Data Package Metadata View Summary

SEV-LTER quadrat plant species biomass all sites and experiments

General Information

Data Package:

Local Identifier:

knb-lter-sev.331.2

Title:

SEV-LTER quadrat plant species biomass all sites and experiments

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

This dataset includes estimated plant aboveground live biomass data measured in 1 m x 1 m quadrats at several sites and experiments under the Sevilleta LTER program. Quadrat locations span four distinct ecosystems and their ecotones: creosotebush dominated Chihuahuan Desert shrubland (est. winter 1999), black grama-dominated Chihuahuan Desert grassland (est. winter 1999), blue grama-dominated Plains grassland (est. winter 2002), and pinon-juniper woodland (est. winter 2003). Data on plant cover and height for each plant species are collected per individual plant or patch (for clonal plants) within 1 m x 1 m quadrats. These data inform population dynamics of foundational and rare plant species. Biomass is estimated using plant allometries from non-destructive measurements of plant cover and height, and can be used to calculate net primary production (NPP), a fundamental ecosystem variable that quantifies rates of carbon consumption and fixation. Estimates of plant species cover, total plant biomass, or NPP can inform understanding of biodiversity, species composition, and energy flow at the community scale of biological organization, as well as spatial and temporal responses of plants to a range of ecological processes and direct experimental manipulations. The cover and height of individual plants or patches are sampled twice yearly (spring and fall) in permanent 1m x 1m plots within each site or experiment. This dataset includes core site monitoring data (CORE, GRIDS, ISOWEB, TOWER), observations in response to wildfire (BURN), and experimental treatments of extreme drought and delayed monsoon rainfall (EDGE), physical disturbance to biological soil crusts on the soil surface (CRUST), interannual variability in precipitation (MEANVAR), intra-annual variability via additions of monsoon rainfall (MRME), additions of nitrogen as ammonium nitrate (FERTILIZER), additions of nitrogen x phosphorus x potassium (NutNet), and interacting effects of nighttime warming, nitrogen addition, and El Niño winter rainfall (WENNDEx). To build allometric equations that relate biomass to plant cover or volume, the dataset "SEV-LTER quadrat plant cover and height data all sites and experiments" is used with a separate dataset of selectively harvested plant species "SEV-LTER Plant species mass data for allometry." Together, these datasets produced “SEV-LTER quadrat plant species biomass all sites and experiments” using the scripts posted with the allometry dataset. Data from the CORE sites in this dataset were designated as NA-US-011 in the Global Index of Vegetation-Plot Databases (GIVD). Data from the TOWER sites in this dataset are linked to Ameriflux sites: ameriflux.lbl.gov/doi/AmeriFlux/US-Seg and ameriflux.lbl.gov/sites/siteinfo/US-Ses.

Publication Date:

2024-02-22

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

1999-06-02

End:

2023-10-24

People and Organizations
Contact:	Information Manager (University of New Mexico) [ email ]
Creator:	Baur, Lauren (University of New Mexico)
Creator:	Collins, Scott (University of New Mexico)
Creator:	Muldavin, Esteban (University of New Mexico)
Creator:	Rudgers, Jennifer A (University of New Mexico)
Creator:	Pockman, William T. (University of New Mexico)
Associate:	Cafferky, Samantha (University of New Mexico, Data management)
Associate:	Cardenas, Pablo (University of New Mexico, Field crew lead)
Associate:	McLaughlin, Jade (University of New Mexico, Field crew)
Associate:	Johnson, Jessica (University of New Mexico, Field crew)
Associate:	Hallmark, Alesia J (University of New Mexico, Graduate student)
Associate:	Baker, Stephanie R (University of New Mexico, Former field crew)

Data Entities
Data Table Name:	sev331_quadrat_plant_species_biomass.csv
Description:	SEV-LTER quadrat plant species biomass all sites and experiments

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-sev/331/2/cb45bdfc2edb50ef242d29f16055ab5b
Name:	sev331_quadrat_plant_species_biomass.csv
Description:	SEV-LTER quadrat plant species biomass all sites and experiments
Number of Records:	189804
Number of Columns:	27

Table Structure

Object Name:

sev331_quadrat_plant_species_biomass.csv

Size:

32898598 byte

Authentication:

b6e569e7bdfad6b5f65025a1c0aad3de Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Column Name:

site

year

season

date

web

transect

block

plot

subplot

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.

The year in which data was collected.

The season in which data was collected.

The date data was collected.

The number of the web for sites that have sampling web designs

The letter code for the transect for sites that have transect designs

The block number for sites that have block designs

The plot number or letter for sites that have plot designs

The subplot character for sites that have subplots

The quadrat number which is nested within each site, plot, block, etc. depending on the design

The treatment applied to a sampled unit.

USDA plant code for the plant species

Genus of the plant

Species name of the plant

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

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

Standardized Precipitation-Evapotranspiration Index

Storage Type:

string

date

string

date

string

float

string

float

Measurement Type:

nominal

dateTime

nominal

dateTime

nominal

ratio

nominal

ratio

Measurement Values Domain:

Definition

text

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

Definition

text

Definition

text

Definition

text

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	AA
Definition	control plot: ambient mean and ambient variance
Source

Code Definition

Code	AE
Definition	ambient precipitation mean and elevated variance
Source

Code Definition

Code	B
Definition	burned
Source

Code Definition

Code	C
Definition	control plot
Source

Code Definition

Code	CF
Definition	control rainfall and nitrogen fertilizer addition
Source

Code Definition

Code	D
Definition	delayed monsoon treatment
Source

Code Definition

Code	E
Definition	event size reduction treatment, -66% ambient
Source

Code Definition

Code	F
Definition	nitrogen fertilizer addition
Source

Code Definition

Code	GIRDLE
Definition	Pinus edulis killed by girdling
Source

Code Definition

Code	K
Definition	potassium fertilizer addition
Source

Code Definition

Code	L
Definition	intra-annual rainfall of few, large rain additions
Source

Code Definition

Code	LF
Definition	intra-annual rainfall of few, large rain additions and nitrogen fertilizer addition
Source

Code Definition

Code	N
Definition	nitrogen fertilizer addition
Source

Code Definition

Code	NK
Definition	nitrogen fertilizer addition and potassium fertilizer addition
Source

