Data Package Metadata View Summary

Grassland and mesquite shrubland soil nitrogen mineralization potential from leaching soil incubations at the Jornada Basin LTER, 1986

General Information

Data Package:
Local Identifier:	knb-lter-jrn.210395001.4
Title:	Grassland and mesquite shrubland soil nitrogen mineralization potential from leaching soil incubations at the Jornada Basin LTER, 1986
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	This data package contains data on soil nitrogen mineralization potential in a variety of grass and mesquite habitats during the early years of the Jornada Basin LTER project (I-II). Soil cores were collected from Jornada Experimental Range and Chihuahuan Desert Rangeland Research Center (CDRRC) lands in May 1986, and observed in a leaching incubation study. The purpose of this study was to measure inorganic soil nitrogen in the context of the shift from grasslands to mesquite dominated ecosystems. Sites include fluff grass (Dasyochloa pulchella), black grama (Bouteloua eriopoda), Sporobolus/Gutierrezia, playa mesquite (Prosopsis glandulosa), and arroyo mesquite ecosystem types. Soil samples were collected on May 12-13, 1986 within the clumps of grass or beneath mesquite at each site, generally 20 cm deep or to the hard pan (whichever came first). During the incubation study, inorganic nitrogen leaching was measured for 28 weeks for each sample. This study is complete.
Publication Date:	2020-08-31

Time Period

Begin:

1986-05-12

End:

1986-05-13

People and Organizations
Contact:	Data Manager(Jornada Basin LTER) [ email ]
Creator:	Whitford, Walt (New Mexico State University)
Creator:	Fisher, Fred (New Mexico State University)

Data Entities
Data Table Name:	Leaching incubation N mineralization data
Description:	N mineralization data from grassland and mesquite shrubland soils sampled & incubated in 1986
Other Name:	Old-format Jornada LTER metadata file
Description:	Old format metadata file that contains depth to hardpan and a few other useful bits of information.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210395001/4/94e12b07c3c7e5a0788e30faa894a141
Name:	Leaching incubation N mineralization data
Description:	N mineralization data from grassland and mesquite shrubland soils sampled & incubated in 1986
Number of Records:	997
Number of Columns:	5

Table Structure

Object Name:

JRN_395001_grass_mesquite_leaching_N_min.csv

Size:

18378 bytes

Authentication:

2da7a28418187ed838b854a6782fd6ed Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

WEEK

SITEID1

SITEID2

SOILN

Definition:

Week of mineralization incubation

Numeric sample ID

Sample location ID 1 - vegetation type [MD, BD, GG, AM, FG, PM, SG, MG]

Sample location ID 2 - land ownership [USDA, LTER, IBP]

Inorganic soil nitrogen (mg of Nitrogen per kg dry weight of soil)

Storage Type:

float

string

float

Measurement Type:

ratio

nominal

ratio

Measurement Values Domain:

Unit	number
Type	whole
Min	0
Max	28

Unit	number
Type	natural
Min	1
Max	100

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	MD
Definition	Mesquite Dunes (Sample i.d.'s 1-10)
Source

Code Definition

Code	BD
Definition	Between Dunes (Sample i.d.'s 11-20)
Source

Code Definition

Code	GG
Definition	Grama Grassland (Sample i.d.'s 21-40 & 61-70)
Source

Code Definition

Code	AM
Definition	Arroyo Mesquite (Sample i.d.'s 41-50)
Source

Code Definition

Code	FG
Definition	Fluff Grass (Sample i.d.'s 51-60)
Source

Code Definition

Code	PM
Definition	Playa Mesquite (Sample i.d.'s 71-80)
Source

Code Definition

Code	SG
Definition	Sporobolus/ Gutierrezia (Sample i.d.'s 81-90)
Source

Code Definition

Code	MG
Definition	Mesquite Grassland (Sample i.d.'s 91-100)
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	USDA
Definition	US Department of Agriculture site
Source

Code Definition

Code	IBP
Definition	International Biological Program site
Source

Code Definition

Code	LTER
Definition	Long-term Ecological Research program site
Source

Unit	milligramsPerKilogram
Type	real
Min	0.18
Max	51.95

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

Old-format Jornada LTER metadata file

Entity Type:

unknown

Description:

Old format metadata file that contains depth to hardpan and a few other useful bits of information.

Physical Structure Description:

Object Name:

JornadaStudy_395_grama_mesquite_leaching_mineralization_potential_dsd.txt

Size:

14668 bytes

Authentication:

0eeb4b27ee6a378e1b308abd5bdd144e Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210395001/4/0169a52c9017bed83799d1a928d8f804

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) has an ethical obligation 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	deserts, grasslands, shrubs, nutrients, soil chemistry, plant ecology, soil properties, soil samples, nitrogen mineralization, soil
Jornada Project Names	study 395
JRN Dataset Keywords	LTER I
Jornada Place Names	JER
LTER Core Area	Inorganic Nutrients

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:

Research objectives and design:

Soil samples were collected at a variety of grassland and mesquite habitats in the Jornada Basin in a survey of soil N availability. The study objective was to develop hypotheses about desertification processes that degrade grassland into mesquite dominated ecosystems.

Soil samples were collected on May 12 and May 13, 1986 in 10 sites total, 5 associated with mesquite (Prosopsis glandulosa) and 5 grassland or grass habitats. These sites include USDA Mesquite Dunes (MD_USDA), USDA Between Dunes (BD_USDA), IBP Grama Grassland (GG_IBP), USDA Grama Grassland (GG_USDA), LTER Arroyo Mesquite (AM_LTER), LTER Fluff Grass (FG_LTER), LTER Grama Grassland (GG_LTER), LTER Playa Mesquite (GG_LTER), USDA Sporobolus/ Gutierrezia (SG_USDA), USDA Mesquite Grassland (MG_USDA). Soil samples were collected to 20 cm or to hard pan, whichever came first. After collection soils were incubated for up to 28 weeks and soil N mineralization was measured using a leaching incubation procedure.

Sampling and incubation details

At Fluff grass LTER (FG LTER), which is on the lower grassland of the LTER control transect, samples were collected from fluff grass clumps. At the Grama grassland LTER (GG LTER) site, which is on the upper grassland of the LTER control transect, samples were collected from black grama clumps. At the Sporobolus/Gutierrezia USDA site (SG USDA), which is located just SE of the IBP grassland site, samples were collected from Sporobolus/Gutierrezia clumps. Sporobolus and Gutierrezia were dominant plants, but mesquite was observed to be increasing in this area. Located just SE of IBP grassland site. At the other Grama grassland sites (GG USDA & GG IBP), samples were collected within clumps of black grama. At the Playa mesquite site (PM LTER), soils were mostly clay, but a few samples were quite coarse and had a hardpan at 10-15 cm. At arroyo mesquite (AM LTER) soil samples were generally loamy and had no detectable hardpan. A few had hardpans at 10-15 cm. Depth to hardpan at all sites, and additional location descriptions, are given in the attached "DSD" file (see below) from Jornada LTER’s metadata archives.

Nitrogen mineralization of soils was measured up to 28 weeks following Stanford and Smith’s (1972) leaching incubation method. Briefly, an incubation procedure was utilized to describe the relationship between cumulative N and incubation periods. Incubation continued for 28 weeks at 350 C, where mineralized nitrogen was removed by leaching with 0.01 M CaCI2 at 0, 1 2, 4, 8, 12, 16, 20, 24, and 28-week intervals. The N value was then estimated from the cumulative amounts of nitrogen mineralized under these conditions. This data set contains the week of analysis, sample number, site, and inorganic nitrogen (mg-N/kg-dry soil).

References

Stanford, George, and S. J. Smith. "Nitrogen mineralization potentials of soils." Soil Science Society of America Journal 36, no. 3 (1972): 465-472.

Supplemental files

JornadaStudy_395_grama_mesquite_leaching_mineralization_potential_dsd.txt: This is a metadata file from the Jornada LTER archives that may have some useful information.

People and Organizations

Creators:

Individual:	Walt Whitford
Organization:	New Mexico State University
Id:	https://orcid.org/0000-0003-1155-6162

Individual:	Fred Fisher
Organization:	New Mexico State University

Contacts:

Individual:

Data Manager

Organization:

Jornada Basin LTER

Email Address:

datamanager.jrn.lter@gmail.com

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

1986-05-12

End:

1986-05-13

Geographic Region:

Description:

Locations near the IBP exclosure are in the Basin Floor geomorphic unit

Bounding Coordinates:

Northern:	32.7494871	Southern:	32.47317259
Western:	-106.8728831	Eastern:	-106.6927163

Geographic Region:

Description:

Locations near the LTER transect are in the West Bajada geomorphic unit

Bounding Coordinates:

Northern:	32.5427713	Southern:	32.46722784
Western:	-106.8514602	Eastern:	-106.7294433

Project

Parent Project Information:

Title:

Jornada Basin LTER (I/II)

Personnel:

Individual:	Walt Whitford
Organization:	New Mexico State University
Id:	https://orcid.org/0000-0003-1155-6162
Role:	Principal Investigator

Funding:

NSF DEB 8612106

Maintenance

Maintenance:

Description:	complete
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'milligramsPerKilogram'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000001'
        |     |     |     |  \___attribute 'name' = 'milligramsPerKilogram'
        |     |     |     |  \___attribute 'parentSI' = 'gramsPerGram'
        |     |     |     |  \___attribute 'unitType' = 'massPerMass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'milligrams in a kilogram'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Grassland and mesquite shrubland soil nitrogen mineralization potential from leaching soil incubations at the Jornada Basin LTER, 1986

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:

Research objectives and design:

Sampling and incubation details

References

Supplemental 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

Grassland and mesquite shrubland soil nitrogen mineralization potential from leaching soil incubations at the Jornada Basin LTER, 1986

+/- 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:

Research objectives and design:

Sampling and incubation details

References

Supplemental 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