Data Package Metadata View Summary

Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009

General Information

Data Package:
Local Identifier:	knb-lter-jrn.210278002.2
Title:	Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	This data package contains plot cover data from a precipitation and nitrogen manipulation experiment conducted on the Jornada Experimental Range from 2006-2008. The objective of the study was to understand the interaction of precipitation and nitrogen fertilization on ANPP legacies. Rain-out shelters or supplemental irrigation were used to create 5 levels of precipitation: -80% and -50% reduced, ambient control, and +50% and +80% increased PPT. Half of the plots were randomly assigned to receive ammonium nitrate fertilizer. Plant cover was sampled with a line intercept method in fall 2006 before any treatments began, then again in fall 2007 and 2008 after treatments had been applied. Also available are soil moisture data from this study in data package knb-lter-jrn.210278001. For further information and results, see: Throop, H., L. G. Reichmann, O. Sala, and S. Archer. (2012), Response of dominant grass and shrub species to water manipulation: an ecophysical basis for shrub invasion in a Chihuahuan desert grassland. Oecologia 169: 373-383. https://doi.org/10.1007/s00442-011-2217-4 Reichmann, L. G., O. E. Sala, and D. P. C. Peters. (2013), Water controls on nitrogen transformations and stocks in an arid ecosystem. Ecosphere 4(1):11. https://doi.org/10.1890/ES12-00263.1
Publication Date:	2020-01-28

Time Period

Begin:

2006-10-01

End:

2008-09-30

People and Organizations
Contact:	Sala, Osvaldo (Arizona State University)
Contact:	Data Manager(Jornada Basin LTER) [ email ]
Creator:	Reichmann, Lara (Arizona State University)
Creator:	Sala, Osvaldo (Arizona State University)

Data Entities
Data Table Name:	Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009
Description:	Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-jrn/210278002/2/35391be47486172f541da4cb3558cfe6
Name:	Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009
Description:	Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009
Number of Records:	3653
Number of Columns:	11

Table Structure

Object Name:

JRN_278002_Plant_Cover.csv

Size:

240508 bytes

Authentication:

573dc81032cd13c74f74acebc528da46 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

year

month

Plot

Block

PPT_trt

N_trt

FORM

USDA_code

Scientific_name

live_dead

spp_cover

Definition:

year of observation

month of observation

plot identification number

Block in which plot occurs

precipitation treatment applied to the plot

nitrogen treatment applied to the plot

plant form

plant species code from USDA PLANTS datbase (plants.usda.gov)

scientific name

plant live or dead status

percent cover of species in plot

Storage Type:

date

string

float

Measurement Type:

dateTime

nominal

ratio

Measurement Values Domain:

Format	YYYY
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Sep
Definition	September
Source

Code Definition

Code	Oct
Definition	October
Source

Definition

plot identification number

Definition

Block in which plot occurs

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	80% rain interception
Source

Code Definition

Code	2
Definition	50% rain interception
Source

Code Definition

Code	5
Definition	80% increased precipitation
Source

Code Definition

Code	4
Definition	50% increased precipitation
Source

Code Definition

Code	3
Definition	ambient precipitation
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	ammonium nitrate fertilizer applied
Source

Code Definition

Code	0
Definition	no ammonium nitrate fertilizer applied
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	forb
Definition	forb/herb
Source

Code Definition

Code	grass
Definition	grass/gramminoid
Source

Code Definition

Code	n/a
Definition	unknown form or form categorization does not apply
Source

Code Definition

Code	shrub
Definition	shrub
Source

Code Definition

Code	vine
Definition	vine
Source

Code Definition

Code	s-shrub
Definition	subshrub
Source

Definition

plant species code from USDA PLANTS datbase (plants.usda.gov)

Definition

scientific name

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	live
Definition	plant was observed to be alive at sampling
Source

