Data Package Metadata View Summary

Multiple Element Limitation in Northern Hardwood Experiment (MELNHE): Soil respiration at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2008 - present

General Information

Data Package:
Local Identifier:	knb-lter-hbr.269.2
Title:	Multiple Element Limitation in Northern Hardwood Experiment (MELNHE): Soil respiration at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2008 - present
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Abstract Soil respiration in 15 stands across 3 sites within the White Mountain National Forest was measured between 2008 and 2020. Stands included in the dataset are part of the Multiple Element in Northern Hardwood Ecosystems (MELNHE) study, a full-factorial NxP fertilization experiment that began in 2011. Soil temperature, soil moisture, and relative air humidity at the time of measurement were also recorded next to or above the soil respiration collar at the time of the soil respiration measurement. Having been cut between 1883 and 1990, stands are representative of different successional stages.
Publication Date:	2021-07-28

Time Period

Begin:

2008-07-01

End:

2020-07-25

People and Organizations
Contact:	Hubbard Brook Ecosystem Study [ email ]
Creator:	Fahey, Timothy J (Cornell University)
Creator:	Yanai, Ruth D (SUNY-ESF)

Data Entities
Data Table Name:	MELNHE_soil_respiration
Description:	MELNHE soil respiration - 2008-2020

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-hbr/269/2/faae6482422d1a06f6d787376d122725
Name:	MELNHE_soil_respiration
Description:	MELNHE soil respiration - 2008-2020
Number of Records:	16651
Number of Columns:	13

Table Structure

Object Name:

MELNHE_soil_respiration.csv

Size:

890763 bytes

Authentication:

00f08180d28d937a7a4ec5bbdab1ae85 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Column Name:

date

stand

plot

treatment

collar

offset

flux

flux.cv

temperature

moisture

humidity

time

notes

Definition:

Date of measurement

Identifier for the stand in which measurement was taken. Each stand has 3-5 plots

Numeric identifier for the plot in which measurement was taken

Treatment applied to the plot in which measurement was taken

Identifier for the collar at which measurement was taken

Distance between top of compressed forest floor and top of the collar at which measurement was taken

Measured rate of carbon dioxide efflux from soil

Coefficient of variance (CV) for the efflux reading

Soil temperature measured at a depth of 10 cm at time of efflux measurement

Soil moisture measured at a depth of 16 cm at time of efflux measurement

Relative air humidity within the chamber of the LiCOR 8100 at the time of efflux measurement

Time of day at the time of efflux measurement

Notes taken at the time of efflux measurement

Storage Type:

date

string

float

date

string

Measurement Type:

dateTime

nominal

ratio

dateTime

nominal

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C1
Definition	Bartlett Experimental Forest young stand cut in 1990
Source

Code Definition

Code	C2
Definition	Bartlett Experimental Forest young stand cut in 1988
Source

Code Definition

Code	C3
Definition	Bartlett Experimental Forest mid-aged stand cut in 1985
Source

Code Definition

Code	C4
Definition	Bartlett Experimental Forest mid-aged stand cut in 1978
Source

Code Definition

Code	C5
Definition	Bartlett Experimental Forest mid-aged stand cut in 1976
Source

Code Definition

Code	C6
Definition	Bartlett Experimental Forest mid-aged stand cut in 1975
Source

Code Definition

Code	C7
Definition	Bartlett Experimental Forest mature stand cut around 1890
Source

Code Definition

Code	C8
Definition	Bartlett Experiemental Forest mature aged stand clearcut in 1883
Source

Code Definition

Code	C9
Definition	Bartlett Experimental Forest mature stand cut in 1890
Source

Code Definition

Code	HBM
Definition	Hubbard Brook Experimental Forest mid-aged stand cut in 1970
Source

Code Definition

Code	HBO
Definition	Hubbard Brook Experimental Forest mid-aged stand cut between 1911 and 1913
Source

Code Definition

Code	JBM
Definition	Jeffers Brook mid-aged stand cut around 1974
Source

Code Definition

Code	JBO
Definition	Jeffers Brook mature stand cut between 1915 and 1929
Source

Definition

Numeric identifier for the plot in which measurement was taken

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Con
Definition	Control plot with no nutrient addition
Source