Code Definition

Code	NP
Definition	nitrogen fertilizer addition and phosphorus fertilizer addition
Source

Code Definition

Code	NPK
Definition	nitrogen fertilizer addition and phosphorus fertilizer addition and potassium fertilizer addition
Source

Code Definition

Code	P
Definition	phosphorus fertilizer addition
Source

Code Definition

Code	PK
Definition	phosphorus fertilizer addition and potassium fertilizer addition
Source

Code Definition

Code	PN
Definition	winter precipitation addition and nitrogen fertilizer addition
Source

Code Definition

Code	RA
Definition	reduced mean precipitation by 25%
Source

Code Definition

Code	RE
Definition	reduced precipitation mean and elevated variance
Source

Code Definition

Code	S
Definition	intra-annual rainfall of many, small rain additions
Source

Code Definition

Code	SF
Definition	intra-annual rainfall of many, small rain additions and nitrogen fertilizer addition
Source

Code Definition

Code	STOMP
Definition	soil disturbance treatment
Source

Code Definition

Code	T
Definition	nighttime warming
Source

Code Definition

Code	TN
Definition	nighttime warming and nitrogen fertilizer addition
Source

Code Definition

Code	TP
Definition	nighttime warming and winter precipitation addition
Source

Code Definition

Code	TPN
Definition	nighttime warming and winter precipitation addition and nitrogen fertilizer addition
Source

Definition

text

Definition

text

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	annual
Definition	Plant that completes life cycle in one growing season
Source

Code Definition

Code	perennial
Definition	Plant that lives for multiple years
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	C3
Definition	Plant that uses the C3 photosynthetic pathway
Source

Code Definition

Code	C3-C4
Definition	Plant with traits intermediate between C3 and C4 plants
Source

Code Definition

Code	C4
Definition	Plant that uses the C4 photosynthetic pathway
Source

Code Definition

Code	CAM
Definition	Plant that uses the CAM photosynthetic pathway
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	forb
Definition	Non-graminoid herbaceous plant
Source

Code Definition

Code	grass
Definition	Plant in the family Poaceae
Source

Code Definition

Code	shrub
Definition	Short, multi-stemmed woody plant
Source

Unit	percent
Type	real
Min	0
Max	2039

Unit	cubicMeter
Type	real
Min	0
Max	51500

Unit	gram
Type	real
Min	0
Max	2941.752

Unit	gram
Type	real
Min	0
Max	2941.752

Definition

text

Definition

text

Unit	millimeter
Type	real
Min	0
Max	287.755

Unit	nominalDay
Type	real
Min	1069.1219735
Max	4831.7415

Unit	dimensionless
Type	real
Min	-1.89448394635455
Max	2.17022311321317

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

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:

LTER controlled vocabulary

annual net primary production, biodiversity, burning, climate, community patterns, community structure, deserts, disturbance, disturbances, droughts, ecology, ecosystem properties, elevation, fertilization, fertilizer, fires, foliage, forbs, grasses, grasslands, herbs, litter, long term, measurements, net primary productivity, nitrogen deposition, nutrients, organisms, permanent plots, plant communities, plant cover, plant ecology, plant growth, plant species composition, plant species, plants, precipitation, primary production, production, productivity, recovery, seasonality, shrubs, simulation, soil moisture, soil warming, species diversity, species richness, stems, succession, successional dynamics, transects, vegetation dynamics, vegetation, wildfires, communities, forests, species

LTER core research area

primary production

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 -

Plant species cover and height data are collected twice each year, spring and fall, for all sites. Spring measurements are taken in April or May when shrubs and spring annuals have reached peak biomass. Fall measurements are taken in September or October when summer annuals have reached peak biomass but prior to killing frosts. Winter measurements were taken in February before the onset of spring growth, but these winter sampling periods ended in 2007.

Vegetation data are collected on a hand-held computer. Early years used a palm top, and currently cell phones are used with a stylus.

A 1m x 1m PVC-frame is placed over the fiberglass stakes that mark the diagonal corners of each quadrat. When measuring cover it is important to stay centered over the vegetation in the quadrat to prevent errors caused by angle of view (parallax). Each PVC-frame is divided into 100 squares, marked off with nylon string. The dimensions of each square are 10cm x 10cm, and each square represents 1 percent of the total area. The cover (area) and height of each individual live (green) vegetative unit that falls within the 1m x 1m quadrat is measured. A vegetative unit consists of an individual size class (as defined by a unique cover and height) of a particular species within a quadrat. Cover is quantified by counting the number of 10cm x 10cm squares filled by each vegetative unit.

Niners and plexidecs are additional tools that help to accurately determine the cover of a vegetative unit. A niner is a small, hand-held PVC frame used to measure canopy systems or low-growing plants. The niner is also made of ½” PVC and nylon string. The interior dimensions of the niner square are 30 cm on each side, and the enclosed area is divided into nine 10 cm x 10 cm squares. Each square represents 1% of the total 1m2 quadrat cover, with the entire niner representing 30% of the total 1m2 quadrat cover. Plexidecs are used to measure vegetative units with covers < 1%. They are small, clear, ¼” plexiglass squares that are held over vegetation. A plexidec is 0.71 cm on each side, representing a cover of 0.5%. Squares are etched with dimensions of 0.1, 0.22, 0.32, and 0.5 cm. These squares delineate covers of 0.01%, 0.05%, 0.10%, and 0.25% respectively. To help relocate a plexidec dropped into vegetation, tie brightly colored surveyor's tape to a small hole drilled into one corner.

It is extremely important that cover and height measurements remain consistent over time to ensure that regressions based on this data remain valid. Field crew members should calibrate with each other to ensure that observer bias does not influence data collection.