Code Definition

Code	dead
Definition	plant was observed to be dead at sampling
Source

Code Definition

Code	n/a
Definition	live/dead status unknown or does not apply
Source

Unit	dimensionless
Type	real
Min	0
Max	0.87

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) 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 Area	Populations, Disturbance
Jornada Place Names	Pasture 13
JRN Dataset Keywords	study 278, LTER V
LTER Controlled Vocabulary	vegetation dynamics, annual net primary production, precipitation, droughts, rain, soil moisture, soil water, soil water content, soils, water, climate

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 study was conducted in a Bouteloua eripoda grassland in Pasture 13 of the Jornada Experimental Range in Dona Ana County, New Mexico, USA. In 2006, 44 2.5m x 2.5m plots were established in each of three blocks on a level upland with flat slopes protected from livestock grazing since 1996. The experiment was implemented as a randomized complete block design with 2 factors: precipitation manipulation (5 levels) and nitrogen fertilization (2 levels).

The 5 levels of precipitation manipulation were 1) 80% reduced precipitation, 2) 5-% reduced precipitation, 3) ambient precipitation, 4) 50% increased precipitation, and 5) 80 increased precipitation. Reduction of 80% or 50% precipitation was achieved with rainout shelters having different numbers of transparent acrylic troughs that acted like shingles. An irrigation system was used to implement the water addition treatments.

The two levels of nitrogen fertilization consisted of 1) liquid Ammonium nitrate fertilizer applied twice each growing season in mid- and late July from 2006 to 2008 (treatment), and 2) application of the same amount of water, equivalent to a 2mm rain event (controls). The ammonium nitrate fertilizer consisted of 10 grams of ammonium nitrate dissolved in water per meter per year. Treatments began in 2007.

Treatment combinations were randomly assigned to plots within each block. Six replicates were used for treatment combinations involving ambient precipitation and four replicates were used for the remaining treatment combinations, yielding total 44 plots per block.

Plant cover was sampled with a line intercept method in fall 2006 before any treatments began, then again in fall 2007 and 2008 after treatments had been applied. Within each plot, green interception by species was recorded for all plants present in the plot on 3 250cm parallel lines evenly spaced from the east border.

Also available are soil moisture data from this study in data package knb-lter-jrn.210278001.

For further information and results, see:

Throop, H., L. G. Reichmann, O. Sala, and S. Archer. (2012), Response of dominant grass and shrub species to water manipulation: an ecophysical basis for shrub invasion in a Chihuahuan desert grassland. Oecologia 169: 373-383. https://doi.org/10.1007/s00442-011-2217-4

Reichmann, L. G., O. E. Sala, and D. P. C. Peters. (2013), Water controls on nitrogen transformations and stocks in an arid ecosystem. Ecosphere 4(1):11. https://doi.org/10.1890/ES12-00263.1

People and Organizations

Creators:

Individual:	Lara Reichmann
Organization:	Arizona State University
Id:	https://orcid.org/0000-0002-9737-7300

Individual:	Osvaldo Sala
Organization:	Arizona State University
Id:	https://orcid.org/0000-0003-0142-9450

Contacts:

Individual:	Osvaldo Sala
Organization:	Arizona State University
Id:	https://orcid.org/0000-0003-0142-9450

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:

2006-10-01

End:

2008-09-30

Geographic Region:

Description:

This study took place in JER Pasture 13 in the Basin Floor geomorphic unit. Detailed coordinates are available on request from the JRN LTER Data Manager.

Bounding Coordinates:

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

Project

Parent Project Information:

Title:

Jornada Basin LTER

Personnel:

Individual:	Osvaldo Sala
Organization:	Arizona State University
Id:	https://orcid.org/0000-0003-0142-9450
Role:	Principal Investigator

Funding:

NSF: DEB 0618210

Maintenance

Maintenance:

Description:	completed
Frequency:

Other Metadata

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009

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

Recently Added

Recently Updated

Data Package Metadata View Summary

Plant cover under precipitation and nitrogen manipulation treatments at the Jornada Basin LTER site, 2007-2009

+/- 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

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance