Data Package Metadata   View Summary

Multiple Element Limitation in Northeast Hardwood Ecosystems (MELNHE): Net N mineralization at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2009 - 2017

General Information
Data Package:
Local Identifier:knb-lter-hbr.164.3
Title:Multiple Element Limitation in Northeast Hardwood Ecosystems (MELNHE): Net N mineralization at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2009 - 2017
Alternate Identifier:hbr0164
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The Multiple Element Limitation in Northern Hardwood Ecosystems (MELNHE) project studies N and P acquisition and limitation through a series of nutrient manipulations in northern hardwood forests. This data set includes net N mineralization measured in Oe, Oa, and mineral soil horizons in all 13 of the MELNHE study sites. Samples are collected every several years, beginning with pretreatment (2008 and 2009) through 2014, representing 3 years of N and P fertilization.

Additional detail on the MELNHE project, including a datatable of site descriptions and a pdf file with the project description and diagram of plot configuration can be found in this data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-hbr&identifier=344

These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

Short Name:MELNHE NMin
Publication Date:2023-11-09
For more information:
Visit: http://data.hubbardbrook.org/data/dataset.php?id=164
Visit: DOI PLACE HOLDER

Time Period
Begin:
2009-06-21
End:
2017-07-01

People and Organizations
Contact:Information Manager, Hubbard Brook LTER [  email ]
Creator:Fisk, Melany (Miami University)

Data Entities
Data Table Name:
MELNHE_Nmin_2009-2017
Description:
Nitrogen mineralization at MELNHE sites
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-hbr/164/3/ac58b2321435b21a461cb1cae66406af
Name:MELNHE_Nmin_2009-2017
Description:Nitrogen mineralization at MELNHE sites
Number of Records:236
Number of Columns:20

Table Structure
Object Name:MELNHE_Nmin_2009-2017.csv
Size:26100 byte
Authentication:dbf8bad3d2761e33309d013452b7ba4f Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 
Column Name:Site  
Age  
Stand  
Plot  
Treatment  
Year  
Date  
Days_Inc  
OeNmin  
OaNmin  
MinNmin  
OeNitr  
OaNitr  
MinNitr  
OeNO3i  
OaNO3i  
MinNO3i  
OeTNi  
OaTNi  
MinTNi  
Definition:Research siteStand AgeStand namePlot numberFertilization treatmentYear of sample collection.Date of sample collection.Length of soil incubation in days.Net N mineralization rate in the Oe horizon as ug N/g soil/dayNet N mineralization rate in the Oa horizon as ug N/g soil/dayNet N mineralization rate in the surface 10 cm of mineral soil as ug N/g soil/dayNet nitrification rate in the Oe horizon as ug N/g soil/dayNet nitrification rate in the Oa horizon as ug N/g soil/dayNet nitrification rate in the surface 10 cm of mineral soil as ug N/g soil/dayNO3 concentration in time-zero extracts from the Oe horizon as ug N/g soilNO3 concentration in time-zero extracts from the Oa horizon as ug N/g soilNO3 concentration in time-zero extracts from the surface 10 cm of mineral soil as ug N/g soilNH4 plus NO3 concentration in time-zero extracts from the Oe horizon as ug N/g soilNH4 plus NO3 concentration in time-zero extracts from the Oa horizon as ug N/g soilNH4 plus NO3 concentration in time-zero extracts from the surface 10 cm of mineral soil as ug N/g soil
Storage Type:               float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Measurement Type:nominalordinalnominalordinalnominaldateTimedateTimeratioratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeBartlett
DefinitionBartlett Experimental Forest
Source
Code Definition
CodeW101
DefinitionHubbard Brook Experimental Forest Watershed 101
Source
Code Definition
CodeJB
DefinitionJeffers Brook
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeMature
Definition100 years old
Source
Code Definition
CodeMid
Definition30 years old
Source
Code Definition
CodeYoung
Definition20 years old
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeC1
DefinitionStand C1 Bartlett Experimental Forest
Source
Code Definition
CodeC2
DefinitionStand C2 Bartlett Experimental Forest
Source
Code Definition
CodeC3
DefinitionStand C3 Bartlett Experimental Forest
Source
Code Definition
CodeC4
DefinitionStand C4 Bartlett Experimental Forest
Source
Code Definition
CodeC5
DefinitionStand C5 Bartlett Experimental Forest
Source
Code Definition
CodeC6
DefinitionStand C6 Bartlett Experimental Forest
Source
Code Definition
CodeC7
DefinitionStand C7 Bartlett Experimental Forest
Source
Code Definition
CodeC8
DefinitionStand C8 Bartlett Experimental Forest
Source
Code Definition
CodeC9
DefinitionStand C9 Bartlett Experimental Forest
Source
Code Definition
CodeM
DefinitionMid-aged stand, Hubbard Brook Watershed 101 or Jeffers Brook
Source
Code Definition
CodeO
DefinitionMature stand, Hubbard Brook Watershed 101 or Jeffers Brook
Source
Code Definition
CodeY
DefinitionYoung stand, Hubbard Brook Watershed 101 or Jeffers Brook
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code1
DefinitionPlot 1 of 4 within a stand
Source
Code Definition
Code2
DefinitionPlot 2 of 4 within a stand
Source
Code Definition
Code3
DefinitionPlot 3 of 4 within a stand
Source
Code Definition
Code4
DefinitionPlot 4 of 4 within a stand
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codenone
Definitionno treatment
Source
Code Definition
CodeN
DefinitionNitrogen fertilization
Source
Code Definition
CodeNP
DefinitionNitrogen and phosphorous fertilization
Source
Code Definition
CodeP
DefinitionPhosphorous fertilization
Source
Code Definition
CodeCon
DefinitionControl plot
Source
FormatYYYY
Precision
FormatYYYY-MM-DD
Precision
UnitnominalDay
Typewhole
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGramPerDay
Typereal
UnitmicrogramPerGram
Typereal
UnitmicrogramPerGram
Typereal
UnitmicrogramPerGram
Typereal
UnitmicrogramPerGram
Typereal
UnitmicrogramPerGram
Typereal
UnitmicrogramPerGram
Typereal
Missing Value Code:                
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Code-999.99
ExplData not available
Accuracy Report:                                        
Accuracy Assessment:                                        
Coverage:                                        
Methods:                                        

