Data Package Metadata View Summary

Nitrogen mineralization potential in soils collected from the Jornada Basin LTER-I transect and extracted at incubation time 0, 1989

General Information

Data Package:

Local Identifier:

knb-lter-jrn.210015003.56

Title:

Nitrogen mineralization potential in soils collected from the Jornada Basin LTER-I transect and extracted at incubation time 0, 1989

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

This data package contains nitrogen mineralization data from soils collected along the Jornada Basin LTER (LTER-I) transects in southern New Mexico, USA. These transects are located in a livestock exclosure established in 1982 in the Chihuahuan Desert Rangeland Research Center (CDRRC) and run from the middle of the College Playa up to the foot of Mt. Summerford (2.7 km in length). Prior to the exclosure, the study site was moderately to heavily grazed for the past 100 years. The Treatment transect was treated annually with ammonium nitrate fertilizer (NH4NO3 at 10g N/m2/yr) until 1987. Along each transect, 91 stations, each with a plant intercept line, are spaced at 30 meter intervals. For this dataset, 60 soil samples (total) were collected along the control and fertilized treatment transects and mixed with potassium chloride solution (KCl) on Nov 27, 1989, then filter extracted four days later to give a time = 0 incubation value. The dataset contains a soil moisture correction factor, sample weights, total inorganic nitrogen (NO3+NO2-N), and nitrogen in ammonium (NH4-N) for Week 0 of nitrogen mineralization potentials. The soil mineralization data complements the biomass harvest measurements that occurred in September 1989 (dataset knb-lter-jrn.210015001). This study is complete.

Publication Date:

2021-12-07

Language:

English

For more information:
Visit:	https://jrn.lternet.edu
Visit:	DOI PLACE HOLDER

Time Period

Begin:

1989

End:

1989

People and Organizations
Contact:	Jornada Basin LTER Information Manager (Jornada Basin LTER) [ email ]
Creator:	Whitford, Walter G (Jornada Basin LTER/New Mexico State University)
Associate:	Anderson, John (Jornada Basin LTER/New Mexico State University, associate)

Data Entities
Data Table Name:	N mineralization potential data - t0 extracts
Description:	Nitrogen mineralization data from t0 soil extracts
Other Name:	JRN DSD file (Dataset Documentation)
Description:	Early format Jornada dataset documentation metadata file

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210015003/56/eb69493d704f03c71ce4e0329574ae50
Name:	N mineralization potential data - t0 extracts
Description:	Nitrogen mineralization data from t0 soil extracts
Number of Records:	60
Number of Columns:	17

Table Structure

Object Name:

JRN015003_transect_soilmin_inc0.csv

Size:

4922 byte

Authentication:

8d9ad2a1679573c4e795d97b4ba22e42 Calculated By MD5

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Observation

Transect community

Transect treatment

Transect station

Transect side

Old sample id

Can number

Can weight

Wet weight

Dry weight

Moisture content

Correction factor

Sample weight

NO3+NO2-N

NH4-N

NO3+NO2-N

NH4-N

Column Name:

obs

tran_comm

tran_trt

tran_station

tran_side

samp_old

can_num

weight_can

weight_wet

weight_dry

h2o_percent

cor_fac

weight_sample

no3_no2_n_solution

nh4_n_solution

no3_no2_n_dry

nh4_n_dry

Definition:

Observation

Transect vegetation community

Transect treatment

Transect station

Transect side

Old sample id (Combination of tran_trt, tran_station, tran_side)

Soil Can Number

Can weight (g)

Wet Weight (soil + can)(g)

Dry Weight (soil + can) (g)

Moisture Content (%)

Soil moisture correction factor

Sample weight (g)

NO3+NO2-N wet basis (mg/l)

NH4-N wet basis (mg/l)

NO3+NO2-N dry basis (mg/kg)

NH4-N dry basis (mg/kg)

Storage Type:

integer

string

integer

string

integer

float

Measurement Type:

interval

nominal

interval

nominal

interval

ratio

Measurement Values Domain:

Unit	number
Type	integer

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	CB
Definition	Creosote bush vegetation sample
Source

Code Definition

Code	MB
Definition	Mixed basin vegetation sample
Source

Code Definition

Code	UG
Definition	Upper grassland vegetation sample
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C
Definition	Control - LTER transect
Source

Code Definition

Code	T
Definition	Fert Treatment - LTER transect
Source

Unit	number
Type	integer

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	B
Definition	Unknown code, possibly sampled Between shrubs or in Bare areas
Source

