Data Package Metadata   View Summary

Spring and Fall plant cover across grassland-shrubland ecotones at 3 sites in the Jornada Basin, 2005-ongoing

General Information
Data Package:
Local Identifier:knb-lter-jrn.210262001.2
Title:Spring and Fall plant cover across grassland-shrubland ecotones at 3 sites in the Jornada Basin, 2005-ongoing
Alternate Identifier:DOI PLACE HOLDER
Abstract:

The objective of this ongoing study is to investigate how pulses of precipitation translate into pulses of plant aboveground net primary productivity (ANPP) across grassland to shrubland ecotones in the northern Chihuahuan Desert. This dataset consists of ocular plant cover and height measurements to be used for estimating aboveground net primary in three habitat vegetation zones (grassland, ecotone, and shrubland) at three grassland-to-shrubland ecotone sites in the Jornada Basin, Dona Ana County, New Mexico, USA. Sampling is conducted twice a year: in the spring before the growing season and in the fall after the growing season.

Publication Date:2022-04-04
Language:English
For more information:
Visit: https://jrn.lternet.edu
Visit: DOI PLACE HOLDER

Time Period
Begin:
2005-06-01
End:
2018-10-31

People and Organizations
Contact:Jornada Basin LTER Information Manager (Jornada Basin LTER) [  email ]
Creator:Bestelmeyer, Brandon T (USDA-ARS Jornada Experimental Range)
Creator:Schooley, Robert (University of Illinois)

Data Entities
Data Table Name:
Spring and Fall plant cover and height measurements from Ecotone study, 2005-ongoing
Description:
Add description
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210262001/2/96d78e1360995da0ddd418dd0ffd7aa2
Name:Spring and Fall plant cover and height measurements from Ecotone study, 2005-ongoing
Description:Add description
Number of Records:149578
Number of Columns:16

Table Structure
Object Name:Ecotone_quadrat_plant_cover.csv
Size:13424598 byte
Authentication:cc60ae3c882691527aab80b607cf847d Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Add labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd labelAdd label
Column Name:year  
date  
season  
site  
zone  
row  
quad  
LTER_code  
USDA_code  
Species_binomial  
cover  
ht  
cnt  
phen  
habit  
form  
Definition:year of measurementdate of measurementseason of measurementsitehabitat zone within siterow of quadrat within habitat zonequadrat identification numberJRN LTER plant species codeUSDA Plants species codespecies binomialplant coverplant heightcount of the number of plantsplant phenology classplant habitplant form
Storage Type:date  
date  
string  
string  
string  
string  
string  
string  
string  
string  
float  
float  
float  
string  
string  
string  
Measurement Type:dateTimedateTimenominalnominalnominalnominalnominalnominalnominalnominalratioratiorationominalnominalnominal
Measurement Values Domain:
FormatYYYY
Precision1
FormatYYYY-MM-DD
Precision1
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeS
DefinitionSpring
Source
Code Definition
CodeF
DefinitionFall
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeCDRRC Pasture 3
DefinitionPasture 3 on the CDRRC
Source
Code Definition
CodeJER Pasture 12A
DefinitionPasture 12 A on the JER
Source
Code Definition
CodeJER Pasture 9
DefinitionPasture 9 on the JER
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeE
DefinitionEcotone habitat portion of site
Source
Code Definition
CodeG
DefinitionGrassland habitat portion of site
Source
Code Definition
CodeS
DefinitionShrubland habitat portion of site
Source
Definitionany text
Definitionany text
Definitionany text
Definitionany text
Definitionany text
Unitdimensionless
Typereal
Unitcentimeter
Typereal
Unitdimensionless
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeV
DefinitionVegetative
Source
Code Definition
CodeF
DefinitionFlowering or reproductive state
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeP
DefinitionPerennial
Source
Code Definition
CodeA
DefinitionAnnual
Source
Code Definition
CodeB
DefinitionBiennial
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeST-SU
DefinitionStem succulent form
Source
Code Definition
CodeFORB
DefinitionForb or broad-leaved herb form
Source
Code Definition
CodeGRASS
DefinitionGrass or graminoid form
Source
Code Definition
CodeSHRUB
DefinitionShrub form
Source
Code Definition
CodeS-SHR
DefinitionSub-shrub form
Source
Code Definition
CodeLF-SU
DefinitionLeaf succulent form
Source
Code Definition
CodeVINE
DefinitionVine form
Source
Missing Value Code:                
CodeNA
ExplInvalid/unknown code or value
 