Cover and Height Measurements -

see the Methods section of the following data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sev&identifier=330

Biomass Measurements -

see the Methods section of the following data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sev&identifier=157

Current methods for estimating allometries are explained in this data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sev&identifier=319

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:

Lauren Baur

Organization:

University of New Mexico

Email Address:

lbaur@unm.edu

Individual:

Scott Collins

Organization:

University of New Mexico

Email Address:

scollins@unm.edu

Id:

https://orcid.org/0000-0002-0193-2892

Individual:

Esteban Muldavin

Organization:

University of New Mexico

Email Address:

muldavin@unm.edu

Individual:

Jennifer A Rudgers

Organization:

University of New Mexico

Email Address:

jrudgers@unm.edu

Id:

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

Individual:

William T. Pockman

Organization:

University of New Mexico

Email Address:

pockman@unm.edu

Id:

https://orcid.org/0000-0002-3286-0457

Contacts:

Organization:

University of New Mexico

Position:

Information Manager

Email Address:

sevim@unm.edu

Associated Parties:

Individual:

Samantha Cafferky

Organization:

University of New Mexico

Email Address:

slc14@unm.edu

Role:

Data management

Individual:

Pablo Cardenas

Organization:

University of New Mexico

Email Address:

pancar81@unm.edu

Role:

Field crew lead

Individual:

Jade McLaughlin

Organization:

University of New Mexico

Email Address:

jmclaugh@unm.edu

Role:

Field crew

Individual:

Jessica Johnson

Organization:

University of New Mexico

Email Address:

jjohnson6@unm.edu

Role:

Field crew

Individual:

Alesia J Hallmark

Organization:

University of New Mexico

Email Address:

alesiahallmark@unm.edu

Id:

https://orcid.org/0000-0002-1024-5779

Role:

Graduate student

Individual:

Stephanie R Baker

Organization:

University of New Mexico

Email Address:

srbaker@unm.edu

Role:

Former field crew

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

1999-06-02

End:

2023-10-24

Sampling Site:

Description:

core_black - Five Points Black Grama is a core monitoring site established in 1999 at the transition between Chihuahuan Desert shrubland and Chihuahuan Desert Grassland ecosystems. Meteorological data, rodent abundance, bee diversity, plant phenology, prior pitfall trap arthropod monitoring, and plant species cover and biomass are co-located at core monitoring sites. It is the site of the unburned black grama component of the Burn study. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire had reached the Five Points Black Grama site. Only portions of this site were burned, and some core monitoring quadrats were moved to new locations to maintain a set of unburned core quadrats. See BURN methods as well as individual project notes for further information on the effects of the burn at other sites. The Five Points Black Grama site is ecotonal, bordering Chihuahuan Desert shrubland at its southern extent and Great Plains Grassland at its northern, more mesic boundary. Characteristically, the dominant grass is black grama (Bouteloua eriopoda).

Site Coordinates:

Longitude (degree):

-106.736

Latitude (degree):

34.3331

Sampling Site:

Description:

grid_black - Five Points Black Grama is a core monitoring site established in 1999 at the transition between Chihuahuan Desert shrubland and Chihuahuan Desert Grassland ecosystems. Meteorological data, rodent abundance, bee diversity, plant phenology, prior pitfall trap arthropod monitoring, and plant species cover and biomass are co-located at core monitoring sites. It is the site of the unburned black grama component of the Burn study. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire had reached the Five Points Black Grama site. Only portions of this site were burned, and some core monitoring quadrats were moved to new locations to maintain a set of unburned core quadrats. See BURN methods as well as individual project notes for further information on the effects of the burn at other sites. The Five Points Black Grama site is ecotonal, bordering Chihuahuan Desert shrubland at its southern extent and Great Plains Grassland at its northern, more mesic boundary. Characteristically, the dominant grass is black grama (Bouteloua eriopoda).

Site Coordinates:

Longitude (degree):

-106.736

Latitude (degree):

34.3331

Sampling Site:

Description:

core_blue - The Blue Grama (Great Plains grassland) core site was established in 2002 in blue grama dominated grassland along the piedmont of the Los Pinos Mountains. . Meteorological data, rodent abundance, bee diversity, plant phenology, and plant species cover and biomass are co-located at this site. Vegetation is characterized as Great Plains Grassland, dominated by blue grama (Bouteloua gracilis), along with black grama (B. eriopoda), and galleta grass (Pleuraphis jamesii), and with tree cholla (Cylindropuntia imbricata), dropseed (Sporobulus spp.), sand muhly (Muhlenbergia arenicola), and Great Plains yucca (Yucca glauca) as associated species.

Site Coordinates:

Longitude (degree):

-106.631

Latitude (degree):

34.3348

Sampling Site:

Description:

grid_blue - The Blue Grama (Great Plains grassland) core site was established in 2002 in blue grama dominated grassland along the piedmont of the Los Pinos Mountains. . Meteorological data, rodent abundance, bee diversity, plant phenology, and plant species cover and biomass are co-located at this site. Vegetation is characterized as Great Plains Grassland, dominated by blue grama (Bouteloua gracilis), along with black grama (B. eriopoda), and galleta grass (Pleuraphis jamesii), and with tree cholla (Cylindropuntia imbricata), dropseed (Sporobulus spp.), sand muhly (Muhlenbergia arenicola), and Great Plains yucca (Yucca glauca) as associated species.

Site Coordinates:

Longitude (degree):

-106.631

Latitude (degree):

34.3348

Sampling Site:

Description:

core_creosote - The creosote core site was established in 1999 in an area dominated by creosote bush (Larrea tridentata), with sparse herbaceous cover. Meteorological data, rodent abundance, bee diversity, plant phenology, prior pitfall trap arthropod monitoring, and plant species cover and biomass are co-located at this site. The Five Points Creosote site is characterized as Chihuahuan Desert Shrubland, dominated by a creosote overstory, with broom snakeweed, purple prickly pear (Opuntia macrocentra), and soapweed yucca as co-occurring shrubs. The site is also characterized by numerous, dense, grass-dominated patches, reflecting proximity to the Five Points Black Grama Site. Common grasses are black grama (Bouteloua eriopoda), fluffgrass (Dasyochloa pulchellum), burrograss (Scleropogon brevifolia), bushmuhly (Muhlenbergia porteri), and galleta grass (Pleuraphis jamesii). Notable forbs include field bahia (Bahia absinthifolia), baby aster (Chaetopappa ericoides), plains hiddenflower (Cryptantha crassisepala), Indian rushpea (Hoffmannseggia glauca), Fendlers bladderpod (Lesquerella fendleri), and globemallow (Sphaeralcea spp.).

