Thus, when planning WPS as a diversification measure in biogas cropping systems, their lower SMY should be considered.https://www.mdpi.com/2073-4395/11/3/451anaerobic digestion<i>Artemisia vulgaris</i> L.biodiversitybiogas productionbrown knapweed<i>Centaurea nigra</i> L. |
| spellingShingle | Moritz von Cossel Lorena Agra Pereira Iris Lewandowski Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species Agronomy anaerobic digestion <i>Artemisia vulgaris</i> L. biodiversity biogas production brown knapweed <i>Centaurea nigra</i> L. |
| title | Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species |
| title_full | Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species |
| title_fullStr | Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species |
| title_full_unstemmed | Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species |
| title_short | Deciphering Substrate-Specific Methane Yields of Perennial Herbaceous Wild Plant Species |
| title_sort | deciphering substrate specific methane yields of perennial herbaceous wild plant species |
| topic | anaerobic digestion <i>Artemisia vulgaris</i> L. biodiversity biogas production brown knapweed <i>Centaurea nigra</i> L. |
| url | https://www.mdpi.com/2073-4395/11/3/451 |
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