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Soil Nitrogen Analyses under Mesquite Bush Canopies at the Jornada Basin LTER, 1986

General Information
Data Package:
Local Identifier:knb-lter-jrn.210394009.41
Title:Soil Nitrogen Analyses under Mesquite Bush Canopies at the Jornada Basin LTER, 1986
Alternate Identifier:DOI PLACE HOLDER
Abstract:

This data package contains data on mesquite bush soils at the Jornada Experimental Range (JER) during the early years of Jornada Basin LTER (LTER-I and II). The purpose of this study was to analyze nitrogen concentration in soils associated with mesquite (Prosopis glandulosa). The mesquite soils were sampled at 4 habitats (playa, coppice dune, arroyo, and grassland), and an ecosystem dominated by the Larrea tridentate (creosotebush) and no mesquite was included as a reference. Samples were taken from two depths (0-15cm, 15-30cm) for three beneath canopy positions (stem base, mid-canopy, and edge of canopy) and one non-vegetated interzone position for each shrub. Four shrubs were sampled at each site. The soils were analyzed for Total Kjeldahl Nitrogen (TKN), N03 nitrate, NH4 ammonium. The data set was collected on October 1, 1986 and is complete.

Publication Date:2020-07-13

Time Period
Begin:
1986-10-01
End:
1986-10-01

People and Organizations
Contact:Manager, Data (Jornada Basin LTER) [  email ]
Creator:Silva, Solange (New Mexico State University)
Creator:Whitford, Walt (New Mexico State University)
Creator:Virginia, Ross (New Mexico State University)
Associate:McBride, Robin (New Mexico State University, Graduate Student)

Data Entities
Data Table Name:
Mesquite soil nitrogen
Description:
Mesquite Soil Nitrogen Analyses, 1986
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210394009/41/5c08ee6ab61ce10264719416a1a62d13
Name:Mesquite soil nitrogen
Description:Mesquite Soil Nitrogen Analyses, 1986
Number of Records:160
Number of Columns:10

Table Structure
Object Name:JRN_394009_mesquite_soil_nitrogen.csv
Size:7868 bytes
Authentication:b72060224bfe38ed23917eae4c393c1e Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 
Column Name:DATE  
SAMP  
SITE  
DIST  
CM  
DEPTH  
TKN  
NH4  
NO3  
INORGN  
Definition:Date of data collectionSample NumberSite and replicate number (Site: D = Dune, P = Playa, G = Grassland, L = Larrea, W = Wash/arroyo ; Replicate: 1-4)Distance, or category where soil was sampled in reference to mesquite bushCentimeters or distance from main bush stem soil was collectedSoil core depthTotal Kjeldahl Nitrogen from soil sample (g/kg)NH4, ammonium from soil sample (mg/kg)NO3, Nitrate from soil sample (mg/kg)Total Inorganic N (NH4 and NO3) (mg/kg)
Storage Type:date  
string  
string  
string  
float  
float  
float  
float  
float  
float  
Measurement Type:dateTimenominalnominalnominalratioratioratioratioratioratio
Measurement Values Domain:
FormatYYYY-MM-DD
Precision
DefinitionSample Number
DefinitionSite and replicate number (Site: D = Dune, P = Playa, G = Grassland, L = Larrea, W = Wash/arroyo ; Replicate: 1-4)
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code1
DefinitionBase of main mesquite stem
Source
Code Definition
Code2
DefinitionMid-canopy
Source
Code Definition
Code3
DefinitionCanopy edge
Source
Code Definition
Code4
DefinitionInterzone (unvegetated area)
Source
Unitcentimeter
Typereal
Min0 
Max487.68 
Unitcentimeter
Typenatural
Min15 
Max30 
UnitgramsPerKilogram
Typereal
Min0.102 
Max1.792 
UnitmilligramsPerKilogram
Typereal
Min0 
Max29.85 
UnitmilligramsPerKilogram
Typereal
Min0.54 
Max65.95 
UnitmilligramsPerKilogram
Typereal
Min0.9 
Max92 
Missing Value Code:                    
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) 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 Vocabularytermites, runoff, chemical properties, deserts, grasslands, shrubs, water, hydrology, water chemistry, rain, nutrients
Jornada Project Namesstudy 001
JRN Dataset KeywordsLTER I, LTER II
Jornada Place NamesJER, CDRRC, C-CALI, C-TERM, G-IBPE, G-SUMM
LTER Core AreaInorganic Nutrients
(No thesaurus)chlordane