Site Coordinates:

Longitude (degree):

-106.736

Latitude (degree):

34.3331

Sampling Site:

Description:

grid_creosote - The creosote core site was established in 1999 in an area dominated by creosote bush (Larrea tridentata), with sparse herbaceous cover. Meteorological data, rodent abundance, bee diversity, plant phenology, prior pitfall trap arthropod monitoring, and plant species cover and biomass are co-located at this site. The Five Points Creosote site is characterized as Chihuahuan Desert Shrubland, dominated by a creosote overstory, with broom snakeweed, purple prickly pear (Opuntia macrocentra), and soapweed yucca as co-occurring shrubs. The site is also characterized by numerous, dense, grass-dominated patches, reflecting proximity to the Five Points Black Grama Site. Common grasses are black grama (Bouteloua eriopoda), fluffgrass (Dasyochloa pulchellum), burrograss (Scleropogon brevifolia), bushmuhly (Muhlenbergia porteri), and galleta grass (Pleuraphis jamesii). Notable forbs include field bahia (Bahia absinthifolia), baby aster (Chaetopappa ericoides), plains hiddenflower (Cryptantha crassisepala), Indian rushpea (Hoffmannseggia glauca), Fendlers bladderpod (Lesquerella fendleri), and globemallow (Sphaeralcea spp.).

Site Coordinates:

Longitude (degree):

-106.736

Latitude (degree):

34.3331

Sampling Site:

Description:

core_pj - The Cerro Montosa pinon-juniper site has been the location of major Sevilleta LTER research since 1989. Meteorological trends, net primary productivity, rodent and ground-dwelling arthropod populations, mycorrhizal responses to fertilizer, pinon-juniper fruit and nut production, and pinon mortality are all being investigated at this site. Previous studies have included analyses of pinon tree rings for regional climate reconstruction. The vegetation is New Mexico pinon-juniper Woodland, dominated by Colorado pinon (Pinus edulis) and one-seed juniper (Juniperus monosperma), and accompanied by gray oak (Quercus grisea). There is a diverse shrub component, including scrub live oak (Q. turbinella), mountain mahogany (Cercocarpus montanus), broom snakeweed (Gutierrezia sarothrae), sacahuista (Nolina microcarpa), red barberry (Mahonia haematocarpa), Apache plume (Fallugia paradoxa), tree cholla (Opuntia imbricata), skunkbush (Rhus trilobata), and banana yucca (Yucca baccata). Grass diversity is also high, and open spaces between trees are dominated by blue grama (Bouteloua gracilis), with hairy and sideoats grama (B. hirsuta and B. curtipendula) and black grama (B. eriopoda) also abundant. Other common grasses include purple threeawn (Aristida purpurea), wolftail (Lycurus phleoides), mountain and ring muhly (Muhlenbergia montanus and M. torreyi), and New Mexican porcupinegrass (Heterostipa neomexicana). Common forbs include small-flowered milkvetch (Astragalus nuttallianus), white sagebrush (Artemesia ludoviciana), Fendler's arabis (Arabis fendleri), Fendler's sandmat (Chamaesyce fendleri), New Mexico thistle (Cirsium neomexicanum), false pennyroyal (Hedeoma oblongifolia), bastard sage (Eriogonum wrightii), pingue rubberweed (Hymenoxys richardsonii), large four o'clock (Mirabilis multiflora), Fendler's penstemon (Penstemon fendleri), and globemallows (Sphaeralcea spp.).

Site Coordinates:

Longitude (degree):

-106.535

Latitude (degree):

34.368

Sampling Site:

Description:

mixed_grass - Location: The mixed grass site includes a burned and unburned area. The mixed grass unburned site is located just to the southeast of the Deep Well weather station, on both sides of the main McKenzie Flats road. The mixed grass burned site is on the east side of the road north of Deep Well. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. The fire reached the mixed-grass unburned plots on August 5, 2009, consuming them in their entirety. As a result, in the spring of 2010, the mixed-grass unburned plots were moved to a different area within Deep Well, to the southwest of the Warming site on the west side of the road. Vegetation: This is a mixed grass area dominated by black grama (Bouteloua eriopoda) and blue grama (B. gracilis) with dropseed (Sporobolus spp.) and galleta grass (Pleuraphis jamesii) also prominent. History: In 2003, the U.S. Fish and Wildlife Service conducted a prescribed fire over a large part of the northeast corner of the Sevilleta NWR, including the area near Deep Well containing the mixed grass site.

Site Coordinates:

Longitude (degree):

-106.691

Latitude (degree):

34.35787

Sampling Site:

Description:

mixed_shrub - Location: The mixed shrub location consists of burned and unburned areas located north of Mackenzie South Road. Both the mixed shrub burned and mixed shrub unburned areas are on the north side of the road running southeast from Five Points.Vegetation: This area is dominated by creosotebush (Larrea tridenta) but also has a relatively dense understory of black grama (Bouteloua eriopoda) in comparison to core creosote shrubland. History: The northwest half of the site was burned in June 2003. The southeast half was used as the control. Plots were established in spring 2004.

Site Coordinates:

Longitude (degree):

-106.696

Latitude (degree):

34.31426

Sampling Site:

Description:

grassland_burn - The grassland burn site is located on the east side of the McKenzie Flats road toward Five Points from Deep Well. Vegetation: This is a Chihuahuan desert grassland dominated by black grama (Bouteloua eriopoda) with some dropseed (Sporobolus spp.).

Site Coordinates:

Longitude (degree):

-106.69596

Latitude (degree):

34.33498

Sampling Site:

Description:

crust_grass - This biocrust grassland site is just north of the Five Points transition zone between Chihuahuan Desert Scrub shrubland and Chihuahuan Desert Grassland ecosystems and well south of the long-term Deep Well monitoring site. The nearest meteorological station is at Five Points. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire burned this site. The dominant grasses are black grama (Bouteloua eriopoda) and blue grama (B. gracilis), with several Sporobolus species.

Site Coordinates:

Longitude (degree):

-106.70551

Latitude (degree):

34.33516

Sampling Site:

Description:

crust_creosote - The Five Points area falls along the transition between the Chihuahuan Desert Scrub shrubland and ChihuahuanDesert Grassland ecosystems. This site is north of the core creosote site, on the other side of the E-W Five Points road. The site is characterized as Chihuahuan Desert Scrub, dominated by a creosote overstory, with broom snakeweed as a co-occurring shrub. The site is also characterized by grass-dominated patches, reflecting proximity to the Five Points Black Grama Site. Dominant grasses are black grama (Bouteloua eriopoda), fluffgrass (Dasyochloa pulchellum), burrograss (Scleropogon brevifolia), and galleta grass (Pleuraphis jamesii).