Code Definition

Code	E
Definition	East side of transect midline
Source

Code Definition

Code	U
Definition	Unknown code, possibly sampled Under shrub
Source

Code Definition

Code	W
Definition	West side of transect midline
Source

Definition

any text

Unit	number
Type	integer

Unit	gram
Type	real

Unit	gram
Type	real

Unit	gram
Type	real

Unit	percent
Type	real

Unit	fraction
Type	real

Unit	gram
Type	real

Unit	milligramPerLiter
Type	real

Unit	milligramPerLiter
Type	real

Unit	milligramPerKilogram
Type	real

Unit	milligramPerKilogram
Type	real

Missing Value Code:

Code	NA
Expl	Missing value - data not collected or otherwise unavailable

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

JRN DSD file (Dataset Documentation)

Entity Type:

otherEntity

Description:

Early format Jornada dataset documentation metadata file

Physical Structure Description:

Object Name:

biomas-0.dsd.txt

Size:

24294 byte

Authentication:

1b2f4ce60e7680c78daefd99b04e3b05 Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210015003/56/392ffff125b26f947b8cfc5727b5b805

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 Core Research Areas	inorganic nutrients, organic matter
LTER Controlled Vocabulary v1	LTER, fertilization, land use history, nitrogen, nitrogen mineralization, organic matter, soil nutrients, transects
none	LTER, mineralization potential
Jornada Basin LTER dataset keywords	LTER I, Plant, Nitrogen, and Micronutrients, completed
Jornada Basin project names	LTER-I Transect, study 015
Jornada Basin place names	CDRRC, LTER-I Transect

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:

History and experimental design

Starting in 1982, a 135 ha portion of a 1500 ha, internally drained, moderately-to-highly grazed watershed was exclosed from grazing by domestic livestock. Within this exclosure, three permanent, parallel transects (2.7 km in length) were established by the Jornada Basin LTER, extending from the middle of the College Playa up into the foot of Mt. Summerford at the Chihuahuan Desert Rangeland Research Center (CDRRC) in the Jornada Basin. The study site has a history of moderate to heavy livestock grazing for 100 years before 1982. The Control transect (C) is located on the west, the Treatment transect (T) is on the east side of the Control transect, and the Alternate Control (X) is to the east of the Treatment transect. The three transects pass through several soil and vegetation zones as they ascend from playa to mountain. Each transect is 30 meters wide with a 45-meter buffer zone between each transect. The Treatment transect was treated annually with NH4NO3 in a concentration equal to 10g N/m2 until 1987. On 17 July 1986 the Control Transect was aerially fertilized by mistake with granular NH4NO3 instead of the Treatment Transect. As a result of this mistake, the Alternate Control Transect was established prior to the fall measurements of 1986 and the Treatment Transect was subsequently fertilized by hand with a team of 12 persons using mechanical spreaders.

To measure the effects of nitrogen fertilizer on plant communities, plant intercept lines were established perpendicular to the permanent, 2.7 km transects. There are 91 station markers arranged at 30 meter intervals along each permanent transect, and each has a plant intercept line that extends 15 meters on either side of the transect. Soil samples were collected at 15 stations per transect for measurement of soil nitrogen mineralization potential.

Soil sampling, incubation and extraction methods

A total of 60 samples were collected from 30 stations. One composite sample was taken on each side of the transect midline, and consisting of 4 1-inch soil cores taken approximately 2m down from the plant line intercept line and spaced over 15m perpendicular to the transect. This was a total of 30 soil samples at 15 stations on each of the control and treatment transects.

Soil samples were collected on Nov 27 1989. For week 0 incubation data, 10 grams of soil from each station was aded to bottles containing 100 ml 2N KCl. Bottles were shaken vigourously, left on a table until Dec 1, and then the solutions were filtered through prewashed Whatman #42 filter paper into 60 ml bottles. Currently we have no methods available describing how the ammonium and total inorganic N values were determined from these extracts. Further incubations (2, 4 & 8 weeks) and extractions were planned, but were not carried out.

Additional files

An additional metadata file - biomas-0.dsd.txt - from the earlier Jornada information management system is included and may contain useful metadata.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Walter G Whitford

Organization:

Jornada Basin LTER/New Mexico State University

Address:

P.O. Box 30003; MSC 3JER New Mexico State University,

Las Cruces, NM 88003-8003 U.S.A.