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
Hubbard Brook Ecosystem Study LTERBartlett Experimental Forest, HBEF Watershed 101, HBR, Hubbard Brook LTER, Jeffers Brook, mineral horizon, nitrogen fertilization, Oa horizon, Oe horizon, phosphorous fertilization
LTER Core Research Areasdisturbance, inorganic nutrients
LTER Controlled Vocabularynitrogen mineralization, phosphorus, soil, nitrification

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:
MELNHE Overview Although temperate forests are generally thought of as N-limited, resource optimization theory predicts that ecosystem productivity should be co-limited by multiple nutrients. These ideas are represented in the Multi-Element Limitation (MEL) model (Rastetter et al. 2012). To test the patterns of resource limitation predicted by MEL, we are conducting nutrient manipulations in three study sites in New Hampshire: Bartlett Experimental Forest, Hubbard Brook Experimental Forest, and Jeffers Brook in the White Mountain National Forest. Additional project information can be found at http://www.esf.edu/melnhe/default.htm Site Description At Bartlett, we have three replicate stands of three ages, young (~20 y), mid-aged (30), and mature (>100 years). We have identified stands at Hubbard Brook and Jeffers Brook that corresponds to the mid-aged and mature stands at Bartlett, for 4 more stands. Each of the 13 stands has four 1/4 ha (50 m x 50 m) treatment plots, treated annually beginning in spring 2011, with N (30 kg N/ha/yr as NH4NO3), P (10 kg P/ha/yr as NaH2PO4), N+P, or nothing (an untreated control). Five stands also have a Ca treatment plot (1150 kg Ca/ha in the form of CaSiO3). We are monitoring stem diameter, leaf area, sap flow, foliar chemistry, leaf litter production and chemistry, foliar nutrient resorption, root biomass and production, mycorrhizal associations, soil respiration, heterotrophic respiration, N and P availability, N mineralization, soil phosphatase activity, soil carbon and nitrogen, nutrient uptake capacity of roots, and mineral weathering. This data set includes N mineralization data. Sampling Design In 2008 and 2009 (pretreatment), approximately 30, 2-cm diameter soil cores were collected throughout each plot and composited by horizon in order to best represent the average condition of each plot. Beginning in 2010 (also pretreatment), we established 4 soil sampling subplots in each plot in order to confine the disturbance associated with sampling and at the same time ensure that repeated sampling was always done in the same general area. In 2010 and thereafter 3-4 soil cores were collected in each soil sampling subplot and divided into horizons (Oe, Oa, 10 cm of mineral). All cores in one plot (12-16 total, from the 4 subplots) were mixed together within each horizon and homogenized for one composite sample per horizon per plot. The mineral soil horizon was not sampled in all years. Laboratory Procedures Samples were refrigerated until processing, and were processed within 4 days of collection (usually processed the day after collection). Samples were homogenized by gentle separation of organic fragments over a 4-mm sieve followed by thorough mixing. Fragments > 4 mm were not included. Soil moisture content was determined by drying subsamples at 60 degrees C to constant mass. Time-zero subsamples were extracted in 2M KCl, allowed to settle overnight (12-16 hr), and filtered. Paired subsamples were incubated in mason jars at 15-18 degrees C for approximately 21 days, and then were extracted in the same manner as time-zero samples. Time-zero and incubated soil extracts were analyzed for NH4+ and NO3- concentrations using a Lachat autoanalyzer. Net N mineralization was calculated as the difference between incubated and time-zero NH4+ plus NO3- concentrations per g dry soil per day, and net nitrification was calculated as the difference between incubated and time-zero NO3- concentrations per g dry soil per day.

