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Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. / Phuyal, Mukunda; Artz, Rebekka R. E.; Sheppard, Lucy et al.
In: Plant Ecology, Vol. 196, No. 1, 31.05.2008, p. 111-121.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Phuyal, M, Artz, RRE, Sheppard, L, Leith, ID & Johnson, D 2008, 'Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog', Plant Ecology, vol. 196, no. 1, pp. 111-121. https://doi.org/10.1007/s11258-007-9338-1

APA

Phuyal, M., Artz, R. R. E., Sheppard, L., Leith, I. D., & Johnson, D. (2008). Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology, 196(1), 111-121. https://doi.org/10.1007/s11258-007-9338-1

Vancouver

Phuyal M, Artz RRE, Sheppard L, Leith ID, Johnson D. Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology. 2008 May 31;196(1):111-121. Epub 2007 Aug 3. doi: 10.1007/s11258-007-9338-1

Author

Phuyal, Mukunda ; Artz, Rebekka R. E. ; Sheppard, Lucy et al. / Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. In: Plant Ecology. 2008 ; Vol. 196, No. 1. pp. 111-121.

Bibtex

@article{39ff7c64a50f449d8b4fc20de1f250ac,
title = "Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog",
abstract = "Here we investigate the effect of 4 years simulated atmospheric deposition of ammonium (NH4) and nitrate (NO3), applied alone or in combination with phosphorus and potassium (PK), on the surface phosphatase activities and nutrient acquisition behaviour of two species of moss (Sphagnum capillifolium and Hypnum jutlandicum) from an ombrotrophic peatland. Phosphatase activity was significantly enhanced by both the NH4 and NO3 treatments, particularly for Sphagnum, but the activity decreased when exposed to additions of PK. Regression analysis revealed that phosphatase activity on Sphagnum was positively related with tissue N and negatively related to tissue P concentrations. For Hypnum, a negative relationship between shoot P concentration and phosphatase activity was observed. Using a 32P tracer, mosses removed from plots receiving PK in combination with NH4 maintained their affinity for increased phosphorus uptake. These findings suggest that enhanced nutrient supply, even at modest doses, significantly alter the nutrient recycling behaviour of bryophytes.",
keywords = "bog, bryophyte, nitrogen deposition, phosphatase, fertilization",
author = "Mukunda Phuyal and Artz, {Rebekka R. E.} and Lucy Sheppard and Leith, {Ian D.} and David Johnson",
year = "2008",
month = may,
day = "31",
doi = "10.1007/s11258-007-9338-1",
language = "English",
volume = "196",
pages = "111--121",
journal = "Plant Ecology",
issn = "1385-0237",
publisher = "Springer Netherlands",
number = "1",

}

RIS

TY - JOUR

T1 - Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog

AU - Phuyal, Mukunda

AU - Artz, Rebekka R. E.

AU - Sheppard, Lucy

AU - Leith, Ian D.

AU - Johnson, David

PY - 2008/5/31

Y1 - 2008/5/31

N2 - Here we investigate the effect of 4 years simulated atmospheric deposition of ammonium (NH4) and nitrate (NO3), applied alone or in combination with phosphorus and potassium (PK), on the surface phosphatase activities and nutrient acquisition behaviour of two species of moss (Sphagnum capillifolium and Hypnum jutlandicum) from an ombrotrophic peatland. Phosphatase activity was significantly enhanced by both the NH4 and NO3 treatments, particularly for Sphagnum, but the activity decreased when exposed to additions of PK. Regression analysis revealed that phosphatase activity on Sphagnum was positively related with tissue N and negatively related to tissue P concentrations. For Hypnum, a negative relationship between shoot P concentration and phosphatase activity was observed. Using a 32P tracer, mosses removed from plots receiving PK in combination with NH4 maintained their affinity for increased phosphorus uptake. These findings suggest that enhanced nutrient supply, even at modest doses, significantly alter the nutrient recycling behaviour of bryophytes.

AB - Here we investigate the effect of 4 years simulated atmospheric deposition of ammonium (NH4) and nitrate (NO3), applied alone or in combination with phosphorus and potassium (PK), on the surface phosphatase activities and nutrient acquisition behaviour of two species of moss (Sphagnum capillifolium and Hypnum jutlandicum) from an ombrotrophic peatland. Phosphatase activity was significantly enhanced by both the NH4 and NO3 treatments, particularly for Sphagnum, but the activity decreased when exposed to additions of PK. Regression analysis revealed that phosphatase activity on Sphagnum was positively related with tissue N and negatively related to tissue P concentrations. For Hypnum, a negative relationship between shoot P concentration and phosphatase activity was observed. Using a 32P tracer, mosses removed from plots receiving PK in combination with NH4 maintained their affinity for increased phosphorus uptake. These findings suggest that enhanced nutrient supply, even at modest doses, significantly alter the nutrient recycling behaviour of bryophytes.

KW - bog

KW - bryophyte

KW - nitrogen deposition

KW - phosphatase

KW - fertilization

U2 - 10.1007/s11258-007-9338-1

DO - 10.1007/s11258-007-9338-1

M3 - Journal article

VL - 196

SP - 111

EP - 121

JO - Plant Ecology

JF - Plant Ecology

SN - 1385-0237

IS - 1

ER -