Impact of poplar on soil organic matter quality and microbial communities in arable soils
Poplars grown in short rotation coppice on agricultural land are a promising bioenergy crop. This study aimed to evaluate the soil organic matter (SOM) quality and viable microbial consortium under six-years-old poplar (Populus maximowiczii) and under wheat (Triticum aestivum) at a test site in cent...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2013-03-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201303-0001_impact-of-poplar-on-soil-organic-matter-quality-and-microbial-communities-in-arable-soils.php |
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| author | C. Baum K.-U. Eckhardt J. Hahn M. Weih I. Dimitriou P. Leinweber |
| author_facet | C. Baum K.-U. Eckhardt J. Hahn M. Weih I. Dimitriou P. Leinweber |
| author_sort | C. Baum |
| collection | DOAJ |
| description | Poplars grown in short rotation coppice on agricultural land are a promising bioenergy crop. This study aimed to evaluate the soil organic matter (SOM) quality and viable microbial consortium under six-years-old poplar (Populus maximowiczii) and under wheat (Triticum aestivum) at a test site in central Germany. The SOM molecular composition and stability was determined by pyrolysis-field ionization mass spectrometry (Py-FIMS). The microbial consortium was assessed in terms of microbial phospholipid fatty acid (PLFA) profiles. Py-FIMS and the PLFAs agreed in showing crop-specific differences in the SOM quality and in the associated microbial communities. Higher proportions of carbohydrates, long-chained fatty acids, sterols and suberins at the expense of N-containing compounds under poplar than under wheat were associated with lower concentrations of microbial PLFAs in the organic matter. A higher ratio of total fungal to bacterial (f/b) PLFAs, a lower ratio of Gram-positive to Gram-negative bacterial PLFAs and lower biomass of arbuscular mycorrhizal fungi in the organic matter were revealed under poplar than under wheat. Lower N- and increased C-availability in the SOM promoted fungal vs. bacterial colonization, increased the SOM stability by a lower decomposability and caused SOM accumulation under poplar. |
| first_indexed | 2024-04-10T08:10:52Z |
| format | Article |
| id | doaj.art-7098c6f613434a31abf086f50e1e6f94 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:10:52Z |
| publishDate | 2013-03-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-7098c6f613434a31abf086f50e1e6f942023-02-23T03:46:00ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682013-03-015939510010.17221/548/2012-PSEpse-201303-0001Impact of poplar on soil organic matter quality and microbial communities in arable soilsC. Baum0K.-U. Eckhardt1J. Hahn2M. Weih3I. Dimitriou4P. Leinweber5SoilScience, Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, GermanySoilScience, Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, GermanyLandscape Ecology and Site Evaluation, Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, GermanyDepartment of Crop Production Ecology, Swedish University of Agricultural Sciences,Department of Crop Production Ecology, Swedish University of Agricultural Sciences,SoilScience, Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, GermanyPoplars grown in short rotation coppice on agricultural land are a promising bioenergy crop. This study aimed to evaluate the soil organic matter (SOM) quality and viable microbial consortium under six-years-old poplar (Populus maximowiczii) and under wheat (Triticum aestivum) at a test site in central Germany. The SOM molecular composition and stability was determined by pyrolysis-field ionization mass spectrometry (Py-FIMS). The microbial consortium was assessed in terms of microbial phospholipid fatty acid (PLFA) profiles. Py-FIMS and the PLFAs agreed in showing crop-specific differences in the SOM quality and in the associated microbial communities. Higher proportions of carbohydrates, long-chained fatty acids, sterols and suberins at the expense of N-containing compounds under poplar than under wheat were associated with lower concentrations of microbial PLFAs in the organic matter. A higher ratio of total fungal to bacterial (f/b) PLFAs, a lower ratio of Gram-positive to Gram-negative bacterial PLFAs and lower biomass of arbuscular mycorrhizal fungi in the organic matter were revealed under poplar than under wheat. Lower N- and increased C-availability in the SOM promoted fungal vs. bacterial colonization, increased the SOM stability by a lower decomposability and caused SOM accumulation under poplar.https://pse.agriculturejournals.cz/artkey/pse-201303-0001_impact-of-poplar-on-soil-organic-matter-quality-and-microbial-communities-in-arable-soils.phpbioenergysoil carbon storagephospholipid fatty acid profilespopulusshort rotation coppice |
| spellingShingle | C. Baum K.-U. Eckhardt J. Hahn M. Weih I. Dimitriou P. Leinweber Impact of poplar on soil organic matter quality and microbial communities in arable soils Plant, Soil and Environment bioenergy soil carbon storage phospholipid fatty acid profiles populus short rotation coppice |
| title | Impact of poplar on soil organic matter quality and microbial communities in arable soils |
| title_full | Impact of poplar on soil organic matter quality and microbial communities in arable soils |
| title_fullStr | Impact of poplar on soil organic matter quality and microbial communities in arable soils |
| title_full_unstemmed | Impact of poplar on soil organic matter quality and microbial communities in arable soils |
| title_short | Impact of poplar on soil organic matter quality and microbial communities in arable soils |
| title_sort | impact of poplar on soil organic matter quality and microbial communities in arable soils |
| topic | bioenergy soil carbon storage phospholipid fatty acid profiles populus short rotation coppice |
| url | https://pse.agriculturejournals.cz/artkey/pse-201303-0001_impact-of-poplar-on-soil-organic-matter-quality-and-microbial-communities-in-arable-soils.php |
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