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Cross-site comparison of ecosystem nutrient cycling in hardwood and conifer forests on contrasting soils.

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Title: Cross-site comparison of ecosystem nutrient cycling in hardwood and conifer forests on contrasting soils.
Authors: Yanai, Ruth D.1 (AUTHOR) rdyanai@syr.edu, Shanley, James B.2 (AUTHOR), Beidler, Jacob E.1 (AUTHOR), Hallett, Richard A.3 (AUTHOR), Park, Byung B.1,4 (AUTHOR), Siccama, Thomas G.5 (AUTHOR), Fahey, Timothy J.6 (AUTHOR)
Source: Canadian Journal of Forest Research. 1/12/2026, Vol. 56, p1-17. 17p.
Subject Terms: *Nutrient cycles, *Nutrient uptake, *Biomass production, *Hardwood forests, *Ecosystems, *Soil fertility, Coniferous forests
Geographic Terms: United States
Abstract: In the northeastern United States, both hardwood and conifer forests have developed on sites with contrasting soils, allowing an examination of the effect of site and forest type on ecosystem nutrient cycling. We measured biomass production and nutrient fluxes in northern hardwood and conifer stands at three sites differing in soil fertility. We found that leaf, root, and wood concentrations of calcium (Ca), magnesium (Mg), and potassium reflected differences in soil base cation availability, while concentrations of nitrogen (N) and phosphorus (P) were more consistent across sites. Nutrient uptake was calculated as the sum of litterfall, net throughfall (throughfall minus precipitation), root turnover, and accumulation in perennial tissues (wood). We propose a novel metric of nutrient cycling, the nutrient retention fraction (NRF), defined as the proportion of annual nutrient uptake retained in biomass accretion. Because the NRF is unitless, it can be compared across nutrients; Ca and Mg had the highest NRF and P the lowest (p = 0.05). Across sites and elements, NRFs were lower for conifers (5.0 ± 0.6%) than for hardwoods (7.2 ± 0.5%), associated with their lower productivity. Nutrient-use efficiency (biomass production divided by nutrient uptake) tended to be high where foliar concentrations indicated low availability of that nutrient. Nutrient retention of N and P was higher where availability of the other element was high, which could be a mechanism contributing to N and P co-limitation. [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.)
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DbLabel: GreenFILE
An: 190804075
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PubTypeId: academicJournal
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  Data: Cross-site comparison of ecosystem nutrient cycling in hardwood and conifer forests on contrasting soils.
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  Data: <searchLink fieldCode="AR" term="%22Yanai%2C+Ruth+D%2E%22">Yanai, Ruth D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rdyanai@syr.edu</i><br /><searchLink fieldCode="AR" term="%22Shanley%2C+James+B%2E%22">Shanley, James B.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Beidler%2C+Jacob+E%2E%22">Beidler, Jacob E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hallett%2C+Richard+A%2E%22">Hallett, Richard A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Park%2C+Byung+B%2E%22">Park, Byung B.</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Siccama%2C+Thomas+G%2E%22">Siccama, Thomas G.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fahey%2C+Timothy+J%2E%22">Fahey, Timothy J.</searchLink><relatesTo>6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Canadian+Journal+of+Forest+Research%22">Canadian Journal of Forest Research</searchLink>. 1/12/2026, Vol. 56, p1-17. 17p.
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  Data: *<searchLink fieldCode="DE" term="%22Nutrient+cycles%22">Nutrient cycles</searchLink><br />*<searchLink fieldCode="DE" term="%22Nutrient+uptake%22">Nutrient uptake</searchLink><br />*<searchLink fieldCode="DE" term="%22Biomass+production%22">Biomass production</searchLink><br />*<searchLink fieldCode="DE" term="%22Hardwood+forests%22">Hardwood forests</searchLink><br />*<searchLink fieldCode="DE" term="%22Ecosystems%22">Ecosystems</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+fertility%22">Soil fertility</searchLink><br /><searchLink fieldCode="DE" term="%22Coniferous+forests%22">Coniferous forests</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22United+States%22">United States</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In the northeastern United States, both hardwood and conifer forests have developed on sites with contrasting soils, allowing an examination of the effect of site and forest type on ecosystem nutrient cycling. We measured biomass production and nutrient fluxes in northern hardwood and conifer stands at three sites differing in soil fertility. We found that leaf, root, and wood concentrations of calcium (Ca), magnesium (Mg), and potassium reflected differences in soil base cation availability, while concentrations of nitrogen (N) and phosphorus (P) were more consistent across sites. Nutrient uptake was calculated as the sum of litterfall, net throughfall (throughfall minus precipitation), root turnover, and accumulation in perennial tissues (wood). We propose a novel metric of nutrient cycling, the nutrient retention fraction (NRF), defined as the proportion of annual nutrient uptake retained in biomass accretion. Because the NRF is unitless, it can be compared across nutrients; Ca and Mg had the highest NRF and P the lowest (p = 0.05). Across sites and elements, NRFs were lower for conifers (5.0 ± 0.6%) than for hardwoods (7.2 ± 0.5%), associated with their lower productivity. Nutrient-use efficiency (biomass production divided by nutrient uptake) tended to be high where foliar concentrations indicated low availability of that nutrient. Nutrient retention of N and P was higher where availability of the other element was high, which could be a mechanism contributing to N and P co-limitation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  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.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1139/cjfr-2025-0056
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 1
    Subjects:
      – SubjectFull: Nutrient cycles
        Type: general
      – SubjectFull: Nutrient uptake
        Type: general
      – SubjectFull: Biomass production
        Type: general
      – SubjectFull: Hardwood forests
        Type: general
      – SubjectFull: Ecosystems
        Type: general
      – SubjectFull: Soil fertility
        Type: general
      – SubjectFull: Coniferous forests
        Type: general
      – SubjectFull: United States
        Type: general
    Titles:
      – TitleFull: Cross-site comparison of ecosystem nutrient cycling in hardwood and conifer forests on contrasting soils.
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            NameFull: Yanai, Ruth D.
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            NameFull: Shanley, James B.
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            NameFull: Beidler, Jacob E.
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            NameFull: Hallett, Richard A.
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            NameFull: Park, Byung B.
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            – D: 12
              M: 01
              Text: 1/12/2026
              Type: published
              Y: 2026
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            – Type: issn-print
              Value: 00455067
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              Value: 56
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            – TitleFull: Canadian Journal of Forest Research
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