Site Coordinates:

Longitude (degree):

-106.73406

Latitude (degree):

34.34048

Sampling Site:

Description:

crust_pj - This biocrust site is located in New Mexico pinon-juniper Woodland, dominated by Colorado pinon (Pinus edulis) and one-seed juniper (Juniperus monosperma), and accompanied by gray oak (Quercus grisea). The nearest meteorological station is at Goat Draw. Grass diversity is high, and open spaces between trees are dominated by blue grama (Bouteloua gracilis), with other common grasses including hairy and sideoats grama (B. hirsuta and B. curtipendula) and black grama (B. eriopoda).

Site Coordinates:

Longitude (degree):

-106.523

Latitude (degree):

34.41076

Sampling Site:

Description:

EDGE_black - Description: The Extreme Drought in Grasslands Experiment (EDGE) was started in 2012 as part of a cross-site extreme drought experiment, and it included sites in Colorado, Wyoming and Kansas. There are two EDGE sites at Sevilleta, one in black grama (Bouteloua eriopoda) dominated grassland (EDGE_black) and one in blue grama (B. gracilis) dominated grassland (EDGE_blue). Experimental treatments. The EDGE experiment manipulates rainfall amount and timing using a randomized block design with a total of thirty 3 x 4 m plots in each grassland ecosystem. Control plots (n=10) receive only ambient precipitation. In a second treatment (n=10 each) rainout shelters were erected each year from 2013-2019 that removed 66% of growing season precipitation from April through mid-September. In 2020 we began drought recovery observations and experiments. A second on-going treatment started in 2013 involves complete rainout shelters that capture and remove all precipitation in July and August and then the captured precipitation is reapplied via overhead sprinklers to the plots in September and October. This treatment extends the hyperarid period between spring and summer rains, effectively delaying the summer monsoon by 2 months. iii. Core measurements. All EDGE replicates are instrumented with soil moisture, and soil and air temperature probes, and three replicates of each treatment at each site have soil CO2 probes. Soil CO2 concentration is measured at 15 min intervals with Vaisala CARBOCAP CO2 sensors (GMM222, Vaisala, Finland) placed at three depths (5, 10, and 20 cm). We calculate soil respiration using the flux-gradient method. ANPP and plant species composition are measured in spring and fall each year initially in four 1-m2 quadrats twice yearly but these measurements were reduced to two quadrats in 2019. Occasionally, belowground NPP has been measured in 5 replicates of each treatment with 5cm diameter by 20cm deep root ingrowth bags during the monsoon season. In winter 2019 on root ingrowth donut was installed in each replicate of each treatment and each EDGE site. The EDGE Black Grama site is located within Five Points Black Grama area, just to the west of Black Grama Core site. Vegetation is dominated by black grama grass (Bouteloua eriopoda). Broom snakeweed (Gutierrezia sarothrae) and Sphaeralcea polychroma are common forbs/sub-shrubs.

Site Coordinates:

Longitude (degree):

-106.728

Latitude (degree):

34.3373

Sampling Site:

Description:

EDGE_blue - Description: The Extreme Drought in Grasslands Experiment (EDGE) was started in 2012 as part of a cross-site extreme drought experiment, and it included sites in Colorado, Wyoming and Kansas. There are two EDGE sites at Sevilleta, one in black grama (Bouteloua eriopoda) dominated grassland (EDGE_black) and one in blue grama (B. gracilis) dominated grassland (EDGE_blue). Experimental treatments. The EDGE experiment manipulates rainfall amount and timing using a randomized block design with a total of thirty 3 x 4 m plots in each grassland ecosystem. Control plots (n=10) receive only ambient precipitation. In a second treatment (n=10 each) rainout shelters were erected each year from 2013-2019 that removed 66% of growing season precipitation from April through mid-September. In 2020 we began drought recovery observations and experiments. A second on-going treatment started in 2013 involves complete rainout shelters that capture and remove all precipitation in July and August and then the captured precipitation is reapplied via overhead sprinklers to the plots in September and October. This treatment extends the hyperarid period between spring and summer rains, effectively delaying the summer monsoon by 2 months. iii. Core measurements. All EDGE replicates are instrumented with soil moisture, and soil and air temperature probes, and three replicates of each treatment at each site have soil CO2 probes. Soil CO2 concentration is measured at 15 min intervals with Vaisala CARBOCAP CO2 sensors (GMM222, Vaisala, Finland) placed at three depths (5, 10, and 20 cm). We calculate soil respiration using the flux-gradient method. ANPP and plant species composition are measured in spring and fall each year initially in four 1-m2 quadrats twice yearly but these measurements were reduced to two quadrats in 2019. Occasionally, belowground NPP has been measured in 5 replicates of each treatment with 5cm diameter by 20cm deep root ingrowth bags during the monsoon season. In winter 2019 on root ingrowth donut was installed in each replicate of each treatment and each EDGE site. The EDGE Black Grama site is located within Five Points Black Grama area, just to the west of Black Grama Core site. Vegetation is dominated by black grama grass (Bouteloua eriopoda). Broom snakeweed (Gutierrezia sarothrae) and Sphaeralcea polychroma are common forbs/sub-shrubs. The EDGE Blue Grama site is located on the east side of McKenzie Flats approximately 0.5 km due west from the foothills of the Los Pinos Mountains. The study is also just northeast of the Blue Grama Core site and dominated by blue grama grass (Bouteloua gracilis) with black grama (B. eriopoda) as the next dominant grass.

Site Coordinates:

Longitude (degree):

-106.623

Latitude (degree):

34.3421

Geographic Region:

Description:

fertilizer - The nitrogen fertilization experiment was designed to determine the effects of increased nitrogen availability on above- and belowground processes in desert grassland. In 1995, twenty 10 m x 5 m plots were established within the transition between Chihuahuan Desert grassland and shortgrass steppe. Ten of the plots were randomly assigned to the fertilizer treatment and ten plots served as controls. Since 1995, 10 g N m-2 as NH4NO3 has been applied to the 10 treatment plots. This level of N addition was chosen to reflect potential rates of atmospheric deposition near urban areas in the US Southwest. A management fire was allowed to burn through all the plots in June 2003.Starting in 2004, vegetation within four 1-m2 subplots in each treatment and control plot was measured during the peak spring and fall growing seasons for species composition and ANPP. For every subplot, the biomass of each species was determined allometrically from cover and height size classes. Starting in 2005, belowground net primary production (BNPP) was measured using root ingrowth donuts. One root donut was located in the center of each plot to measure annual root growth within shallow (0-15 cm) and deep (15-30 cm) soil layers. The nitrogen fertilization plots are located ~0.5 km south from the Black Butte gate on the east side of the McKenzie Flats road to Five Points. This site is dominated by a mixture of blue grama grass (Bouteloua gracilis) and black grama grass (B. eriopoda).

Bounding Coordinates:

Northern:	34.4013	Southern:	34.4012
Western:	-106.677	Eastern:	-106.676

Sampling Site:

Description:

iso_web - Web 1 - Monthly mammal trapping, including stable isotope analysis, is carried out at two webs (iso_web) located on either side of McKenzie South Road. Since 2018, vegetation has been sampled on these webs to link relationships between mammal populations and plant communities. Vegetation in the area is dominated by creosote (Larrea tridentata), with other shrubs such as fourwing saltbush (Atriplex canescens), winterfat (Krascheninnikovia lanata) and broom snakeweed (Gutierrezia sarothrae) also abundant, and with black grama (Bouteloua eriopoda) as the dominant grass. The southeastern web (Web 1) is shrub-dominated, while the northwestern web (Web 2) is grass-dominated.

Site Coordinates:

Longitude (degree):

-106.6969856

Latitude (degree):

34.31074421

Sampling Site:

Description:

iso_web - Web 2 - Monthly mammal trapping, including stable isotope analysis, is carried out at two webs (iso_web) located on either side of McKenzie South Road. Since 2018, vegetation has been sampled on these webs to link relationships between mammal populations and plant communities. Vegetation in the area is dominated by creosote (Larrea tridentata), with other shrubs such as fourwing saltbush (Atriplex canescens), winterfat (Krascheninnikovia lanata) and broom snakeweed (Gutierrezia sarothrae) also abundant, and with black grama (Bouteloua eriopoda) as the dominant grass. The southeastern web (Web 1) is shrub-dominated, while the northwestern web (Web 2) is grass-dominated.

Site Coordinates:

Longitude (degree):

-106.6985059

Latitude (degree):

34.31805657

Sampling Site:

Description:

meanvar_blue - The Mean-Variance blue grama site is nested within the core_blue, blue grama-dominated core monitoring site, adjacent to the blue grama meteorological station. Vegetation is characterized as Plains-Mesa Grassland, dominated by blue grama (Bouteloua gracilis) followed by black grama (B. eriopoda) and galleta grass (Pleuraphis jamesii), and with tree cholla (Cylindropuntia imbricata) and dropseed (Sporobulus spp.) also common.

Site Coordinates:

Longitude (degree):

-106.63121

Latitude (degree):

34.339

Sampling Site:

Description:

meanvar_black - The Mean-Variance experiment black grama-dominated site is located near Five Points Black Grama, to the west of Black Grama Core site and to the east of the EDGE black grama site. Vegetation is dominated by black grama grass (Bouteloua eriopoda). Broom snakeweed (Gutierrezia sarothrae) is a common sub-shrub, and there are a few scattered individuals of creosotebush (Larrea tridentata). Much of the site is underlain by a caliche layer.

Site Coordinates:

Longitude (degree):

-106.7273

Latitude (degree):

34.33563

Sampling Site:

Description:

MRME - Monsoon Rainfall Manipulation Experiment (MRME) MRME started in 2007 to determine experimentally how increased precipitation variability affects community reordering and ecosystem processes in black grama grassland. Experimental treatments. MRME manipulates rainfall event size and frequency using a fully randomized design with a total of thirteen 8 x 13 m plots. Control plots (n=3) receive ambient precipitation. Two rainfall treatments (n=5) are applied each year during the monsoon: (1) ambient rainfall plus one 20 mm rain event each month (increased rainfall event size), and (2) ambient rainfall plus four 5 mm rain events each month (increased rainfall event frequency). Thus, we add the same amount of rain over the monsoon season (60 mm), but we vary the size and frequency of applied rains, increasing variability without imposing unrealistic extreme rainfall amounts. Total precipitation added per monsoon season is equivalent to an increase of ~40% over an average year (long-term monsoon mean ~150 mm). The 20 mm events simulate more extreme precipitation events predicted by climate models. The 5 mm events represent empirically based patterns of precipitation event size over the prior 100 years. iii. Core measurements. Each MRME replicate is instrumented with soil moisture, temperature, and CO2 probes. Each replicate has two 2 x 2 m subplots, one of which is fertilized with 5 g N m-2 y-1 as NH4NO3. ANPP and plant species composition are measured in two 1-m2 quadrats in each fertilized and control subplot twice yearly. Belowground NPP is measured with root ingrowth donuts. The Monsoon Rainfall Manipulation Experiment (MRME) site is located north of the Five Points Black Grama (core_black) site. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. The MRME site was entirely burned on this date, with all plots subjected to fire of comparable intensity. This site is dominated by black grama (Bouteloua eriopoda). Other prevalent grasses include Sporobolus contractus, S. cryptandrus, S. flexuosus, Muhlenbergia arenicola, and Bouteloua gracilis.

Site Coordinates:

Longitude (degree):

-106.726823

Latitude (degree):

34.344077

Sampling Site:

Description:

NutNet - In 2007, a nutrient addition experiment was established following protocols of the Nutrient Network (NutNet). In 2009 the site was entirely burned in a wildfire, The nutrient experiment is a fully crossed, completely randomized design with eight treatment combinations, replicated five times each. Nutrients are added in a fully factorial design of nitrogen (N), phosphorus (P), or potassium plus other micronutrients (K), each added at a rate of 10 g m-2 yr-1 although micronutrients were only added to each plot in the first year. Nutrients are added annually in late June before the start of the summer monsoon. Treatments were randomly assigned to the forty 5 m x 5 m plots, with a 1 m buffer separating each plot. Plant community composition, percentage cover of each species, and aboveground net primary production (NPP) are measured in spring and fall each year in permanently marked 1-m2 subplots within each treatment plot. Aboveground net primary production is estimated based on plant height and volume as in other experiments at Sevilleta. NutNet plots are located at Deep Well on McKenzie Flats road, The vegetation is northern Chihuahuan Desert grassland and is considered a mixed grass site co-dominated byblack grama and blue grama, along with scattered forbs and small shrubs.

Site Coordinates:

Longitude (degree):

-106.688

Latitude (degree):

34.3591

Sampling Site:

Description:

tower_west - This Sevilleta Desert Grassland site is located within the McKenzie Flats area of the Sevilleta National Wildlife Refuge (NWR), central New Mexico. This tower is located near the Deep Well site on McKenzie Flats, the site of the longest running SEV LTER met station, number 40, which has been active since 1988. It has been running since 2007, and has been an Ameriflux core site since 2013 (US-Seg). Data from 2007- are available at Ameriflux Management Project website https://ameriflux.lbl.gov/sites/siteinfo/US-Seg. In addition to studies of meteorological variables, core line-intercept vegetation transects and line-intercept transects from the 1995 & 2001 Deep Well fires are sampled here. Historically, this area was used for livestock grazing; however, the McKenzie Flats have not been grazed since 1973 and the effects of this previous grazing are considered negligible for the purposes of this study. As the name suggests, McKenzie Flats is an extensive (~130 km2), nearly flat, mixed-species desert grassland bounded on the east by Los Pinos Mountains and on the west by the Rio Grande. This site experienced a severe burn in August 2009. 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. The vegetation 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 and Gutierreia sarothrae. Herbaceous plants include Plantago purshii, Oenothera caespitosa, Cymopterus acaulis., and globe mallows (Sphaeralcea spp.). This site is designated by Ameriflux as GRA [Grasslands: Lands with herbaceous types of cover. Tree and shrub cover is less than 10%. Permanent wetlands lands with a permanent mixture of water and herbaceous or woody vegetation. The vegetation can be present in either salt, brackish, or freshwater.]

Site Coordinates:

Longitude (degree):

-106.7019

Latitude (degree):

34.3623

Sampling Site:

Description:

tower_east - This Sevilleta Desert Grassland site is also located within the McKenzie Flats area of the Sevilleta National Wildlife Refuge (NWR), central New Mexico. The eastern grassland tower site was installed on the east side of the McKenzie Flats road to Five Points in 2010, after the severe fire burned across the tower_west site in 2009. Historically, this area was used for livestock grazing; however, the McKenzie Flats have not been grazed since 1973 and the effects of this previous grazing are considered negligible for the purposes of this study. As the name suggests, McKenzie Flats is an extensive (~130 km2), nearly flat, mixed-species desert grassland bounded on the east by Los Pinos Mountains and on the west by the Rio Grande. This site was burned in 2003, as part of a controlled burn study. The vegetation 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, and Gutierrezzia sarothrae. Herbaceous plants include Plantago purshii, globe mallows (Sphaeralcea spp.), and Solanum elaeagnifolium. This site is designated by Ameriflux as GRA [Grasslands: Lands with herbaceous types of cover. Tree and shrub cover is less than 10%. Permanent wetlands lands with a permanent mixture of water and herbaceous or woody vegetation. The vegetation can be present in either salt, brackish, or fresh water.]

Site Coordinates:

Longitude (degree):

-106.680492

Latitude (degree):

34.358107

Sampling Site:

Description:

warming - Description: The night time Warming, El Nino, Nitrogen Deposition Experiment (WENNDEx) was established in 2006 in mixed blue grama-black grama grassland immediately north of the Deep Well met station. ii. Experimental treatments. WENNDEx manipulates three global change factors (nighttime warming, increased winter precipitation, and N addition) in a fully crossed, completely randomized design. WENNDEx has five replicates of each treatment combination for a total of 40 3.0 x 3.5 m plots. All replicates contain both blue and black grama. Nighttime warming is imposed on the full plot using lightweight aluminum fabric blankets that are drawn across each warmed plot at night to trap outgoing longwave radiation. Dataloggers controlling shelter movements retract the blankets when wind speeds exceed a threshold (to prevent damage) and when rain or snow occurs. Based on long-term climate records, El Nino rains increase average winter precipitation in our area by 50%; more frequent El Nino events are predicted by climate models. From 2006 through 2019 we supplemented winter precipitation each year using an irrigation system and reverse osmosis (RO) water. Rain was added in six experimental events each winter (January-March) to mimic actual El Nino winter-storm event size distribution (four 5 mm events, one 10 mm event, and one 20 mm event each winter) and amount (50 mm). Starting in 2020, the El Nino treatments will only be applied in El Nino years to make them more extreme than ambient. Using a backpack sprayer we add 2 g N m-2 y-1 as NH4NO3 prior to the monsoon season because NH4-N (57%) and NO3-N (43%) contribute approximately equally to N deposition at SNWR. Control plots receive the same amount of RO water. iii. Core measurements. ANPP and plant species composition are measured allometrically in two 1-m2 quadrats per plot, twice yearly. We measure temperature in all plots at two soil depths (5 and 10 cm) and 20 cm aboveground with Campbell Scientific CS107 temperature probes. Soil moisture is measured in each plot using Campbell Scientific CS-616 probes buried at a 45o angle to obtain an integrated measure of moisture in the top 15 cm. Moisture and temperature probes take a reading every 15 minutes. Soil N availability is measured during the monsoon (July - Sept) using Plant Root Simulator probes (WesternAg Industries; Drohan et al. 2005) placed in either blue or black grama patches in each plot. Measurement of soil respiration using Vaisala probes started in 2011 in a subset of treatments (control, warmed, winter rain, and warmed plus winter rain), using the same methods as in EDGE, but with sensors under the canopy of either blue or black grama. On August 4, 2009, a lightning-initiated fire began on the Sevilleta National Wildlife Refuge. By August 5, 2009, the fire had reached WENNDEx, which was burned extensively though not entirely. Approximately 50% of plots burned on August 5 and those plots which did not burn were burned within three weeks by US Fish and Wildlife Service. The vegetation of this site is mixed blue grama - black grama grassland 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):

-106.688

Latitude (degree):

34.359

Sampling Site:

Description:

meanvar_creosote Description: an area dominated by creosote bush (Larrea tridentata), with sparse herbaceous cover. Meteorological data, rodent abundance, bee diversity, plant phenology, prior pitfall trap arthropod monitoring, and plant species cover and biomass are co-located at this site. The Five Points Creosote site is characterized as Chihuahuan Desert Shrubland, dominated by a creosote overstory, with broom snakeweed, purple prickly pear (Opuntia macrocentra), and soapweed yucca as co-occurring shrubs. The site is also characterized by numerous, dense, grass-dominated patches, reflecting proximity to the Five Points Black Grama Site. Common grasses are black grama (Bouteloua eriopoda), fluffgrass (Dasyochloa pulchellum), burrograss (Scleropogon brevifolia), bushmuhly (Muhlenbergia porteri), and galleta grass (Pleuraphis jamesii). Notable forbs include field bahia (Bahia absinthifolia), baby aster (Chaetopappa ericoides), plains hiddenflower (Cryptantha crassisepala), Indian rushpea (Hoffmannseggia glauca), Fendlers bladderpod (Lesquerella fendleri), and globemallow (Sphaeralcea spp.).

Site Coordinates:

Longitude (degree):

-106.7387

Latitude (degree):

34.3383

Sampling Site:

Description:

meanvar_jsav Description: The vegetation is New Mexico juniper savanna, dominated by one-seed juniper (Juniperus monosperma). Understory grass dominants are blue grama (Bouteloua gracilis) and black grama (B. eriopoda) also abundant.

Site Coordinates:

Longitude (degree):

-106.6244

Latitude (degree):

34.2688

Sampling Site:

Description:

meanvar_pj Description: The vegetation is New Mexico piñon-juniper Woodland, dominated by Colorado piñon (Pinus edulis) and one-seed juniper (Juniperus monosperma), and accompanied by gray oak (Quercus grisea). Open spaces between trees are dominated by blue grama (Bouteloua gracilis), with hairy and sideoats grama (B. hirsuta and B. curtipendula) and black grama (B. eriopoda) also abundant.

Site Coordinates:

Longitude (degree):

-106.5237

Latitude (degree):

34.3877

Project

Parent Project Information:

Title:

No project title to report

Personnel:

Individual:

Seth Newsome

Organization:

University of New Mexico

Email Address:

newsome@unm.edu

Id:

https://orcid.org/0000-0002-4534-1242

Role:

Principal Investigator

Funding:

No funding to report

Related Project:

Title:

No project title to report

Personnel:

Individual:

Marcy E Litvak

Organization:

University of New Mexico

Email Address:

mlitvak@unm.edu

Id:

https://orcid.org/0000-0002-4255-2263

Role:

Principal Investigator

Funding:

No funding to report

Related Project:

Title:

No project title to report

Personnel:

Individual:

Esteban H Muldavin

Organization:

University of New Mexico

Email Address:

muldavin@unm.edu

Role:

Principal Investigator

Funding:

No funding to report

Related Project:

Title:

Sevilleta LTER IV: Abiotic Pulses and Constraints: Effects on Dynamics and Stability in an Aridland Ecosystem

Personnel:

Individual:

Scott Collins

Organization:

University of New Mexico

Email Address:

scollins@unm.edu

Id:

https://orcid.org/0000-0002-0193-2892

Role:

Principal Investigator

Funding:

NSF 0217774

Related Project:

Title:

LTERV: Pulse dynamics in an aridland ecosystem

Personnel:

Individual:

Scott Collins

Organization:

University of New Mexico

Email Address:

scollins@unm.edu

Id:

https://orcid.org/0000-0002-0193-2892

Role:

Principal Investigator

Funding:

NSF 1232294

Related Project:

Title:

LTER V: Long Term Pulse Dynamics in an Aridland Ecosystem

Personnel:

Individual:

William Pockman

Organization:

University of New Mexico

Email Address:

pockman@unm.edu

Id:

https://orcid.org/0000-0002-3286-0457

Role:

Principal Investigator

Funding:

NSF 1440478

Related Project:

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

Funding:

NSF 1655499

Related Project:

Title:

EAGER: Collaborative Research: Sevilleta LTER Environmental 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

Funding:

NSF 1748133

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Additional Info

Additional Information:

Personnel:

Joshua Cortez April 2021-present, Alfredo Garcia April 2021-present, Saul Kelly Roman September 2020-present, Timothy Ohlert September 2018-present, Melanie Kazenel September 2018-present, Lauren Baur July 2017-present, Cassandra Miller May 2021, Alesia Hallmark August 2020-September 2020, Melissa Bacigalupa May 2018-September 2020, Ayhan Yener September 2020, Jessica Johnson January 2019-September 2020, Samantha Cafferky April 2019-April 2020, Kelly Lizewski September 2019-April 2020, Nicholas Smith May 2019-October 2019, Nick Dolhyj July 2018-March 2019, Jade McLaughlin July 2018-present, Pablo Cardenas May 2017-April 2021, , Emily McCall July 2017-May 2018, Tracy Ridlinghafer July-2017-July 2018, Nathan Gehres 2014-2017, Chandra Tucker April 2014-2017, Megan McClung April 2013-July 2017, Stephanie Baker October 2010-2016, John Mulhouse August 2009-June 2013, Amaris Swann August 25, 2008-January 2013, Maya Kapoor August 9, 2003-January 21, 2005 and April 2010-March 2011, Terri Koontz February 2000-August 2003 and August 2006-August 2010, Yang Xia January 31, 2005-April 2009, Karen Wetherill February 7, 2000-August 2009, Michell Thomey September 3, 2005-August 2008, Jay McLeod January 2006-August 2006, Charity Hall January 31, 2005-January 3, 2006, Tessa Edelen August 15, 2004-August 15, 2005, Seth Munson September 9, 2002-June 2004, Caleb Hickman September 9, 2002-November 15, 2004, Heather Simpson August 2000-August 2002, Chris Roberts September 2001-August 2002, Mike Friggens 1999-September 2001, Shana Penington February 2000-August 2000.

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        |___text '\n   '

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Data Package Metadata View Summary

SEV-LTER quadrat plant species biomass all sites and experiments

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

Recently Added

Recently Updated

Data Package Metadata View Summary

SEV-LTER quadrat plant species biomass all sites and experiments

+/- 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

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