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Sphagnum fuscum Growth and N Concentration in an Alberta Peatland Subjected to Increasing Nitrogen Deposition, 2011-2015

General Information
Data Package:
Local Identifier:edi.262.2
Title:Sphagnum fuscum Growth and N Concentration in an Alberta Peatland Subjected to Increasing Nitrogen Deposition, 2011-2015
Alternate Identifier:DOI PLACE HOLDER
Abstract:

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 NH4NO3) 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). Data collected of the growing season using the crank wire method allowed for the calculation of NPP. Tissues were also collected and analyzed on Leco TruSpec CN analyzer. Increasing N addition had no effect on Sphagnum fuscum NPP in year 1, but inhibited S. fuscum NPP in years 2-5, with capitula N concentrations remaining consistent across all years, but with stem N concentrations increasing with N input. The decrease in S. fuscum NPP with increasing N addition that we report for Mariana Lakes Bog has implications for peat accumulation in bogs.

Publication Date:2019-01-08

Time Period
Begin:
2011-05-31
End:
2015-09-20

People and Organizations
Contact:Wieder, Kelman R (Villanova University) [  email ]
Creator:Wieder, Kelman R (Villanova University)
Creator:Vitt, Dale H (Southern Illinois University)
Creator:Vile, Melanie A (Villanova University)
Creator:Graham, Jeremy A (Southern Illinois University)
Creator:Hartsock, Jeremy A (Southern Illinois University)
Creator:Fillingim, Hope (Villanova University)
Creator:House, Melissa (Southern Illinois University)
Creator:Quinn, James C (Villanova University)
Creator:Scott, Kimberli D (Villanova University)
Creator:Petix, Meaghan (Southern Illinois University)
Creator:McMillen, Kelly J (Villanova University)

Data Entities
Data Table Name:
Sphagnum_fuscum_growth_and_N_data.csv
Description:
Sphagnum fuscum Growth and N
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/262/2/d84dcecd5f04151d89d6728534ea4885
Name:Sphagnum_fuscum_growth_and_N_data.csv
Description:Sphagnum fuscum Growth and N
Number of Records:104
Number of Columns:8

Table Structure
Object Name:Sphagnum_fuscum_growth_and_N_data.csv
Size:3905 byte
Authentication:dc0b79055c15e2e2c4c739775e94ed3c Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\r
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 
Column Name:YEAR  
NTRT  
ARM  
NET_PRIMARY_PRODUCTION  
STEM_MASS_DENSITY  
PLANT_DENSITY  
STEM_N_CONCENTRATION  
N_ASSIMILATED  
Definition:Year of growth: 2011-2015Field experimental N treatments were made with 8 applications per plot per year between mid May and mid August of each yearExperimental plots were located along 3 arms; each arm had one replicate each of 8 N treatmentsThe product of moss linear growth of stems (cm yr-1) and stem mass density (SMD)Mass of 1-cm lengths of Sphagnum stems beneath the capitula per m2Number of plants/areaN concentration in the 0-2 cm stem sectionsAmount of N used and stored per area of moss cover per year
Storage Type:date  
string  
string  
float  
float  
float  
float  
float  
Measurement Type:dateTimenominalnominalratioratioratioratioratio
Measurement Values Domain:
FormatYYYY
Precision
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeC
DefinitionControl, no water, no N added
Source
Code Definition
Code0
Definition0 kg N/ha/yr added as NH4NO3
Source
Code Definition
Code5
Definition5 kg N/ha/yr added as NH4NO3
Source
Code Definition
Code10
Definition10 kg N/ha/yr added as NH4NO3
Source
Code Definition
Code15
Definition15 kg N/ha/yr added as NH4NO3
Source
Code Definition
Code20
Definition20 kg N/ha/yr added as NH4NO3
Source
Code Definition
Code25
Definition25 kg N/ha/yr added as NH4NO3
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code1
DefinitionArm 1
Source
Code Definition
Code2
DefinitionArm 2
Source
Code Definition
Code3
DefinitionArm3
Source
UnitgramsPerMeterSquaredPerYear
Typereal
Min39.4 
Max540.7 
UnitgramsPerSquaredMeterPerCentimeter
Typereal
Min29.5 
Max268.8 
UnitnumberPerMeterSquared
Typenatural
Min20191 
Max87719 
UnitmilligramsPerGram
Typereal
Min6.83 
Max12.92 
UnitgramsPerMeterSquaredPerYear
Typereal
Min0.4 
Max5.26 
Missing Value Code:
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Code-99999
ExplMissing value
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Data Package Usage Rights

This data package is released to the “public domain” under Creative Commons CC0 1.0 “No Rights Reserved” (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein “website”) in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available “as is” and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)Villanova Peatland Biogeochemistry Group, bog, peat, NPP, nitrogen, capitula

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Net primary production (NPP) of Sphagnum fuscum is the product of linear growth of stems (cm yr-1) and stem mass density (SMD), with SMD defined as the mass of 1-cm lengths of Sphagnum stems beneath the capitula per m2. We measured linear growth using the cranked wire method (Clymo 1970). We set 30 cranked wires in each of the 21 study plots, with all wires placed in hummocks dominated by S. fuscum. Each year, from 2011 through 2015, we set cranked wires in May after the surface peat had thawed, and remeasured them at the end of the growing season (in late September or early October).

