Data Package Metadata View Summary

Effects of Multiple Resource Additions on Community and Ecosystem Processes: NutNet Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico

General Information

Data Package:

Local Identifier:

knb-lter-sev.293.1

Title:

Effects of Multiple Resource Additions on Community and Ecosystem Processes: NutNet Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Two of the most pervasive human impacts on ecosystems are alteration of global nutrient budgets and changes in the abundance and identity of consumers. Fossil fuel combustion and agricultural fertilization have doubled and quintupled, respectively, global pools of nitrogen and phosphorus relative to pre-industrial levels. In spite of the global impacts of these human activities, there have been no globally coordinated experiments to quantify the general impacts on ecological systems. This experiment seeks to determine how nutrient availability controls plant biomass, diversity, and species composition in a desert grassland. This has important implications for understanding how future atmospheric deposition of nutrients (N, S, Ca, K) might affect community and ecosystem-level responses. This study is part of a larger coordinated research network that includes more than 40 grassland sites around the world. By using a standardized experimental setup that is consistent across all study sites, we are addressing the questions of whether diversity and productivity are co-limited by multiple nutrients and if so, whether these trends are predictable on a global scale. Above-ground net primary production is the change in plant biomass, represented by stems, flowers, fruit and and foliage, over time and incoporates growth as well as loss to death and decomposition. To measure this change the vegetation variables, including species composition and the cover and height of individuals, are sampled twice yearly (spring and fall) at permanent 1m x 1m plots within each site. Volumetric measurements are made using vegetation data from permanent plots (SEV231, "Effects of Multiple Resource Additions on Community and Ecosystem Processes: NutNet NPP Quadrat Sampling") and regressions correlating species biomass and volume constructed using seasonal harvest weights from SEV157, "Net Primary Productivity (NPP) Weight Data."

Publication Date:

2024-03-08

Language:

english

For more information:
Visit:	http://sev.lternet.edu/node/7277
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2008-05-13

End:

2023-10-24

People and Organizations
Contact:	Information Manager(SEV LTER) [ email ]
Contact:	Information Manager (LTER Network Office) [ email ]
Creator:	Collins, Scott (SEV LTER)
Associate:	Ohlert, Timothy (University of New Mexico, Field Technician)
Associate:	Patton, Mariah (University of New Mexico, Field Technician)

Data Entities
Data Table Name:	sev293_nutnet_biomass
Description:	Plant biomass data for the Sevilleta Nutrient Network experiment

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-sev/293/1/ba5de2888cc4480b5fe81f5e106946b2
Name:	sev293_nutnet_biomass
Description:	Plant biomass data for the Sevilleta Nutrient Network experiment
Number of Records:	5535
Number of Columns:	22

Table Structure

Object Name:

sev293_nutnet_biomass.csv

Size:

873265 byte

Authentication:

9b131c697b5f50c811d2e7a98b37e83c Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

site

year

season

date

quad

treatment

kartez

genus

sp.epithet

family

LifeHistory

PhotoPath

FunctionalGroup

cover

volume

biomass.BM

biomass.BIM

SiteCluster

MetStation

season.precip

GDD

SPEI.comp

Column Name:

site

year

season

date

quad

treatment

kartez

genus

sp.epithet

family

LifeHistory

PhotoPath

FunctionalGroup

cover

volume

biomass.BM

biomass.BIM

SiteCluster

MetStation

season.precip

GDD

SPEI.comp

Definition:

Site at which data was collected.

Year in which data was collected

Season in which data was collected

Date on which data was collected

The quadrat number nested within each plot.

Nutrient addition treatment for each plot

USDA plant code for the plant species. When identification to species is not possible, the code for genus or family is given.

Genus of the plant

Species name of the plant

Taxonomic family of the plant

Life history of the plant species

Type of photosynthesis performed by the plant species.

Functional group of the plant species

Percent of one square meter covered by a given plant species in a given quad, calculated as the sum of the covers of all individuals of that species in that quad.

Total volume of a given species in a given quad, calculated as the sum of the volumes of each individual of that species in that quad (cover times height)

Biomass of a given species in a given quad, calculated using the best overall model (may or may not use climate predictors)

Biomass of a given species in a given quad, calculated using the best climate invariant model

Group of sites geographically near each other

Meteorological station closest to a given site cluster

Seasonal precipitation

Growing degree days on day of observation

Standardized precipitation evapotranspiration index

Storage Type:

string

dateTime

string

dateTime

string

float

string

float

Measurement Type:

nominal

dateTime

nominal

dateTime

nominal

ratio

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	NutNet
Definition	Sevilleta Nutrient Network site
Source

Format	YYYY
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	fall
Definition	fall
Source

Code Definition

Code	spring
Definition	spring
Source

Format	YYYY-MM-DD
Precision

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	N
Definition	Nitrogen added
Source

Code Definition

Code	P
Definition	Phosphorus added
Source

Code Definition

Code	K
Definition	Potassium added
Source

Code Definition

Code	NP
Definition	Nitrogen and phosphorus added
Source

Code Definition

Code	NK
Definition	Nitrogen and potassium added
Source

Code Definition

Code	PK
Definition	Phosphorus and potassium added
Source

Code Definition

Code	NPK
Definition	Nitrogen, phosphorus, and potassium added
Source

Code Definition

Code	C
Definition	Control, no nutrients added
Source

Definition

text

Definition

text

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	annual
Definition	Plant grows, fruits, and dies within a year
Source

Code Definition

Code	perennial
Definition	Plant persists for two or more years
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C3
Definition	Plant uses the C3 photosynthetic pathway
Source

Code Definition

Code	C3-C4
Definition	Plants with traits intermediate between C3 and C4 plants, or family and genera that contain both C3 and C4 species
Source

Code Definition

Code	C4
Definition	Plant uses the C4 photosynthetic pathway
Source

Code Definition

Code	CAM
Definition	Plant uses the CAM(Crassulacean acid metabolism) photosynthetic pathway
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	forb
Definition	Herbaceous forbs and sub-shrubs
Source

Code Definition

Code	grass
Definition	Plant in the family Poaceae
Source

Code Definition

Code	shrub
Definition	Short, multi-stemmed woody plants and cacti
Source

Unit	Percent of square meter
Type	real

Unit	Percent of square meter x centimeter
Type	real

Unit	gram
Type	real

Unit	gram
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	DeepWell
Definition	Chihuahuan Desert grassland - Great Plains grassland ecotone
Source

Definition

text

Unit	millimeter
Type	real

Unit	nominalDay
Type	real

Unit	dimensionless
Type	real

Missing Value Code:

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This data package is released to the "public domain" under Creative Commons CC0 1.0 "No Rights Reserved" (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein "website") in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)	nutnet, nutrient network
Core Areas	inorganic nutrients, populations, primary production
LTER Controlled Vocabulary	communities, plant communities, species, plant species, species lists, plant species composition, species diversity, productivity, net primary productivity, annual net primary production, biomass, plant biomass, aboveground biomass, species composition, seasonality, primary production, net primary production, species interactions, nutrients, ecosystems, terrestrial ecosystems, grasslands, vegetation

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:

Collecting the data

Above ground net primary production (ANPP) is measured in the spring and fall. Spring measurements are taken in April through May, when early season annuals have attained maximum biomass. Fall measurements are taken September through October when summer annuals and perennials have reached maximum biomass just prior to killing frosts. ANPP data are collected in two distinct phases: Quadrat measurements and vegetation collections. This protocol explains the quadrat measurement phase.

The primary unit for measuring ANPP data at each study site is the quadrat, or quad. This is a 1m2 square permanently marked by either short pieces of rebar or fiberglass at two corners.

Within each quad, all plants are identified to species, and their cover is recorded as a percentage of the entire 1m2 quad. For example, a plant occupying a 10cm by 10cm area in the plot will be recorded as 1. Cover smaller than one is categorized as 0.01, 0.05, 0.1, 0.25 or 0.5.

Description:

Data Processing Techniques to Derive Biomass and NPP

Data from SEV231 and SEV157 are used used to calculate seasonal and annual production of each species in each quadrat for a given year. Allometric equations derived from harvested samples of each species for each season are applied to the measured cover, height, and count of each species in each quadrat. This provides seasonal biomass for winter, spring, and fall.

Description:

Prior NPP Calculation Method

Package versions 1 and onward were processed as detailed above, consistent with other Sevilleta plant biomass publications. Version 155436 of this package, published in 2015 and available at doi.org/10.6073/pasta/5fee5a4260ad2e8848e24dce87c12efa, used the following alternative method.

