Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015
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. To examine responses to N deposition, over five years, we experimentally applied N (as NH4NO3) to a poor fen near Mariana Lake,...
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Environmental Data Initiative
2020
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dataone:https://pasta.lternet.edu/package/metadata/eml/edi/475/1 2024-06-03T18:46:47+00:00 Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Jacqueline M.A. Popma 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,-112.094,55.897,55.897) BEGINDATE: 2011-07-17T00:00:00Z ENDDATE: 2015-07-19T00:00:00Z 2020-03-24T00:00:00Z https://pasta.lternet.edu/package/metadata/eml/edi/475/1 unknown Environmental Data Initiative Villanova Peatland Biogeochemistry Group MLPF frequency fens mosses vascular plants nitrogen Sphagnum Sphagnum fuscum Sphagnum Sphagnum magellanicum Sphagnum Sphagnum angustifolium Sphagnum Sphagnum russowii Pohlia Pohlia nutans Mylia Mylia anomala Andromeda Andromeda polifolia Chamaedaphne Chamaedaphne calyculata Kalmia Kalmia polifolia Vaccinium Vaccinium oxycoccos Picea Picea mariana Eriophorum Eriophorum vaginatum Scheuchzeria Scheuchzeria palustris Drosera Drosera rotundifolia Rubus Rubus chamaemorus Maianthemum Maianthemum trifolium Carex Carex aquatilis Carex Carex limosa Sphagnum fuscum Sphagnum magellanicum Sphagnum angustifolium Sphagnum russowii Pohlia nutans Mylia anomala Andromeda polifolia Chamaedaphne calyculata Kalmia polifolia Vaccinium oxycoccos Picea mariana Eriophorum vaginatum Scheuchzeria palustris Drosera rotundifolia Rubus chamaemorus Maianthemum trifolium Carex aquatilis Carex limosa Dataset 2020 dataone:urn:node:EDI 2024-06-03T18:16:15Z 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. To examine responses to N deposition, over five years, we experimentally applied N (as NH4NO3) to a poor fen near Mariana Lake, Alberta, at rates of 0, 5, 10, 15, 20, and 25 kg N ha-1 yr-1, plus controls (no water or N addition). Anchored point frames were established at each plot and measure at 30 points along the frame each year in July. We used absolute frequencies of Sphagna and vascular plants to examine species and community responses to N treatment. Increasing N input led to led to decreased abundance of S. fuscum and increased abundance of S. angustifolium, S. magellanicum, Andromeda polifolia, Vaccinium oxycoccos, and of vascular plants in general. For dominant shrubs and all vascular species combined, N addition had no effect in the first two years, but frequencies increased with increasing N addition in 2013-2015. Pairwise year comparisons indicated a gradual change in plant species composition as the experiment progressed. Of the 21 pairwise comparisons between nominal N treatments, 18 were significant, indicating a clear influence of N addition on plant community composition. These results suggest that bogs that have persisted under very low ambient N deposition may be especially sensitive to increasing N deposition, in terms of plant species’ relative abundances and plant community composition. Dataset Carex aquatilis Fort McMurray Rubus chamaemorus Environmental Data Initiative (via DataONE) Canada Fort McMurray Mariana Lake ENVELOPE(-112.024,-112.024,55.951,55.951) ENVELOPE(-112.094,-112.094,55.897,55.897) |
institution |
Open Polar |
collection |
Environmental Data Initiative (via DataONE) |
op_collection_id |
dataone:urn:node:EDI |
language |
unknown |
topic |
Villanova Peatland Biogeochemistry Group MLPF frequency fens mosses vascular plants nitrogen Sphagnum Sphagnum fuscum Sphagnum Sphagnum magellanicum Sphagnum Sphagnum angustifolium Sphagnum Sphagnum russowii Pohlia Pohlia nutans Mylia Mylia anomala Andromeda Andromeda polifolia Chamaedaphne Chamaedaphne calyculata Kalmia Kalmia polifolia Vaccinium Vaccinium oxycoccos Picea Picea mariana Eriophorum Eriophorum vaginatum Scheuchzeria Scheuchzeria palustris Drosera Drosera rotundifolia Rubus Rubus chamaemorus Maianthemum Maianthemum trifolium Carex Carex aquatilis Carex Carex limosa Sphagnum fuscum Sphagnum magellanicum Sphagnum angustifolium Sphagnum russowii Pohlia nutans Mylia anomala Andromeda polifolia Chamaedaphne calyculata Kalmia polifolia Vaccinium oxycoccos Picea mariana Eriophorum vaginatum Scheuchzeria palustris Drosera rotundifolia Rubus chamaemorus Maianthemum trifolium Carex aquatilis Carex limosa |
spellingShingle |
