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Plant aboveground biomass data: BAC: Biodiversity and Climate

General Information
Data Package:
Local Identifier:edi.901.1
Title:Plant aboveground biomass data: BAC: Biodiversity and Climate
Alternate Identifier:knb-lter-cdr.386.8
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Climate changes forecast for our region by GCM???s and shifts in biodiversity and composition each have the potential to alter ecosystem functioning; their interactive effects are unknown. The "BAC" experiment is designed to determine the direct and interactive effects of plant species numbers, plant community composition, temperature, and precipitation on 11 productivity, C and N dynamics, stability, and plant, microbe, and insect species abundances in CDR grassland ecosystems.

Short Name:ple249
Publication Date:2022-05-18
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2007
End:
2015

People and Organizations
Contact:Bahauddin, Dan (Cedar Creek Ecosystem Science Reserve, Information Manager) [  email ]
Creator:Tilman, David 

Data Entities
Data Table Name:
e249_Plant aboveground biomass data
Description:
Plant aboveground biomass data: BAC: Biodiversity and Climate
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/901/1/34db2945b271c1a142d73fec2e298917
Name:e249_Plant aboveground biomass data
Description:Plant aboveground biomass data: BAC: Biodiversity and Climate
Number of Records:11864
Number of Columns:6

Table Structure
Object Name:e249_Plant aboveground biomass data.txt
Size:11864 rows
Character Encoding:ASCCII
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:\t

Table Column Descriptions
 
Column Name:Year  
Sample Date  
Plot  
Heat Treatment  
Species  
Mass (g/m2)  
Definition:yearSample DatePlot IdentifierHeat TreatmentSpeciesMass (g/m2)
Storage Type:            
Measurement Type:dateTimedateTimenominalnominalnominalratio
Measurement Values Domain:
FormatYYYY
Precision
FormatMM/DD/YYYY
Precision
DefinitionPlot Identifier
DefinitionHeat Treatment
DefinitionSpecies
UnitgramsPerSquareMeter
Typereal
Missing Value Code:            
Accuracy Report:            
Accuracy Assessment:            
Coverage:            
Methods:            

Data Package Usage Rights

Intellectual Rights for Cedar Creek LTER data

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

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  • The licensor cannot revoke these freedoms as long as you follow the license terms.
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  • Notice - You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
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Keywords

By Thesaurus:
(No thesaurus)ecosystem ecology, grasslands, plant growth, plant species composition, plants, species

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:

  • Experiment Design 
  • The BAC experiment uses a subset of 38 plots from the Biodiversity II (e120) experiment which began in 1994. See: Tilman et al. (2001) Diversity and productivity in a long-term grassland experiment. Science 294, 843?845. doi:10.1126/science.1060391   Biodiversity II is contained within a block of 342 plots laid out in a grid. Each plot was established as a 13 m x 13 m square, but only the central 9 m x 9 m is actively maintained to contain the specified species and level of plant diversity. 

BAC plots consist of fourteen monoculture plots, nine plots planted to 4 species, nine plots planted to 16 species and six plots planted to 32 species. Plant species are from 4 different functional groups (4 species, each, of C3 grasses, C4 grasses, legumes and non-legume forbs) that are likely to respond differently to changes in temperature and water availability. The diversity by warming treatments are a fully factorial split-plot design, with each of high, low, and control heat treatment subplots nested within each of 1, 4, 16 and 32 species diversity treatment whole-plots.

Description:

  • Warming Treatments 
  • Warming treatments are applied to 2.5 x 3 m subplots via infrared lamps (Kalglo Electronics,
Bethlehem, PA, USA). The three warming treatments are control (metal shade above plot to simulate shading effects of lamps), low heat (600 W lamp), and high heat (1200 W lamp). Pre-experiment bare-ground trials of the infrared lamps indicated that the low heat treatment would approximately warm the soil by +1.5C while the high heat treatment would exhibit an approximate warming of +3C. Lamps are turned on from March to November.

Description:

  • Heat Lamps 
  • Kalglo Electronics, Bethlehem, PA, USA

High Intensity: Model MRM-2412  240V w/ mod ref 1200W  5.0A  50/60Hz  1Ph  30’ cord
Ser.#: 20071771

Low Intensity: Model MRM-2406  240V w/ mod ref 600W  2.5A  50/60Hz  1Ph  50’ cord
Ser.#: 20071651

Description:

  • Diversity Treatments 
  • The diversity levels are maintained via hand weeding multiple times each growing season from scaffolding above the plots to avoid trampling. Plots are burned annually to mimic the natural fire regime of the prairie. Because of this, fall biomass harvests are good indicators of seasonal net primary productivity.

Description:

  • Abstract 
  • Climate changes forecast for our region by GCM???s and shifts in biodiversity and composition each have the potential to alter ecosystem functioning; their interactive effects are unknown. The "BAC" experiment is designed to determine the direct and interactive effects of plant species numbers, plant community composition, temperature, and precipitation on 11 productivity, C and N dynamics, stability, and plant, microbe, and insect species abundances in CDR grassland ecosystems.

Description:

  • Plant aboveground biomass 
  • Aboveground biomass was sampled in 0.1 meter wide clip strips in early August. The clipped biomass was sorted to species, dried, and weighed.

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@environmentaldatainitiative.org
Web Address:
https://environmentaldatainitiative.org
Id:https://ror.org/0330j0z60
Creators:
Individual: David Tilman
Id:http://orcid.org/0000-0001-6395-7676
Contacts:
Individual: Dan Bahauddin
Organization:Cedar Creek Ecosystem Science Reserve
Position:Information Manager
Address:
Ecology Evolution and Behaviour Dept. University Of Minnesota,
100 Ecology Building,
1987 Upper Buford Circle,
Saint Paul, MN 55108 USA
Phone:
612-625-5740 (voice)
Phone:
612-624-6777 (fax)
Email Address:
webmaster@cedarcreek.umn.edu
Metadata Providers:
Organization:Cedar Creek LTER
Address:
Cedar Creek Ecosystem Science Reserve,
100 Ecology Building,
1987 Upper Buford Circle,
Saint Paul, MN 55108 USA
Phone:
612-625-5740 (voice)
Phone:
612-624-6777 (fax)
Email Address:
webmaster@cedarcreek.umn.edu
Web Address:
http://www.cedarcreek.umn.edu/

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2007
End:
2015
Geographic Region:
Description: The Cedar Creek Ecosystem Science Reserve is located in Anoka and Isanti counties, approximately 30 miles north of Saint Paul, MN. CCNHA lies at the boundary between prairie and forest. It is a mosaic of uplands dominated by oak savanna, prairie, hardwood forest, pine forests,and abandoned agricultural fields and of lowlands comprised of ash and cedar swamps, acid bogs, marshes, and sedge meadows. Large tracts of the pre-agricultural ecosystems of the region are preserved within its boundaries, as is a successional chronosequence of more than 80 old fields of known history.
Bounding Coordinates:
Northern:  45.44138Southern:  45.384865
Western:  -93.22445Eastern:  -93.16289

Project

Other Metadata

Additional Metadata

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