Seasonal NPP is derived by subtracting the previous season's biomass from the biomass for the current season. For example, spring NPP is calculated by subtracting the winter weight from the spring weight for each species in a given quadrat. Negative differences are considered to be 0. Likewise, fall production is computed by subtracting spring biomass from fall biomass. Annual biomass is taken as the sum of spring and fall NPP.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Scott Collins

Organization:

SEV LTER

Address:

Department of Biology, MSC03 2020, 1 University of New Mexico,

Albuquerque, NM 87131

Email Address:

scollins@sevilleta.unm.edu

Id:

http://sev.lternet.edu/12275

Contacts:

Individual:

Information Manager

Organization:

SEV LTER

Email Address:

sevim@unm.edu

Position:

Information Manager

Organization:

LTER Network Office

Address:

UNM Biology Department, MSC03-2020,

1 University of New Mexico,

Albuquerque, NM 87131-0001 USA

Phone:

505 277-2535 (voice)

Phone:

505 277-2541 (fax)

Email Address:

tech-support@lternet.edu

Web Address:

http://www.lternet.edu

Associated Parties:

Individual:	Timothy Ohlert
Organization:	University of New Mexico
Id:	https://orcid.org/0000-0001-6976-5114
Role:	Field Technician

Individual:	Mariah Patton
Organization:	University of New Mexico
Id:	https://orcid.org/0000-0001-8117-6654
Role:	Field Technician

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2008-05-13

End:

2023-10-24

Sampling Site:

Description:

Deep Well is located on McKenzie Flats and is site of the longest running SEV LTER met station, number 40, which has been active since 1988. In addition to studies of meteorological variables, core line-intercept vegetation transects and line-intercept transects from the 1995 and 2001 Deep Well fires are sampled here. The mini-rhizotron study, blue and black grama compositional comparison, blue and black grama patch dynamics investigation, and kangaroo rat population assessement are all ongoing here. Deep Well Blue/Black Grama Mixed is also the location of the warming and monsoon experiments, as well as portions of the line-intercept and vegetation removal studies. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire had reached the area of Deep Well Blue/Black Grama Mixed. While portions of this site were burned, the entirety was not. See individual projects for further information on the effects of the fire.Vegetation: The vegetation of Deep Well Blue/Black Grama Mixed is Chihuahuan Desert Grassland, dominated by black grama (Bouteloua eriopoda) and blue grama (B. gracilis). Other grasses found at the site include dropseeds (Sporobolus spp.) and threeawns (Aristida spp.). Shrubs are uncommon but those that occur include Yucca glauca, Ephedra torreyi, and four-wing saltbush (Atriplex canescens). Herbaceous plants include Plantago purshii, Hymenopappus filifolius, and globe mallows (Sphaeralcea spp.).

Site Coordinates:

Longitude (degree):	-106.691495	Latitude (degree):	34.359844
Altitude (meter):	1600.0

Project

Parent Project Information:

Title:

LTER: Sevilleta (SEV) Site: Climate Variability at Dryland Ecotones

Personnel:

Individual:

Jennifer A Rudgers

Organization:

University of New Mexico

Email Address:

jrudgers@unm.edu

Id:

https://orcid.org/0000-0001-7094-4857

Role:

Principal Investigator

Additional Award Information:

Funder:	NSF
Title:	1655499

Maintenance

Maintenance:

Description:

ongoing

Frequency:

Additional Info

Additional Information:

Additional Information on the Data Collection PeriodSpecies composition and net primary production was sampled semiannually (spring and fall) in 2007, 2008, and 2009. Soil was sampled and analyzed in the fall in 2007 and 2008. Plots were fertilized annually starting in 2008.In August 2009, a wildfire burned all 40 of the NutNet plots causing no Fall 2009 vegetation measurements.Special Codes for Vegetation Ids:SPORSP- Unknown SporobolusSPSP- Unknown SphaeralceaUNKFO- Unknown Forb

Other Metadata

Additional Metadata

additionalMetadata
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        |___element 'metadata'
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        |     |___element 'fetchedFromEDI'
        |     |        \___attribute 'dateFetched' = '2024-03-06'
        |     |        \___attribute 'packageID' = 'knb-lter-sev.293.155436'
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
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        |     |___text '\n         '
        |     |___element 'importedFromXML'
        |     |        \___attribute 'dateImported' = '2024-03-08'
        |     |        \___attribute 'filename' = 'knb-lter-sev.293.1.xml'
        |     |        \___attribute 'taxonomicCoverageExempt' = 'True'
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'unitList'
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Percent of square meter x centimeter'
        |     |     |     |  \___attribute 'name' = 'Percent of square meter x centimeter'
        |     |     |     |___text '\n               '
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        |     |     |___element 'unit'
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        |     |     |     |  \___attribute 'name' = 'Percent of square meter'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
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Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
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        |     |___text '\n      '
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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

Effects of Multiple Resource Additions on Community and Ecosystem Processes: NutNet Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico

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

Additional Info

Additional Metadata

Additional Metadata

Additional Metadata

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Effects of Multiple Resource Additions on Community and Ecosystem Processes: NutNet Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico

+/- 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

+/- Additional Info

+/- Additional Metadata

+/- Additional Metadata

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Info

Additional Metadata

Additional Metadata

Additional Metadata

Additional Metadata