Contacts:

Organization:

Jornada Basin LTER

Position:

Jornada Basin LTER Information Manager

Address:

P.O. Box 30003, MSC 3JER New Mexico State University,

Las Cruces, NM 88003-8003 USA

Phone:

575-646-1739

Email Address:

jornada.data@nmsu.edu

Web Address:

https://lter.jornada.nmsu.edu/information-management/

Associated Parties:

Individual:

John Anderson

Organization:

Jornada Basin LTER/New Mexico State University

Address:

P.O. Box 30003; MSC 3JER New Mexico State University,

Las Cruces, NM 88003-8003 U.S.A.

Email Address:

janderso@jornada.nmsu.edu

Id:

https://orcid.org/0000-0002-6417-8022

Role:

associate

Metadata Providers:

Organization:

Jornada Basin LTER

Address:

P.O. Box 30003; MSC 3JER New Mexico State University,

Las Cruces, NM 88003-8003 USA

Web Address:

https://lter.jornada.nmsu.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

1989

End:

1989

Geographic Region:

Description:

Western Bajada: Study occurred in the western bajada geomorphic zone in the Jornada Basin. More precise geographic coordinates for this study may be requested from the JRN LTER Data Manager (jornada.data@nmsu.edu).

Bounding Coordinates:

Northern:	32.542771	Southern:	32.467228
Western:	-106.851460	Eastern:	-106.729443

Geographic Region:

Description:

Basin Floor: Study occurred in the basin floor geomorphic zone in the Jornada Basin. More precise geographic coordinates for this study may be requested from the JRN LTER Data Manager (jornada.data@nmsu.edu).

Bounding Coordinates:

Northern:	32.749487	Southern:	32.473173
Western:	-106.872883	Eastern:	-106.692716

Project

Parent Project Information:

Title:

Jornada Basin LTER

Personnel:

Individual:

Dr. Walter Whitford

Address:

P.O. Box 30003, MSC 3JER,

New Mexico State University,

Las Cruces, NM 88003-8003 United States

Phone:

575-646-1739 (voice)

Email Address:

jornada.lter@nmsu.edu

Role:

Principal Investigator

Abstract:

The Jornada Basin Long-Term Ecological Research (LTER) program is part of a national network of long-term ecological research sites funded by the US National Science Foundation (NSF). The Jornada LTER program has been continuously funded since 1982 to develop general principles governing changes between grassland and shrubland ecosystems based on long-term data collected in the Chihuahuan Desert. We translate our findings to dryland ecosystems around the world, and forecast the dynamics of future ecosystem states in response to changing climate and land use.

Funding:

At the time of this study, JRN LTER was funded by the National Science Foundation under award DEB 8114466 (LTER-I).

Maintenance

Maintenance:

Description:	competed
Frequency:	notPlanned

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'fraction'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'fraction'
        |     |     |     |  \___attribute 'parentSI' = 'dimensionless'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a decimal ratio of a part to a whole'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'g'
        |     |     |     |  \___attribute 'id' = 'gram'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.001'
        |     |     |     |  \___attribute 'name' = 'gram'
        |     |     |     |  \___attribute 'parentSI' = 'kilogram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '0.001 kg'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'mg/kg'
        |     |     |     |  \___attribute 'id' = 'milligramPerKilogram'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000001'
        |     |     |     |  \___attribute 'name' = 'milligramPerKilogram'
        |     |     |     |  \___attribute 'parentSI' = 'gramPerGram'
        |     |     |     |  \___attribute 'unitType' = 'massPerMass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'milligrams per kilogram'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'mg/l'
        |     |     |     |  \___attribute 'id' = 'milligramPerLiter'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.001'
        |     |     |     |  \___attribute 'name' = 'milligramPerLiter'
        |     |     |     |  \___attribute 'parentSI' = 'kilogramPerMeterCubed'
        |     |     |     |  \___attribute 'unitType' = 'massDensity'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'milligrams/liter'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'number'
        |     |     |     |  \___attribute 'name' = 'number'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a quantity or amount'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = '%'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'parentSI' = 'dimensionless'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'percent, one part per hundred parts. a decimal ratio multipled by 100'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Nitrogen mineralization potential in soils collected from the Jornada Basin LTER-I transect and extracted at incubation time 0, 1989

Data Entities

Data Table

Non-Categorized Data Resource

Data Package Usage Rights

Keywords

Methods and Protocols

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

History and experimental design

Soil sampling, incubation and extraction methods

Additional files

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Nitrogen mineralization potential in soils collected from the Jornada Basin LTER-I transect and extracted at incubation time 0, 1989

+/- Data Entities

Data Table

Non-Categorized Data Resource

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

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

History and experimental design

Soil sampling, incubation and extraction methods

Additional files

+/- 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