Code Definition

Code	N
Definition	Nitrogen nutrient addition plot
Source

Code Definition

Code	P
Definition	Phosphorus nutrient addition plot
Source

Code Definition

Code	NP
Definition	Nitrogen and Phosphorus nutrient addition plot
Source

Code Definition

Code	Ca
Definition	Calcium nutrient addition plot
Source

Definition

Identifier for the collar at which measurement was taken

Definition

Distance between top of compressed forest floor and top of the collar at which measurement was taken

Unit	micromolePerMeterSquaredPerSecond
Type	real
Min	-0.21
Max	578

Unit	number
Type	real
Min	0.1
Max	15.9

Unit	celsius
Type	real
Min	-1.225
Max	65.66

Unit	volt
Type	real
Min	0
Max	41381

Unit	percent
Type	real
Min	0.79
Max	7715

Format	hh:mm:ss
Precision

Definition

Notes taken at the time of efflux measurement

Missing Value Code:

Code	NA
Expl	data not available

Code	NA
Expl	data not available

Code	NA
Expl	data not available

Code	NA
Expl	data not available

Code	NA
Expl	data not available

Code	NA
Expl	data not available

Code	NA
Expl	data 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:
LTER Controlled Vocabulary	ecosystems, forests, watersheds, nutrients, nutrient limitation, soil, respiration, carbon cycling
LTER Core Research Area	disturbance
HBES Vocabulary	HBR, Hubbard Brook LTER, Hubbard Brook Experimental Forest, Hubbard Brook Ecosystem Study, HBES, HBEF, New Hampshire, NH, White Mountain National Forest, MELNHE, Multiple Element Limitation in Northern Hardwood Ecosystems, Bartlett Experimental Forest, Jeffers Brook
ISO 19115 Topic Category	biota
National Research & Development Taxonomy	Ecology, Ecosystems, & Environment

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:

Methods

Soil CO₂ efflux (soil respiration) was measured in 15 stands across three sites in the White Mountain National Forest between 2008 and 2020. Sites included Bartlett Experimental Forest, Hubbard Brook Experimental Forest, and a location near Jeffers Brook in Benton, NH. The study stands are part of the Multiple Element Limitation in Northern Hardwood Ecosystems (MELNHE) study. Within each of the 13 stands are four treatment plots, each of which has received one of four nutrient treatments annually beginning in 2011: N addition (3 g N m-2 yr-1 in the form of granular NH4NO3), P addition (1 g P m-2 yr-1 in the form of granular NaH2PO4), N plus P (at the same rates), or neither (control). In 10 stands, plots measure 50 m x 50 m including a 10 m buffer on each side to ensure that trees with roots that extend beyond the 30x30 measurement area receive the full fertilization. In two of the mid-successional stands (HBM and JBM), each plot measures 30 m x 30 m including a 5 m buffer. In one early successional stand (C2), each plot measures 45 m x 45 m including a 7.5 m buffer.

In 2008, the LiCOR 6400 system was used for soil respiration measurements, and in each subsequent year, the LiCOR 8100 FCO₂ system was used (Licor Biosciences, Lincoln, NE). Measurements were made between 9 AM and 4 PM with most falling between the hours of 10 AM and 2 PM. The number of measurements recorded and the stands in which they were made varied across years. In 2008, ten collars were haphazardly arranged in each plot, and in 2009, those collars were removed and replaced with five collars, also haphazardly arranged in each plot. Locations near boles, boulders, large roots, and areas that would collect water were avoided when placing collars. In 2009 and each subsequent year, soil respiration was measured at each collar with a single 90-second reading. In 2010, those collars were removed and systematically arranged in their final locations. In 2014, two additional collars were added to each plot in 7 systematic locations. Soil temperature was measured simultaneously with soil respiration using a handheld resistance thermometer at a depth of 10 cm adjacent to each collar. Soil moisture was occasionally measured next to the collar at the time of the soil respiration measurement using a soil moisture probe attached to the auxiliary sensor interface of the LiCOR device. Relative air humidity was infrequently measured within the chamber of the LiCOR device at the time of the soil respiration measurement.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Creators:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Individual:

