Growth substrates change the decomposition process of eelgrass in water bodies
Abstract Decomposition of submerged plants releases organic matter, nitrogen, and phosphorus into water bodies, generating an important impact on the aquatic ecosystem. This study explored the influence of growth substrate with different compositions on the decomposition process of eelgrass (Vallisn...
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SpringerOpen
2024-12-01
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| Series: | Environmental Sciences Europe |
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| Online Access: | https://doi.org/10.1186/s12302-024-01033-1 |
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| author | Wen Wang Enqi Liu Chunzhen Fan Min Zhao Zhiquan Wang Zhan Jin Ke Bei Xiangyong Zheng Suqing Wu Ye Tang Chang Yang |
| author_facet | Wen Wang Enqi Liu Chunzhen Fan Min Zhao Zhiquan Wang Zhan Jin Ke Bei Xiangyong Zheng Suqing Wu Ye Tang Chang Yang |
| author_sort | Wen Wang |
| collection | DOAJ |
| description | Abstract Decomposition of submerged plants releases organic matter, nitrogen, and phosphorus into water bodies, generating an important impact on the aquatic ecosystem. This study explored the influence of growth substrate with different compositions on the decomposition process of eelgrass (Vallisneria spinulosa Yan, V. spinulosa Yan). The sediment + iron–carbon fillers system exhibited significantly lower concentrations of total nitrogen (TN) and total phosphorus (TP) in the overlying water than other systems, with the maximum values of 5.68 and 7.05 mg/L, respectively. The addition of ceramic and calcium nitrate promoted the formation of HCl-extracted phosphorus (HCl–P) in the sediment, while the addition of iron–carbon fillers increased the content of NaOH-extracted phosphorus (NaOH–P). Three-dimensional fluorescence spectroscopy of dissolved organic matter (DOM) in overlying water showed that different substrate compositions did not significantly affect the compositions of organic matter released during the decomposition of V. spinulosa Yan. The microbial community and abundance in each experimental group changed significantly before and after the decomposition of V. spinulosa Yan. The sediment + iron–carbon fillers system showed significantly higher abundance of microbial community than other systems, with the enrichment of functional bacteria related to denitrification and sulfate reduction. In contrast, the sediment + calcium nitrate system exhibited a smaller change of microbial community abundance, with the enrichment of aerobic denitrifying bacteria. In this paper, it was found that the sediment + iron–carbon group had a good adsorption effect on nitrogen and phosphorus released during the decomposition process of V. spinulosa Yan, and had a good effect on water purification as the growth substrate of submerged plants. |
| format | Article |
| id | doaj-art-2bd6675a3bc348d98bbb8bc163c9d69a |
| institution | OA Journals |
| issn | 2190-4715 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Environmental Sciences Europe |
| spelling | doaj-art-2bd6675a3bc348d98bbb8bc163c9d69a2025-08-20T01:57:15ZengSpringerOpenEnvironmental Sciences Europe2190-47152024-12-0136111710.1186/s12302-024-01033-1Growth substrates change the decomposition process of eelgrass in water bodiesWen Wang0Enqi Liu1Chunzhen Fan2Min Zhao3Zhiquan Wang4Zhan Jin5Ke Bei6Xiangyong Zheng7Suqing Wu8Ye Tang9Chang Yang10College of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityCollege of Life and Environmental Science, Wenzhou UniversityWenzhou Municipal Motor Vehicle Exhaust Pollution Prevention and Control Management CenterAbstract Decomposition of submerged plants releases organic matter, nitrogen, and phosphorus into water bodies, generating an important impact on the aquatic ecosystem. This study explored the influence of growth substrate with different compositions on the decomposition process of eelgrass (Vallisneria spinulosa Yan, V. spinulosa Yan). The sediment + iron–carbon fillers system exhibited significantly lower concentrations of total nitrogen (TN) and total phosphorus (TP) in the overlying water than other systems, with the maximum values of 5.68 and 7.05 mg/L, respectively. The addition of ceramic and calcium nitrate promoted the formation of HCl-extracted phosphorus (HCl–P) in the sediment, while the addition of iron–carbon fillers increased the content of NaOH-extracted phosphorus (NaOH–P). Three-dimensional fluorescence spectroscopy of dissolved organic matter (DOM) in overlying water showed that different substrate compositions did not significantly affect the compositions of organic matter released during the decomposition of V. spinulosa Yan. The microbial community and abundance in each experimental group changed significantly before and after the decomposition of V. spinulosa Yan. The sediment + iron–carbon fillers system showed significantly higher abundance of microbial community than other systems, with the enrichment of functional bacteria related to denitrification and sulfate reduction. In contrast, the sediment + calcium nitrate system exhibited a smaller change of microbial community abundance, with the enrichment of aerobic denitrifying bacteria. In this paper, it was found that the sediment + iron–carbon group had a good adsorption effect on nitrogen and phosphorus released during the decomposition process of V. spinulosa Yan, and had a good effect on water purification as the growth substrate of submerged plants.https://doi.org/10.1186/s12302-024-01033-1Vallisneria spinulosa YanDecompositionSubstrate compositionsDOMMicroorganisms |
| spellingShingle | Wen Wang Enqi Liu Chunzhen Fan Min Zhao Zhiquan Wang Zhan Jin Ke Bei Xiangyong Zheng Suqing Wu Ye Tang Chang Yang Growth substrates change the decomposition process of eelgrass in water bodies Environmental Sciences Europe Vallisneria spinulosa Yan Decomposition Substrate compositions DOM Microorganisms |
| title | Growth substrates change the decomposition process of eelgrass in water bodies |
| title_full | Growth substrates change the decomposition process of eelgrass in water bodies |
| title_fullStr | Growth substrates change the decomposition process of eelgrass in water bodies |
| title_full_unstemmed | Growth substrates change the decomposition process of eelgrass in water bodies |
| title_short | Growth substrates change the decomposition process of eelgrass in water bodies |
| title_sort | growth substrates change the decomposition process of eelgrass in water bodies |
| topic | Vallisneria spinulosa Yan Decomposition Substrate compositions DOM Microorganisms |
| url | https://doi.org/10.1186/s12302-024-01033-1 |
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