The Effect of Biochar on Marsh Phosphorus Retention: Implications for P Biogeochemical Ecosystem Services from Prescribed Burns.
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| Title: | The Effect of Biochar on Marsh Phosphorus Retention: Implications for P Biogeochemical Ecosystem Services from Prescribed Burns. |
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| Authors: | Edris, Pamela C.1 (AUTHOR), Laurent, Kari St.2 (AUTHOR), Yacano, Mollie R.3 (AUTHOR), Wozniak, Andrew S.1 (AUTHOR) awozniak@udel.edu |
| Source: | Estuaries & Coasts. May2026, Vol. 49 Issue 3, p1-15. 15p. |
| Abstract: | Mid-Atlantic tidal salt marshes provide a number of ecosystem services including the storage of phosphorus (P) within their soils, which reduces nutrient export to estuaries. The storage of P in marsh soils is vegetation-specific, and management efforts targeting the removal of the invasive common reed, Phragmites australis may reduce the P ecosystem service. The use of prescribed burns to remove P. australis introduces biochar into marsh soils, which has been shown to sorb excess P in agricultural and wastewater systems. Biochar additions with burning may thus recoup P storage services lost via P. australis replacement. Organic and inorganic total P content and relative P mobility (determined by sequential extraction) were measured along with a suite of physical and biogeochemical parameters in field collected soil cores from a marsh that had been recently burned and two comparator marshes. Neither burn frequency nor quantities of black carbon, a biochar proxy, were positively associated with P content in any of the P pools indicating that burns are not enhancing P storage in these marshes. Biochar added to experimental plots similarly showed no P storage benefit over control plots. Instead, environmental (e.g., hydrological, vegetation, soil pH, metal content) factors dominated P concentration variations in this work. The lack of an added P storage observed in these data is indicative that biochar properties vary depending on their production conditions, and low temperature (< 400 °C) prescribed burns of P. australis are unlikely to yield biochars with pH and cation exchange properties favorable for the enhanced P sorption. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 192446805 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The Effect of Biochar on Marsh Phosphorus Retention: Implications for P Biogeochemical Ecosystem Services from Prescribed Burns. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Edris%2C+Pamela+C%2E%22">Edris, Pamela C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Laurent%2C+Kari+St%2E%22">Laurent, Kari St.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yacano%2C+Mollie+R%2E%22">Yacano, Mollie R.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wozniak%2C+Andrew+S%2E%22">Wozniak, Andrew S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> awozniak@udel.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Estuaries+%26+Coasts%22">Estuaries & Coasts</searchLink>. May2026, Vol. 49 Issue 3, p1-15. 15p. – Name: Abstract Label: Abstract Group: Ab Data: Mid-Atlantic tidal salt marshes provide a number of ecosystem services including the storage of phosphorus (P) within their soils, which reduces nutrient export to estuaries. The storage of P in marsh soils is vegetation-specific, and management efforts targeting the removal of the invasive common reed, Phragmites australis may reduce the P ecosystem service. The use of prescribed burns to remove P. australis introduces biochar into marsh soils, which has been shown to sorb excess P in agricultural and wastewater systems. Biochar additions with burning may thus recoup P storage services lost via P. australis replacement. Organic and inorganic total P content and relative P mobility (determined by sequential extraction) were measured along with a suite of physical and biogeochemical parameters in field collected soil cores from a marsh that had been recently burned and two comparator marshes. Neither burn frequency nor quantities of black carbon, a biochar proxy, were positively associated with P content in any of the P pools indicating that burns are not enhancing P storage in these marshes. Biochar added to experimental plots similarly showed no P storage benefit over control plots. Instead, environmental (e.g., hydrological, vegetation, soil pH, metal content) factors dominated P concentration variations in this work. The lack of an added P storage observed in these data is indicative that biochar properties vary depending on their production conditions, and low temperature (< 400 °C) prescribed burns of P. australis are unlikely to yield biochars with pH and cation exchange properties favorable for the enhanced P sorption. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12237-026-01687-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1 Titles: – TitleFull: The Effect of Biochar on Marsh Phosphorus Retention: Implications for P Biogeochemical Ecosystem Services from Prescribed Burns. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Edris, Pamela C. – PersonEntity: Name: NameFull: Laurent, Kari St. – PersonEntity: Name: NameFull: Yacano, Mollie R. – PersonEntity: Name: NameFull: Wozniak, Andrew S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 15592723 Numbering: – Type: volume Value: 49 – Type: issue Value: 3 Titles: – TitleFull: Estuaries & Coasts Type: main |
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