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:

To study nitrogen concentrations of soils associated with mesquite (Prosopis glandulosa), 5 sites were established at the Jornada Basin in 1986. To compare across habitats, mesquite soil was sampled at playa, coppice dune, arroyo/wash, and grassland sites. A creosotebush habitat (Larrea tridentata) was included as a reference as it lacked mesquite. Soils were sampled under Prosopis at four sites and under Larrea at one site on the Jornada Basin on October 1, 1986. The soil samples were augerd from two depths (0-15cm, 15-30cm) from four canopy positions, (1) stem base, (2) mid-canopy, (3) outer edge-of-canopy, and (4) interzone-- one canopy distance (radius) away from the edge of the shrub canopy in an unvegetated interzone. Four shrubs were sampled at each habitat. Soil samples were air-dried in a glasshouse and ground to pass a 2-mm sieve. Total N was digested by Kjeldahl digestion block techniques (Bremner and Mulvaney, 1982). Digest NH4-N was analyzed using an automated salicylate procedure (Technicon Industrial Method No. 329-74W/B). Inorganic N (NH4-N and NO3 + NO2-N) was extracted with 2M KCl (Keeney and Nelson, 1982). Ammonium-N in the extracts was analyzed colorimetrically (indophenol blue) in an automated procedure (Technicon Industrial Method No. 154-71) and NO3 + NO2-N was measured by an automated Cd reduction colorimetric procedure (Technicon Industrial Method No. 100-70W/).

The data set includes the date of collection, habitat, replication, position, depth, and distance of sample, Total Kjeldahl Nitrogen (g/kg), NH4 (mg/kg), NO3 (mg/kg), and total inorganic N (mg/kg). This study was completed on October 1, 1986.

People and Organizations

Creators:
Individual: Solange Silva
Organization:New Mexico State University
Individual: Walt Whitford
Organization:New Mexico State University
Id:https://orcid.org/0000-0003-1155-6162
Individual: Ross Virginia
Organization:New Mexico State University
Contacts:
Individual: Data Manager
Organization:Jornada Basin LTER
Email Address:
datamanager.jrn.lter@gmail.com
Associated Parties:
Individual: Robin McBride
Organization:New Mexico State University
Role:Graduate Student

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1986-10-01
End:
1986-10-01
Geographic Region:
Description:Basin_Floor
Bounding Coordinates:
Northern:  32.7494871Southern:  32.47317259
Western:  -106.8728831Eastern:  -106.6927163

Project

Parent Project Information:

Title:Jornada Basin LTER (I/II)
Personnel:
Individual: Walt Whitford
Organization:New Mexico State University
Role:Principal Investigator
Funding: NSF DEB 8612106
Related Project:
Title:No project title to report
Personnel:
Individual: Ross Virginia
Role:Principal Investigator
Funding: No funding to report

Maintenance

Maintenance:
Description:complete
Frequency:

Additional Info

Additional Information:
 

Creosotebush zone plots (C) in Caliche area (CALI) about 40 meters upslope from C-CALI NPP site, and in area of termite studies (TERM) located about 300 meters west of Upper Trailer. Grassland (G) plots at Mt. Summerford (SUMM) upslope of powerline, and about 50 meters east of LTER-I Alternate Control Transect, and about 30 meters west of the southwest corner of the IBP exclosure on the USDA Jornada Experimental Range.

Other Metadata

Additional Metadata

additionalMetadata
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        |     |     |     |  \___attribute 'name' = 'centimeter'
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        |     |     |     |  \___attribute 'parentSI' = 'gramsPerGram'
        |     |     |     |  \___attribute 'unitType' = 'massPerMass'
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        |     |     |     |     |___text 'milligrams per kilogram'
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        |     |     |     |  \___attribute 'id' = 'gramsPerKilogram'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.001'
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        |     |     |     |  \___attribute 'unitType' = 'massPerMass'
        |     |     |     |___text '\n          '
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