Villanova Peatland Biogeochemistry Group MLPF frequency fens mosses vascular plants nitrogen Sphagnum Sphagnum fuscum Sphagnum Sphagnum magellanicum Sphagnum Sphagnum angustifolium Sphagnum Sphagnum russowii Pohlia Pohlia nutans Mylia Mylia anomala Andromeda Andromeda polifolia Chamaedaphne Chamaedaphne calyculata Kalmia Kalmia polifolia Vaccinium Vaccinium oxycoccos Picea Picea mariana Eriophorum Eriophorum vaginatum Scheuchzeria Scheuchzeria palustris Drosera Drosera rotundifolia Rubus Rubus chamaemorus Maianthemum Maianthemum trifolium Carex Carex aquatilis Carex Carex limosa Sphagnum fuscum Sphagnum magellanicum Sphagnum angustifolium Sphagnum russowii Pohlia nutans Mylia anomala Andromeda polifolia Chamaedaphne calyculata Kalmia polifolia Vaccinium oxycoccos Picea mariana Eriophorum vaginatum Scheuchzeria palustris Drosera rotundifolia Rubus chamaemorus Maianthemum trifolium Carex aquatilis Carex limosa R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Jacqueline M.A. Popma Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
topic_facet |
Villanova Peatland Biogeochemistry Group MLPF frequency fens mosses vascular plants nitrogen Sphagnum Sphagnum fuscum Sphagnum Sphagnum magellanicum Sphagnum Sphagnum angustifolium Sphagnum Sphagnum russowii Pohlia Pohlia nutans Mylia Mylia anomala Andromeda Andromeda polifolia Chamaedaphne Chamaedaphne calyculata Kalmia Kalmia polifolia Vaccinium Vaccinium oxycoccos Picea Picea mariana Eriophorum Eriophorum vaginatum Scheuchzeria Scheuchzeria palustris Drosera Drosera rotundifolia Rubus Rubus chamaemorus Maianthemum Maianthemum trifolium Carex Carex aquatilis Carex Carex limosa Sphagnum fuscum Sphagnum magellanicum Sphagnum angustifolium Sphagnum russowii Pohlia nutans Mylia anomala Andromeda polifolia Chamaedaphne calyculata Kalmia polifolia Vaccinium oxycoccos Picea mariana Eriophorum vaginatum Scheuchzeria palustris Drosera rotundifolia Rubus chamaemorus Maianthemum trifolium Carex aquatilis Carex limosa |
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. To examine responses to N deposition, over five years, we experimentally applied N (as NH4NO3) to a poor fen near Mariana Lake, Alberta, at rates of 0, 5, 10, 15, 20, and 25 kg N ha-1 yr-1, plus controls (no water or N addition). Anchored point frames were established at each plot and measure at 30 points along the frame each year in July. We used absolute frequencies of Sphagna and vascular plants to examine species and community responses to N treatment. Increasing N input led to led to decreased abundance of S. fuscum and increased abundance of S. angustifolium, S. magellanicum, Andromeda polifolia, Vaccinium oxycoccos, and of vascular plants in general. For dominant shrubs and all vascular species combined, N addition had no effect in the first two years, but frequencies increased with increasing N addition in 2013-2015. Pairwise year comparisons indicated a gradual change in plant species composition as the experiment progressed. Of the 21 pairwise comparisons between nominal N treatments, 18 were significant, indicating a clear influence of N addition on plant community composition. These results suggest that bogs that have persisted under very low ambient N deposition may be especially sensitive to increasing N deposition, in terms of plant species’ relative abundances and plant community composition. |
format |
Dataset |
author |
R Kelman Wieder Dale H Vitt Melanie A Vile Jeremy A Graham Jeremy A Hartsock Jacqueline M.A. Popma 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 Jacqueline M.A. Popma Hope Fillingim Melissa House James C Quinn Kimberli D Scott Meaghan Petix Kelly J McMillen |
author_sort |
R Kelman Wieder |
title |
Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_short |
Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_full |
Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_fullStr |
Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_full_unstemmed |
Point Frame Measurements of Poor Fen Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_sort |
point frame measurements of poor fen moss and vascular frequencies under increasing n deposition over five years, 2011-2015 |
publisher |
Environmental Data Initiative |
publishDate |
2020 |
url |
https://pasta.lternet.edu/package/metadata/eml/edi/475/1 |
op_coverage |
Alberta, Canada, 100 km south of Fort McMurray, Canada ENVELOPE(-112.094,-112.094,55.897,55.897) BEGINDATE: 2011-07-17T00:00:00Z ENDDATE: 2015-07-19T00:00:00Z |
long_lat |
ENVELOPE(-112.024,-112.024,55.951,55.951) ENVELOPE(-112.094,-112.094,55.897,55.897) |
geographic |
Canada Fort McMurray Mariana Lake |
geographic_facet |
Canada Fort McMurray Mariana Lake |
genre |
Carex aquatilis Fort McMurray Rubus chamaemorus |
genre_facet |
Carex aquatilis Fort McMurray Rubus chamaemorus |
_version_ |
1800871188093730816 |