Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015
Development of the oil sands has led to increasing atmospheric N deposition, with values as high as 17 kg N ha -1 yr -1 ; regional background levels <2 kg N ha -1 yr -1 . Bogs, being ombrotrophic, may be especially susceptible to increasing N deposition. To examine responses to N deposition, over...
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dataone:https://pasta.lternet.edu/package/metadata/eml/edi/319/1 2024-06-03T18:46:50+00:00 Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen Alberta, Canada, 100 km south of Fort McMurray, Canada ENVELOPE(-112.094,-112.094,55.895,55.895) BEGINDATE: 2013-07-01T00:00:00Z ENDDATE: 2015-10-01T00:00:00Z 2019-04-12T00:00:00Z https://pasta.lternet.edu/package/metadata/eml/edi/319/1 unknown Environmental Data Initiative Villanova Peatland Biogeochemistry Group bogs peatland nitrogen capitula wetlands Dataset 2019 dataone:urn:node:EDI 2024-06-03T18:12:03Z Development of the oil sands has led to increasing atmospheric N deposition, with values as high as 17 kg N ha -1 yr -1 ; regional background levels <2 kg N ha -1 yr -1 . Bogs, being ombrotrophic, may be especially susceptible to increasing N deposition. To examine responses to N deposition, over five years, we experimentally applied N (as NH 4 NO 3 ) to a bog near Mariana Lakes, Alberta, at rates of 0, 5, 10, 15, 20, and 25 kg N ha -1 yr -1 , plus controls (no water or N addition). From 2013-2015, we examined the effects of N addition on changes in S. fuscum capitulum mass density, N concentrations, and N contents in plants collected in early July (summer) and early October (fall). In each year, capitulum mass density decreased with increasing N input at equal rates in summer-collected and fall-collected plants, although CMD was consistently higher in fall-collected than in summer-collected plants. For both summer- and fall-collected plants, capitulum N concentrations were unaffected by N inputs, although N concentrations were consistently higher in summer (14.4 ± 0.3 mg g -1 ) than in fall (0.7 ± 0.1 mg g -1 ). Combining CMD and capitulum N concentrations, capitulum N contents overall averaged 1.16 ± 0.04 g m -2 . Capitulum N contents decreased with increasing N input, with the response being stronger in 2013 than in 2014/2015 . These results, combined with stem and capitulum responses at Mariana Lakes Bog, suggest that increasing N loading affects not only S. fuscum NPP, but also the way in which S. fuscum grows. Dataset Fort McMurray Environmental Data Initiative (via DataONE) Canada Fort McMurray ENVELOPE(-112.094,-112.094,55.895,55.895) |
institution |
Open Polar |
collection |
Environmental Data Initiative (via DataONE) |
op_collection_id |
dataone:urn:node:EDI |
language |
unknown |
topic |
Villanova Peatland Biogeochemistry Group bogs peatland nitrogen capitula wetlands |
spellingShingle |
Villanova Peatland Biogeochemistry Group bogs peatland nitrogen capitula wetlands R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
topic_facet |
Villanova Peatland Biogeochemistry Group bogs peatland nitrogen capitula wetlands |
description |
Development of the oil sands has led to increasing atmospheric N deposition, with values as high as 17 kg N ha -1 yr -1 ; regional background levels <2 kg N ha -1 yr -1 . Bogs, being ombrotrophic, may be especially susceptible to increasing N deposition. To examine responses to N deposition, over five years, we experimentally applied N (as NH 4 NO 3 ) to a bog near Mariana Lakes, Alberta, at rates of 0, 5, 10, 15, 20, and 25 kg N ha -1 yr -1 , plus controls (no water or N addition). From 2013-2015, we examined the effects of N addition on changes in S. fuscum capitulum mass density, N concentrations, and N contents in plants collected in early July (summer) and early October (fall). In each year, capitulum mass density decreased with increasing N input at equal rates in summer-collected and fall-collected plants, although CMD was consistently higher in fall-collected than in summer-collected plants. For both summer- and fall-collected plants, capitulum N concentrations were unaffected by N inputs, although N concentrations were consistently higher in summer (14.4 ± 0.3 mg g -1 ) than in fall (0.7 ± 0.1 mg g -1 ). Combining CMD and capitulum N concentrations, capitulum N contents overall averaged 1.16 ± 0.04 g m -2 . Capitulum N contents decreased with increasing N input, with the response being stronger in 2013 than in 2014/2015 . These results, combined with stem and capitulum responses at Mariana Lakes Bog, suggest that increasing N loading affects not only S. fuscum NPP, but also the way in which S. fuscum grows. |
format |
Dataset |
author |
R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen |
author_facet |
R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen |
author_sort |
R Kelman Wieder |
title |
Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
title_short |
Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
title_full |
Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
title_fullStr |
Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
title_full_unstemmed |
Sphagnum fuscum Capitulum Density, Mass, and N Concentrations From N-Addition Plots in an Alberta Peatland, 2013-2015 |
title_sort |
sphagnum fuscum capitulum density, mass, and n concentrations from n-addition plots in an alberta peatland, 2013-2015 |
publisher |
Environmental Data Initiative |
publishDate |
2019 |
url |
https://pasta.lternet.edu/package/metadata/eml/edi/319/1 |
op_coverage |
Alberta, Canada, 100 km south of Fort McMurray, Canada ENVELOPE(-112.094,-112.094,55.895,55.895) BEGINDATE: 2013-07-01T00:00:00Z ENDDATE: 2015-10-01T00:00:00Z |
long_lat |
ENVELOPE(-112.094,-112.094,55.895,55.895) |
geographic |
Canada Fort McMurray |
geographic_facet |
Canada Fort McMurray |
genre |
Fort McMurray |
genre_facet |
Fort McMurray |
_version_ |
1800871755990958080 |