Point Frame Measurements of 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 . 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/366/1 2024-06-03T18:46:50+00:00 Point Frame Measurements of 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 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: 2011-07-17T00:00:00Z ENDDATE: 2015-07-19T00:00:00Z 2019-04-12T00:00:00Z https://pasta.lternet.edu/package/metadata/eml/edi/366/1 unknown Environmental Data Initiative Villanova Peatland Biogeochemistry Group frequency bogs mosses nitrogen vascular plants 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). 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 decreased frequency of S. fuscum in the third through fifth year of N addition (Fig. 10A) and an increased frequency of S. magellanicum in the second through fifth year of N addition Dominant shrubs, all shrubs, and all vascular plant species frequencies generally increased with increasing N input, with those increases all significant in 2013-2015 (Fig. 10 G-I). Water addition alone had no significant effect on the frequency of vascular plant species or groups in any of the five years (p >= 0.12). At Mariana Lakes Bog, we observed changes in vegetation even at low experimental N loadings, with vegetation progressively changing over the 5 years of the study (Figs. 10,11). 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 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 frequency bogs mosses nitrogen vascular plants |
spellingShingle |
Villanova Peatland Biogeochemistry Group frequency bogs mosses nitrogen vascular plants 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 Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
topic_facet |
Villanova Peatland Biogeochemistry Group frequency bogs mosses nitrogen vascular plants |
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). 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 decreased frequency of S. fuscum in the third through fifth year of N addition (Fig. 10A) and an increased frequency of S. magellanicum in the second through fifth year of N addition Dominant shrubs, all shrubs, and all vascular plant species frequencies generally increased with increasing N input, with those increases all significant in 2013-2015 (Fig. 10 G-I). Water addition alone had no significant effect on the frequency of vascular plant species or groups in any of the five years (p >= 0.12). At Mariana Lakes Bog, we observed changes in vegetation even at low experimental N loadings, with vegetation progressively changing over the 5 years of the study (Figs. 10,11). 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 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 |
Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_short |
Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_full |
Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_fullStr |
Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_full_unstemmed |
Point Frame Measurements of Moss and Vascular Frequencies Under Increasing N Deposition Over Five Years, 2011-2015 |
title_sort |
point frame measurements of moss and vascular frequencies under increasing n deposition over five years, 2011-2015 |
publisher |
Environmental Data Initiative |
publishDate |
2019 |
url |
https://pasta.lternet.edu/package/metadata/eml/edi/366/1 |
op_coverage |
Alberta, Canada, 100 km south of Fort McMurray, Canada ENVELOPE(-112.094,-112.094,55.895,55.895) BEGINDATE: 2011-07-17T00:00:00Z ENDDATE: 2015-07-19T00:00:00Z |
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_ |
1800871755005296640 |