Liming suppresses fine root production and turnover in a northern hardwood forest.
Saved in:
| Title: | Liming suppresses fine root production and turnover in a northern hardwood forest. |
|---|---|
| Authors: | Frey, David W.1 (AUTHOR) dwf62@cornell.edu, Hecking, Matthew1 (AUTHOR), Fahey, Timothy J.2 (AUTHOR), Goodale, Christine L.1 (AUTHOR) |
| Source: | Canadian Journal of Forest Research. 7/24/2025, Vol. 55, p1-10. 10p. |
| Subject Terms: | *Carbon in soils, *Hardwood forests, *Organic compound content of soils, *Humification, *Calcium, Plant roots, Root development |
| Geographic Terms: | Adirondack Park (N.Y.) |
| Abstract: | Fine roots and root-associated carbon (C) inputs contribute disproportionally to soil C stocks. Here, we quantified fine root dynamics in a mixed northern hardwood forest at the Woods Lake Watershed in the Adirondack Park, NY, USA, where an experimental lime application in 1989 led to the near-doubling of forest floor organic matter stocks two decades later. Prior work linked this organic matter accumulation with lower heterotrophic respiration and decreased abundances of major fungal saprotrophs and ectomycorrhizal fungi. We investigated whether liming-driven shifts in fine root dynamics and depth distribution also contributed to forest floor accumulation. Forest floor mass in limed plots again roughly doubled that in unlimed plots 32 years after liming, with persistently large accumulations in the Oa horizon. Liming decreased fine root production across all horizons measured (Oe, Oa, 0–10 cm mineral soil) and by 40% overall, with largest effects in the Oa horizon (−45%) where root turnover was also reduced (−59%). Thus, liming decreased, rather than increased, root detrital C inputs to the forest floor. These results suggest that liming must have suppressed decomposition even more than shown previously or increased some other C input to the forest floor to explain its substantial C accumulation. [ABSTRACT FROM AUTHOR] |
| Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing 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 |
|---|---|
| Header | DbId: 8gh DbLabel: GreenFILE An: 186787965 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Liming suppresses fine root production and turnover in a northern hardwood forest. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Frey%2C+David+W%2E%22">Frey, David W.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dwf62@cornell.edu</i><br /><searchLink fieldCode="AR" term="%22Hecking%2C+Matthew%22">Hecking, Matthew</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fahey%2C+Timothy+J%2E%22">Fahey, Timothy J.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Goodale%2C+Christine+L%2E%22">Goodale, Christine L.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Canadian+Journal+of+Forest+Research%22">Canadian Journal of Forest Research</searchLink>. 7/24/2025, Vol. 55, p1-10. 10p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Carbon+in+soils%22">Carbon in soils</searchLink><br />*<searchLink fieldCode="DE" term="%22Hardwood+forests%22">Hardwood forests</searchLink><br />*<searchLink fieldCode="DE" term="%22Organic+compound+content+of+soils%22">Organic compound content of soils</searchLink><br />*<searchLink fieldCode="DE" term="%22Humification%22">Humification</searchLink><br />*<searchLink fieldCode="DE" term="%22Calcium%22">Calcium</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+roots%22">Plant roots</searchLink><br /><searchLink fieldCode="DE" term="%22Root+development%22">Root development</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Adirondack+Park+%28N%2EY%2E%29%22">Adirondack Park (N.Y.)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Fine roots and root-associated carbon (C) inputs contribute disproportionally to soil C stocks. Here, we quantified fine root dynamics in a mixed northern hardwood forest at the Woods Lake Watershed in the Adirondack Park, NY, USA, where an experimental lime application in 1989 led to the near-doubling of forest floor organic matter stocks two decades later. Prior work linked this organic matter accumulation with lower heterotrophic respiration and decreased abundances of major fungal saprotrophs and ectomycorrhizal fungi. We investigated whether liming-driven shifts in fine root dynamics and depth distribution also contributed to forest floor accumulation. Forest floor mass in limed plots again roughly doubled that in unlimed plots 32 years after liming, with persistently large accumulations in the Oa horizon. Liming decreased fine root production across all horizons measured (Oe, Oa, 0–10 cm mineral soil) and by 40% overall, with largest effects in the Oa horizon (−45%) where root turnover was also reduced (−59%). Thus, liming decreased, rather than increased, root detrital C inputs to the forest floor. These results suggest that liming must have suppressed decomposition even more than shown previously or increased some other C input to the forest floor to explain its substantial C accumulation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Canadian Journal of Forest Research is the property of Canadian Science Publishing 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=186787965 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1139/cjfr-2025-0024 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1 Subjects: – SubjectFull: Carbon in soils Type: general – SubjectFull: Hardwood forests Type: general – SubjectFull: Organic compound content of soils Type: general – SubjectFull: Humification Type: general – SubjectFull: Calcium Type: general – SubjectFull: Plant roots Type: general – SubjectFull: Root development Type: general – SubjectFull: Adirondack Park (N.Y.) Type: general Titles: – TitleFull: Liming suppresses fine root production and turnover in a northern hardwood forest. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Frey, David W. – PersonEntity: Name: NameFull: Hecking, Matthew – PersonEntity: Name: NameFull: Fahey, Timothy J. – PersonEntity: Name: NameFull: Goodale, Christine L. IsPartOfRelationships: – BibEntity: Dates: – D: 24 M: 07 Text: 7/24/2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00455067 Numbering: – Type: volume Value: 55 Titles: – TitleFull: Canadian Journal of Forest Research Type: main |
| ResultId | 1 |