To measure SMD, we collected surface cores (6.5 cm diam.) from S. fuscum hummocks in each plot between July 7th and 10th of each year. From each core, we removed and counted all capitula to determine S. fuscum plant density (individual plants m-2). We separated 70 stems of S. fuscum, cut them into 2-cm lengths, and weighed them after drying at 55 C for 5 days. These weights divided by 2 and again by 70 represent the average mass of a 1-cm stem of an individual Sphagnum plant; this value was multiplied by plant density to yield SMD.

From cores collected in early July and early October from 2013 through 2015, we calculated capitulum mass density (CMD) (g m-2) as the dry mass of all capitula from a core, scaled up to a m2 basis. Capitula and stems were dried, homogenized in a Thomas Wiley Mini-Mill, and analyzed for N concentration on a Flash EA 1112 Series CN Soil Analyzer.

We calculated the amount of N annually utilized by S. fuscum to satisfy NPP requirements (g N m-2 yr-1) as the product of S. fuscum NPP and the N concentration in the 0-2 cm stem sections. For both summer and fall collections, we calculated the quantity of N stored in S. fuscum capitula (g N m-2) as the product of CMD and N concentration in the capitula.

People and Organizations

Creators:
Individual: Kelman R Wieder
Organization:Villanova University
Email Address:
kelman.wieder@villanova.edu
Id:https://orcid.org/0000-0001-5856-8473
Individual: Dale H Vitt
Organization:Southern Illinois University
Individual: Melanie A Vile
Organization:Villanova University
Email Address:
mvile@villanova.edu
Individual: Jeremy A Graham
Organization:Southern Illinois University
Email Address:
jeremyg@mtu.edu
Individual: Jeremy A Hartsock
Organization:Southern Illinois University
Email Address:
hartsock@siu.edu
Individual: Hope Fillingim
Organization:Villanova University
Email Address:
fillingimhope@gmail.com
Individual: Melissa House
Organization:Southern Illinois University
Email Address:
mhouse@siu.edu
Individual: James C Quinn
Organization:Villanova University
Email Address:
jcqui03@gmail.com
Individual: Kimberli D Scott
Organization:Villanova University
Email Address:
kscott@villanova.edu
Individual: Meaghan Petix
Organization:Southern Illinois University
Email Address:
meaghan.petix@wsu.edu
Individual: Kelly J McMillen
Organization:Villanova University
Email Address:
Kelly.Mcmillen@ttu.edu
Contacts:
Individual: Kelman R Wieder
Organization:Villanova University
Email Address:
kelman.wieder@villanova.edu
Id:https://orcid.org/0000-0001-5856-8473

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
2011-05-31
End:
2015-09-20
Sampling Site: 
Description:Alberta, Canada, 100 km south of Fort McMurray, Canada
Site Coordinates:
Longitude (degree): -112.094Latitude (degree): 55.895
Taxonomic Range:
Classification:
Rank Name:kingdom
Rank Value:Plantae
Classification:
Rank Name:subkingdom
Rank Value:Viridiplantae
Classification:
Rank Name:infrakingdom
Rank Value:Streptophyta
Classification:
Rank Name:superdivision
Rank Value:Embryophyta
Classification:
Rank Name:division
Rank Value:Bryophyta
Classification:
Rank Name:class
Rank Value:Sphagnopsida
Classification:
Rank Name:order
Rank Value:Sphagnales
Classification:
Rank Name:family
Rank Value:Sphagnaceae
Classification:
Rank Name:genus
Rank Value:Sphagnum
Classification:
Rank Name:species
Rank Value:Sphagnum fuscum

Project

Parent Project Information:

Title:Nitrogen Addition Experiments in Boreal Ecosystems: Understanding the Fate of Atmospherically Deposited Nitrogen in order to Determine Nitrogen Critical Loads
Personnel:
Individual: Kelman Wieder
Email Address:
kelman.wieder@villanova.edu
Id:https://orcid.org/0000-0001-5856-8473
Role:Principal Investigator
Funding: Cumulative Environmental Management Association (CEMA): 2011-0003

Maintenance

Maintenance:
Description:completed
Frequency:
Other Metadata

Additional Metadata

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        |     |     |     |  \___attribute 'parentSI' = 'kilogramsPerSquaredMeterPerMeter'
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