Phosphorus source-sink distributions and fluxes in shallow-water wetland sediments: Insights from multiple habitats, varying water quality, and microbial communities.
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| Title: | Phosphorus source-sink distributions and fluxes in shallow-water wetland sediments: Insights from multiple habitats, varying water quality, and microbial communities. |
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| Authors: | Zhang, Yuwei1,2 (AUTHOR), Zhang, Shengqi1,3 (AUTHOR), Han, Yangyang1 (AUTHOR), Guo, Cheng1,2 (AUTHOR), Liu, Ling1,2 (AUTHOR) liuling@hbu.edu.cn, Wang, Hongjie1,2 (AUTHOR) wanghj@hbu.edu.cn |
| Source: | Journal of Environmental Sciences (Elsevier). Jun2026, Vol. 164, p752-767. 16p. |
| Subject Terms: | *Phosphorus compounds, *Microbial communities, *Habitat modification, *Water quality, *Nutrient cycles, Marine sediment pollution, Wetland soils |
| Abstract: | • Speciation and distribution of P in sediment can be influenced by both TN and OM. • The sediment phosphorus sorption release characteristics differ between the habitats. • Ditches, ponds, and reed marshes were potential sources of P release under raw water conditions. • Ditch habitats exhibit higher microbial community complexity and stability, promoting nutrient release. Fluctuation in overlying water quality across multiple habitats and the reservoir conditions of different sediment pollutants significantly influence the "source-sink" effect of endogenous nutrients in shallow-water wetlands. This study investigated the sediment nutrient composition in four habitats (i.e. open-water area, ditch, pond, and reed marsh) within Baiyangdian wetland (BYDW), combined with the simulated release experiment to estimate the nutrient exchange flux under the different overlying water qualities. The findings indicate that the nutrient contents of ditch sediments were significantly higher than those in the other habitats. The ditch overlying water exhibited significantly higher concentrations of soluble reactive phosphorus (SRP), total phosphorus (TP), and ammonia nitrogen (NH 4 +-N), and the maximum contents were 0.009 mg/L, 0.0443 mg/L, and 0.4057 mg/L, respectively. Sediment horizon depth significantly influenced the composition of different P fractions. While residual phosphorus (Res-P) and calcium-bound phosphorus (Ca-P) comprised a substantial portion of TP, about 60.53 %-79.46 %. Sediments in ditch, pond, and reed marsh areas acted as TP sources under the raw water quality condition, and the releasing rate was 4.68, 1.80, and 0.18 mg/(m2·day). The overlying water quality, sediment pH, organic matter (OM) content, as well as phosphorus speciation significantly influenced the exchange of phosphorus-containing substances. Both Chloroflexi and Proteobacteria significantly contributed to the degradation of sediment nutrients in open-water and reed areas. Ditch exhibited the highest TP release, with the release amount W (TP) varied from 64.15–72.17 t/yr. The ditch and pond areas exhibited relatively strong "source" potential, highlighting the need for effective management of endogenous pollution. [Display omitted] [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 193395107 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Phosphorus source-sink distributions and fluxes in shallow-water wetland sediments: Insights from multiple habitats, varying water quality, and microbial communities. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Yuwei%22">Zhang, Yuwei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Shengqi%22">Zhang, Shengqi</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Yangyang%22">Han, Yangyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Cheng%22">Guo, Cheng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Ling%22">Liu, Ling</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> liuling@hbu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Hongjie%22">Wang, Hongjie</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wanghj@hbu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Sciences+%28Elsevier%29%22">Journal of Environmental Sciences (Elsevier)</searchLink>. Jun2026, Vol. 164, p752-767. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Phosphorus+compounds%22">Phosphorus compounds</searchLink><br />*<searchLink fieldCode="DE" term="%22Microbial+communities%22">Microbial communities</searchLink><br />*<searchLink fieldCode="DE" term="%22Habitat+modification%22">Habitat modification</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+quality%22">Water quality</searchLink><br />*<searchLink fieldCode="DE" term="%22Nutrient+cycles%22">Nutrient cycles</searchLink><br /><searchLink fieldCode="DE" term="%22Marine+sediment+pollution%22">Marine sediment pollution</searchLink><br /><searchLink fieldCode="DE" term="%22Wetland+soils%22">Wetland soils</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Speciation and distribution of P in sediment can be influenced by both TN and OM. • The sediment phosphorus sorption release characteristics differ between the habitats. • Ditches, ponds, and reed marshes were potential sources of P release under raw water conditions. • Ditch habitats exhibit higher microbial community complexity and stability, promoting nutrient release. Fluctuation in overlying water quality across multiple habitats and the reservoir conditions of different sediment pollutants significantly influence the "source-sink" effect of endogenous nutrients in shallow-water wetlands. This study investigated the sediment nutrient composition in four habitats (i.e. open-water area, ditch, pond, and reed marsh) within Baiyangdian wetland (BYDW), combined with the simulated release experiment to estimate the nutrient exchange flux under the different overlying water qualities. The findings indicate that the nutrient contents of ditch sediments were significantly higher than those in the other habitats. The ditch overlying water exhibited significantly higher concentrations of soluble reactive phosphorus (SRP), total phosphorus (TP), and ammonia nitrogen (NH 4 +-N), and the maximum contents were 0.009 mg/L, 0.0443 mg/L, and 0.4057 mg/L, respectively. Sediment horizon depth significantly influenced the composition of different P fractions. While residual phosphorus (Res-P) and calcium-bound phosphorus (Ca-P) comprised a substantial portion of TP, about 60.53 %-79.46 %. Sediments in ditch, pond, and reed marsh areas acted as TP sources under the raw water quality condition, and the releasing rate was 4.68, 1.80, and 0.18 mg/(m2·day). The overlying water quality, sediment pH, organic matter (OM) content, as well as phosphorus speciation significantly influenced the exchange of phosphorus-containing substances. Both Chloroflexi and Proteobacteria significantly contributed to the degradation of sediment nutrients in open-water and reed areas. Ditch exhibited the highest TP release, with the release amount W (TP) varied from 64.15–72.17 t/yr. The ditch and pond areas exhibited relatively strong "source" potential, highlighting the need for effective management of endogenous pollution. [Display omitted] [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jes.2025.09.059 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 752 Subjects: – SubjectFull: Phosphorus compounds Type: general – SubjectFull: Microbial communities Type: general – SubjectFull: Habitat modification Type: general – SubjectFull: Water quality Type: general – SubjectFull: Nutrient cycles Type: general – SubjectFull: Marine sediment pollution Type: general – SubjectFull: Wetland soils Type: general Titles: – TitleFull: Phosphorus source-sink distributions and fluxes in shallow-water wetland sediments: Insights from multiple habitats, varying water quality, and microbial communities. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Yuwei – PersonEntity: Name: NameFull: Zhang, Shengqi – PersonEntity: Name: NameFull: Han, Yangyang – PersonEntity: Name: NameFull: Guo, Cheng – PersonEntity: Name: NameFull: Liu, Ling – PersonEntity: Name: NameFull: Wang, Hongjie IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 10010742 Numbering: – Type: volume Value: 164 Titles: – TitleFull: Journal of Environmental Sciences (Elsevier) Type: main |
| ResultId | 1 |