CodeNA
ExplNot applicable or unknown
CodeNA
ExplNot applicable or unknown
CodeNA
ExplNot applicable or unknown
CodeNA
ExplNot applicable or unknown
CodeNA
ExplNot applicable or unknown
CodeNA
ExplMissing value - data not collected or otherwise unavailable
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 Core Research AreasPopulations, Primary Production
LTER Controlled Vocabulary v1aboveground production, canopy cover, deserts, grasses, herbs, plant, plant cover, shrubs, vascular plants, vegetation
noneJornada Basin LTER, black grama, core, ecotone, honey mesquite, long-term experiment, plant, shrub encroachment, shrub invasion
Jornada Basin LTER dataset keywordsVegetation Dynamics, core
Jornada Basin project namesEcotone, study 262
Jornada Basin place namesCDRRC Pasture 3, Pasture 12A, Pasture 9

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:

This experiment was conducted at three sites, each with a grassland-to-shrubland ecotone. Two of the sites, JER Pasture 9 and JER Pasture 12A, occur on the USDA Agricultural Research Service Jornada Experimental Range. One site, CDRRC Pasture 3, is located on the New Mexico State University Chihuahuan Desert Rangeland Research Center. Climate is arid to semi-arid, with long-term (90-year) mean annual temperature of 15C and mean annual precipitation of 250 mm, over half of which occurs in summer (July to September).

Sites were chosen to contain 3 distinct habitat types (ecotone positions): grassland, ecotone, and shrubland. Within each habitat type of each site, 32 1 square meter quadrats were established in 2005, yielding 96 quadrats per site and 288 quadrats for the entire study. Within each habitat type the 32 quadrats are arranged in two parallel rows of 16 quadrats each, running perpendicular to the grassland-to-shrubland gradient. Within a row, each quadrat is approximately 20 meters apart. Distance between the two parallel rows is about 55 meters. The rows are parallel to and between rodent trapping lines in data package knb-lter-jrn.210262008.

Quadrats are sampled nondestructively for ocular live cover and height of each species twice per year: once in the spring and once in the fall after the growing season. Two permanent plastic stakes mark the diagonal corners of each quadrat. Measurements are taken within portable square frames placed on the staked corners, with an internal area of 1 square meter. The interior of the frame is gridded with twine into one hundred 10 cm x 10 cm sections (each 1% of the quadrat’s area) to facilitate plant cover estimates. Plant cover is measured for each species at a minimum of 0.1% and the height to the nearest centimeter. These measurements are used to calculate annual net primary productivity in data packages knb-lter-jrn.210262004 (annual ANPP by plant functional group) and knb-lter-jrn.210262005 (annual ANPP by site).

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: Brandon T Bestelmeyer
Organization:USDA-ARS Jornada Experimental Range
Address:
P.O. Box 30003; MSC 3JER New Mexico State University,
Las Cruces, NM 88003-8003 U.S.A.
Id:https://orcid.org/0000-0001-5060-9955
Individual: Robert Schooley
Organization:University of Illinois
Email Address:
schooley@illinois.edu
Id:https://orcid.org/0000-0001-5951-2340
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/
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:
2005-06-01
End:
2018-10-31
Sampling Site: 
Description:Headquarters or unspecified: Jornada Experimental Range Headquarters. These generic coordinates may not necessarily specify the location of the study. More precise geographic coordinates for this study may be requested from the JRN LTER Data Manager (jornada.data@nmsu.edu).
Site Coordinates:
Longitude (degree): -106.740997Latitude (degree): 32.617001

Project

Parent Project Information:

Title:Jornada Basin LTER
Personnel:
Individual:Dr. Niall Hanan
Address:
P.O. Box 30003, MSC 3JER,
New Mexico State University,
Las Cruces, NM 88003-8003 United States
Phone:
575-646-3335 (voice)
Email Address:
nhanan@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:

JRN LTER is funded by the National Science Foundation under award DEB 2025166.

Maintenance

Maintenance:
Description:No maintenance description provided.
Frequency:notPlanned
Other Metadata

Additional Metadata

additionalMetadata
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        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'cm'
        |     |     |     |  \___attribute 'id' = 'centimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.01'
        |     |     |     |  \___attribute 'name' = 'centimeter'
        |     |     |     |  \___attribute 'parentSI' = 'meter'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '.01 meters'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'dimensionless'
        |     |     |     |  \___attribute 'name' = 'dimensionless'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a designation asserting the absence of an associated unit'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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