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@edirepository.org
Web Address:
https://edirepository.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Melany Fisk
Organization:Miami University
Address:
Miami University,
Department of Biology 212 Pearson Hall,
Oxford, Ohio 45056 US
Email Address:
fiskmc@miamioh.edu
Id:https://orcid.org/0000-0003-4248-0180
Id:https://ror.org/05nbqxr67
Contacts:
Position:Information Manager, Hubbard Brook LTER
Address:
234 Mirror Lake Road,
North Woodstock, NH 03262 USA
Phone:
(603) 726-8902 (voice)
Email Address:
hbr-im@lternet.edu
Web Address:
http://www.hubbardbrook.org

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2009-06-21
End:
2017-07-01
Geographic Region:
Description:HBEF 101 MELNHE Plots
Bounding Coordinates:
Northern:  43.9390Southern:  43.9355
Western:  -71.7404Eastern:  -71.7369
Geographic Region:
Description:Jeffers Brook MELNHE Plots
Bounding Coordinates:
Northern:  44.0380Southern:  44.0340
Western:  -71.8910Eastern:  -71.8880
Geographic Region:
Description:Barlett MELNHE Plots
Bounding Coordinates:
Northern:  44.0610Southern:  44.0360
Western:  -71.3230Eastern:  -71.2650

Project

Parent Project Information:

Title:Multiple Element Limitation in Northeast Hardwood Ecosystems (MELNHE)
Personnel:
Individual: Melany Fisk
Organization:Miami University
Address:
Miami University,
Department of Biology 212 Pearson Hall,
Oxford, Ohio 45056 US
Email Address:
fiskmc@miamioh.edu
Id:https://orcid.org/0000-0003-4248-0180
Id:https://ror.org/05nbqxr67
Individual: Ruth D Yanai
Organization:SUNY-ESF
Address:
SUNY College of Environmental Science and Forestry,
210 Marshall Hall,
Syracuse, NY 13210
Email Address:
rdyanai@syr.edu
Id:https://orcid.org/0000-0001-6987-2489
Id:https://ror.org/00qv0tw17
Additional Award Information:
Funder:National Science Foundation
Funder ID:https://ror.org/021nxhr62
Number:1637685
Title:LTER: Long Term Ecological Research at the Hubbard Brook Experimental Forest (2016)
URL:https://www.nsf.gov/awardsearch/showAward?AWD_ID=1637685
Additional Award Information:
Funder:National Science Foundation
Funder ID:https://ror.org/021nxhr62
Number:1633026
Title:Long-Term Ecological Research at the Hubbard Brook Experimental Forest (2016b)
URL:https://www.nsf.gov/awardsearch/showAward?AWD_ID=1633026
Additional Award Information:
Funder:National Science Foundation
Funder ID:https://ror.org/021nxhr62
Number:1114804
Title:Long-Term Ecological Research at Hubbard Brook Experimental Forest (2010)
URL:https://www.nsf.gov/awardsearch/showAward?AWD_ID=1114804
Additional Award Information:
Funder:National Science Foundation
Number:0949324
Title:Collaborative Research: Nutrient co-limitation in young and mature northern hardwood forests
Additional Award Information:
Funder:USDA National Institute of Food and Agriculture
Number:2019-67019-29464
Title:Soil Nutrient Limitation of Northern Hardwood Forest Productivity: Mechanisms Contributing to N and P co-Limitations (2019)

Maintenance

Maintenance:
Description:Future sampling may occur, but has not been scheduled at the time of this data publication
Frequency:unknown
Other Metadata

Additional Metadata

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Additional Metadata

additionalMetadata
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