Home > Research > Publications & Outputs > Direct and indirect effects of ammonia, ammoniu...

Research

Links

Text available via DOI:

Keywords

View graph of relations

Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland

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

Published

Standard

Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland. / Johnson, David; Moore, Lucy; Green, Samuel et al.
In: Environ. Pollut., Vol. 158, No. 10, 31.10.2010, p. 3157-3163.

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

Harvard

Johnson, D, Moore, L, Green, S, Leith, ID & Sheppard, LJ 2010, 'Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland', Environ. Pollut., vol. 158, no. 10, pp. 3157-3163. https://doi.org/10.1016/j.envpol.2010.06.038

APA

Johnson, D., Moore, L., Green, S., Leith, I. D., & Sheppard, L. J. (2010). Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland. Environ. Pollut., 158(10), 3157-3163. https://doi.org/10.1016/j.envpol.2010.06.038

Vancouver

Johnson D, Moore L, Green S, Leith ID, Sheppard LJ. Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland. Environ. Pollut. 2010 Oct 31;158(10):3157-3163. Epub 2010 Aug 2. doi: 10.1016/j.envpol.2010.06.038

Author

Johnson, David ; Moore, Lucy ; Green, Samuel et al. / Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland. In: Environ. Pollut. 2010 ; Vol. 158, No. 10. pp. 3157-3163.

Bibtex

@article{437530bc5cfe4106acfdc8c43cbe6f44,
title = "Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland",
abstract = "Here we investigate the response of soils and litter to 5 years of experimental additions of ammonium (NH4), nitrate (NO3), and ammonia (NH3) to an ombrotrophic peatland. We test the importance of direct (via soil) and indirect (via litter) effects on phosphatase activity and efflux of CO2. We also determined how species representing different functional types responded to the nitrogen treatments. Our results demonstrate that additions of NO3, NH4 and NH3 all stimulated phosphatase activity but the effects were dependent on species of litter and mechanism (direct or indirect). Deposition of NH3 had no effect on efflux of CO2 from Calluna vulgaris litter, despite it showing signs of stress in the field, whereas both NO3 and NH4 reduced CO2 fluxes. Our results show that the collective impacts on peatlands of the three principal forms of nitrogen in atmospheric deposition are a result of differential effects and mechanisms on individual components.",
keywords = "Calluna vulgaris, Eriophorum vaginatum, Sphagnum capillifolium, Nitrogen deposition, Ombrotrophic bog",
author = "David Johnson and Lucy Moore and Samuel Green and Leith, {Ian D.} and Sheppard, {Lucy J.}",
year = "2010",
month = oct,
day = "31",
doi = "10.1016/j.envpol.2010.06.038",
language = "English",
volume = "158",
pages = "3157--3163",
journal = "Environ. Pollut.",
issn = "0269-7491",
publisher = "Elsevier Ltd",
number = "10",

}

RIS

TY - JOUR

T1 - Direct and indirect effects of ammonia, ammonium and nitrate on phosphatase activity and carbon fluxes from decomposing litter in peatland

AU - Johnson, David

AU - Moore, Lucy

AU - Green, Samuel

AU - Leith, Ian D.

AU - Sheppard, Lucy J.

PY - 2010/10/31

Y1 - 2010/10/31

N2 - Here we investigate the response of soils and litter to 5 years of experimental additions of ammonium (NH4), nitrate (NO3), and ammonia (NH3) to an ombrotrophic peatland. We test the importance of direct (via soil) and indirect (via litter) effects on phosphatase activity and efflux of CO2. We also determined how species representing different functional types responded to the nitrogen treatments. Our results demonstrate that additions of NO3, NH4 and NH3 all stimulated phosphatase activity but the effects were dependent on species of litter and mechanism (direct or indirect). Deposition of NH3 had no effect on efflux of CO2 from Calluna vulgaris litter, despite it showing signs of stress in the field, whereas both NO3 and NH4 reduced CO2 fluxes. Our results show that the collective impacts on peatlands of the three principal forms of nitrogen in atmospheric deposition are a result of differential effects and mechanisms on individual components.

AB - Here we investigate the response of soils and litter to 5 years of experimental additions of ammonium (NH4), nitrate (NO3), and ammonia (NH3) to an ombrotrophic peatland. We test the importance of direct (via soil) and indirect (via litter) effects on phosphatase activity and efflux of CO2. We also determined how species representing different functional types responded to the nitrogen treatments. Our results demonstrate that additions of NO3, NH4 and NH3 all stimulated phosphatase activity but the effects were dependent on species of litter and mechanism (direct or indirect). Deposition of NH3 had no effect on efflux of CO2 from Calluna vulgaris litter, despite it showing signs of stress in the field, whereas both NO3 and NH4 reduced CO2 fluxes. Our results show that the collective impacts on peatlands of the three principal forms of nitrogen in atmospheric deposition are a result of differential effects and mechanisms on individual components.

KW - Calluna vulgaris

KW - Eriophorum vaginatum

KW - Sphagnum capillifolium

KW - Nitrogen deposition

KW - Ombrotrophic bog

U2 - 10.1016/j.envpol.2010.06.038

DO - 10.1016/j.envpol.2010.06.038

M3 - Journal article

VL - 158

SP - 3157

EP - 3163

JO - Environ. Pollut.

JF - Environ. Pollut.

SN - 0269-7491

IS - 10

ER -