Ruth D Yanai

Organization:

SUNY-ESF

Email Address:

rdyanai@syr.edu

Id:

https://orcid.org/0000-0001-6987-2489

Contacts:

Organization:

Hubbard Brook Ecosystem Study

Email Address:

hbr-im@lternet.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2008-07-01

End:

2020-07-25

Geographic Region:

Description:

Hubbard Brook Experimental Forest Watershed 101 MELNHE Plots

Bounding Coordinates:

Northern:	43.939	Southern:	43.9355
Western:	-71.7404	Eastern:	-71.7369

Geographic Region:

Description:

Bartlett Experimental Forest MELNHE Plots

Bounding Coordinates:

Northern:	44.061	Southern:	44.036
Western:	-71.323	Eastern:	-71.265

Geographic Region:

Description:

Jeffers Brook MELNHE Plots

Bounding Coordinates:

Northern:	44.038	Southern:	44.034
Western:	-71.891	Eastern:	-71.888

Project

Parent Project Information:

Title:

Long-Term Ecological Research at Hubbard Brook Experimental Forest (1988)

Personnel:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 8702331

Related Project:

Title:

Long-term Ecological Research (LTER) at the Hubbard Brook Experimental Forest (1992)

Personnel:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 9211768

Related Project:

Title:

LTER: Hubbard Brook Experimental Forest (1998)

Personnel:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 9810221

Related Project:

Title:

Long-Term Ecological Research (LTER) at Hubbard Brook Experimental Forest (HBR-LTER) (2005)

Personnel:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 0423259

Related Project:

Title:

Long-Term Ecological Research at Hubbard Brook Experimental Forest (2010)

Personnel:

Individual:

Timothy J Fahey

Organization:

Cornell University

Email Address:

tjf5@cornell.edu

Id:

https://orcid.org/0000-0003-1283-1162

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 1114804

Related Project:

Title:

LTER: Long Term Ecological Research at the Hubbard Brook Experimental Forest (2016)

Personnel:

Individual:

Gary M Lovett

Organization:

Cary Institute of Ecosystem Studies

Email Address:

lovettg@caryinstitute.org

Id:

https://orcid.org/0000-0002-8411-8027

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 1637685

Related Project:

Title:

Long-Term Ecological Research at the Hubbard Brook Experimental Forest (2016)

Personnel:

Individual:

Gary M Lovett

Organization:

Cary Institute of Ecosystem Studies

Email Address:

lovettg@caryinstitute.org

Id:

https://orcid.org/0000-0002-8411-8027

Role:

Principal Investigator

Funding:

National Science Foundation (NSF) 1633026

Related Project:

Title:

Collaborative Research: Nutrient co-limitation in young and mature northern hardwood forests

Personnel:

Individual:

Ruth D Yanai

Organization:

SUNY-ESF

Email Address:

rdyanai@syr.edu

Id:

https://orcid.org/0000-0001-6987-2489

Role:

Principal Investigator

Funding:

NSF 0949324

Related Project:

Title:

Soil Nutrient Limitation of Northern Hardwood Forest Producticity: Mechanisms Contributing

Personnel:

Individual:

Ruth D Yanai

Organization:

SUNY-ESF

Email Address:

rdyanai@syr.edu

Id:

https://orcid.org/0000-0001-6987-2489

Role:

Principal Investigator

Funding:

USDA National Institute of Food and Agriculture 2019-67019-29464

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
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        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'micromolePerMeterSquaredPerSecond'
        |     |     |     |  \___attribute 'name' = 'micromolePerMeterSquaredPerSecond'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = ''
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'micromolePerMeterSquaredPerSecond'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'name' = 'percent'
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        |     |     |     |___text '\n          '
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        |     |     |     |     |___text 'percent'
        |     |     |     |___text '\n        '
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Data Package Metadata View Summary

Multiple Element Limitation in Northern Hardwood Experiment (MELNHE): Soil respiration at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2008 - present

Data Entities

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

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

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Multiple Element Limitation in Northern Hardwood Experiment (MELNHE): Soil respiration at Hubbard Brook Experimental Forest, Bartlett Experimental Forest and Jeffers Brook, central NH USA, 2008 - present

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

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

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata