Summary Information
Extreme Drought in Grassland Ecosystems (EDGE) Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico (2013- present)
Creator:
Individual: Scott Collins
Organization: SEV LTER
Physical Address:
Delivery Address: Department of Biology, MSC03 2020, 1 University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131
Email: scollins@sevilleta.unm.edu
System ID: 12275
Associated Party:
Individual: Douglas I. Moore
Organization: SEV LTER
Physical Address:
Delivery Address: Sevilleta LTER, 167 Castetter Hall, University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131
Email: dmoore@sevilleta.unm.edu
System ID: 9661
Role: data manager
Publication Date: 2015
Language: english
Abstract:
Net primary production is a fundamental ecological variable that quantifies rates of carbon consumption and fixation. Estimates of NPP are important in understanding energy flow at a community level as well as spatial and temporal responses to a range of ecological processes.  While measures of both below- and above-ground biomass are important in estimating total NPP, this study focuses on above-ground net primary production (ANPP). Above-ground net primary production is the change in plant biomass, including loss to death and decomposition, over a given period of time. Volumetric measurements are made using vegetation data from permanent plots collected in SEV297, "Extreme Drought in Grassland Ecosystems (EDGE) Net Primary Production Quadrat Data" and regressions correlating biomass and volume constructed using seasonal harvest weights from SEV157, "Net Primary Productivity (NPP) Weight Data."
Keywords:
Keyword: primary production
Keyword Thesaurus: Core Areas
Keywords:
Keyword: plant species
Keyword: biology
Keyword: ecology
Keyword: plant ecology
Keyword: measurements
Keyword: productivity
Keyword: net primary productivity
Keyword: annual net primary production
Keyword: biomass
Keyword: aboveground biomass
Keyword: species composition
Keyword: ecosystems
Keyword: deserts
Keyword: grasslands
Keyword Thesaurus: LTER Controlled Vocabulary
Additional Information:
The bounding box coordinates for the corners of the polygon which encompasses the full EDGE black site are: NW: -106.729227  34.337913 Decimal DegreesNE: -106.728434  34.337937 Decimal DegreesSW: -106.729144  34.337298 Decimal DegreesSE: -106.728392  34.337310 Decimal Degrees EDGE blue: NW: -106.622610  34.342141 Decimal DegreesNE: -106.621689  34.342079 Decimal DegreesSW: -106.623365  34.341518 Decimal Degrees SE: -106.622711  34.341015 Decimal Degrees
Intellectual Rights:
Data Policies
This dataset is released to the public and may be freely downloaded. Please keep the designated Contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement of the Sevilleta LTER. Datasets must be cited as in the example below. Muldavin, E. 2004. Sevilleta LTER Fertilizer NPP Study Dataset. Albuquerque, NM: Sevilleta Long Term Ecological Research Site Database: SEV155. (Date of download) A copy of any publications using these data must be supplied to the Sevilleta LTER Information Manager.
Distribution:
Online:
URL: http://sev.lternet.edu/node/7712
Coverage:
Geographic Goverage:
Geographic Description: Location: The EDGE Black Grama site is located within Five Points Black Grama, just to the west of Black Grama Core site. Vegetation: The EDGE black grama site is dominated by black grama (Bouteloua eriopoda). Other prevalent grasses include Sporobolus contractus, S. cryptandrus, S. flexuosus, and Muhlenbergia arenicola.,
Bounding Coordinates:
West Bounding Coordinates: -106.728392
East Bounding Coordinates: -106.728392
North Bounding Coordinates: 34.33731
South Bounding Coordinates: 34.33731
Geographic Goverage:
Geographic Description: Location: The EDGE Blue Grama site is located on far east side of refuge approximately .5 km due west from the foothills of the Los Pinos Mountains.  The study is also just northeast of the Blue Grama Core site.  Soils: Sandy loam and sandy clay loam, Vegetation: Vegetation is characterized as Plains-Mesa Grassland, dominated by blue and black grama (Bouteloua gracilis and B. eriopoda) and sand muhly (Muhlenbergia arenicola).,
Bounding Coordinates:
West Bounding Coordinates: -106.62261
East Bounding Coordinates: -106.62261
North Bounding Coordinates: 34.342141
South Bounding Coordinates: 34.342141
Temporal Coverage:
Date Range:
Begin Date:
Calendar Date: 2013-01-01
End Date:
Calendar Date: 2015-08-18
Contact:
Position Title: Information Manager
Organization: LTER Network Office
Physical Address:
Delivery Address: UNM Biology Department, MSC03-2020
Delivery Address: 1 University of New Mexico
City: Albuquerque
Locality: NM
Postal Code: 87131-0001
Phone: USA
Phone: 505 277-2535
Phone: 505 277-2541
Email: tech-support@lternet.edu
URL: http://www.lternet.edu
Contact:
Individual: Sevilleta Information Manager
Organization: SEV LTER
Email: data-use@sevilleta.unm.edu
Publication Place: Sevilleta LTER
Method Step:
Description:
Derivation of Biomass and Net primary Production:Data from SEV297 and SEV157 are used to calculate the seasonal and annual production (i.e., biomass) 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.Seasonal net primary production (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.
Data Table:
Entity Name: sev298_edgebiomass_20150818.txt
Entity Description: Data for SEV298
Object Name: sev298_edgebiomass_20150818.txt
Data Format:
Text Format:
Number of Header Lines: 1
Record Delimiter: \r\n
Attribute Orientation: column
Simple Delimited:
Field Delimiter: ,
Distribution:
Online:
URL: https://pasta.lternet.edu/package/data/eml/knb-lter-sev/298/209675/5eeffcdaad653da8a47ade4a96bf3883
Coverage:
Temporal Coverage:
Date Range:
Begin Date:
Calendar Date: 2013-01-01
End Date:
Calendar Date: 2015-08-18
Attribute List:
Attribute Name: year
Attribute Label: year
Attribute Definition: The year in which data was collected.
Storage Type: date
Measurement Scale:
Datetime:
Format String: YYYY
Attribute Name: site
Attribute Label: site
Attribute Definition: The site at which data was collected.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: The site at which data was collected.
Attribute Name: treatment
Attribute Label: treatment
Attribute Definition: Edge study treatments
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: Edge study treatments
Attribute Name: block
Attribute Label: block
Attribute Definition: Replicates of sets of treatments.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: Replicates of sets of treatments.
Attribute Name: plot
Attribute Label: plot
Attribute Definition: The plot at which data was collected.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: The plot at which data was collected.
Attribute Name: quad
Attribute Label: quad
Attribute Definition: The quadrat at which data was collected.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: The quadrat at which data was collected.
Attribute Name: species
Attribute Label: species
Attribute Definition: The Kartez code for a plant species as designated by the USDA Plants Database.
Storage Type: string
Measurement Scale:
Nominal:
Non Numeric Domain:
Text Domain:
Definition: The Kartez code for a plant species as designated by the USDA Plants Database.
Attribute Name: wwt
Attribute Label: wwt
Attribute Definition: The calculated weight of live green biomass for a species in a quadrat in the winter.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real
Attribute Name: swt
Attribute Label: swt
Attribute Definition: The calculated weight of live green biomass for a species in a quadrat in the spring.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real
Attribute Name: fwt
Attribute Label: fwt
Attribute Definition: The calculated weight of live green biomass for a species in a quadrat in the fall.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real
Attribute Name: snpp
Attribute Label: snpp
Attribute Definition: The calculated primary production of a species in a quadrat in the spring.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real
Attribute Name: fnpp
Attribute Label: fnpp
Attribute Definition: The calculated primary production of a species in a quadrat in the fall.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real
Attribute Name: anpp
Attribute Label: anpp
Attribute Definition: The calculated annual primary production of a species in a quadrat.
Measurement Scale:
Ratio:
Unit:
Standard Unit: gramsPerSquareMeter
Precision: 0.01
Numeric Domain:
Number Type: real