SGS-LTER Effects of grazing on ecosystem structure and function (GZTX): Bite Counts on the Central Plains Experimental Range, Nunn, Colorado, USA 1993-2008, ARS Study Number 32

This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. When the CPER was established in 1939, researchers constructed a .5-1 ha grazing exclosure in each of the pastures. These areas have remained protected from grazing for the past 70 years. The remaining areas have been grazed for the past 20+ years. This collection of pastures and exclosures provided an extraordinary opportunity to reinitiate grazing and protection, and evaluate the balance between degradation and aggradation. We proposed to rearrange fences and expose areas to grazing that have been protected for 50 years, and protect areas from grazing that had been grazed for 50 years. The combinations of grazing conditions were: 1. Long-term protection 2. Long-term grazing (moderate) 3. 50 years of protection followed by grazing 4. 50 years of grazing followed by protection Net primary production, nitrogen dynamics, cattle utilization, and community dynamics of vegetation were measured. Additional information and referenced materials can be found: http://hdl.handle.net/10217/85596. Resources in this dataset:Resource Title: Website Pointer to html file. File Name: Web Page, url: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=528 Webpage with information and links to data files for download

Data and Resources

Field Value
accessLevel public
bureauCode {005:18}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 10.6073/pasta/760df74dede0e999bcf6a282df453c28
license https://creativecommons.org/licenses/by/4.0/
modified 2023-11-30
old-spatial {"type": "Polygon", "coordinates": [[[-104.785833, 40.8575], [-104.730556, 40.8575], [-104.730556, 40.800278], [-104.785833, 40.800278], [-104.785833, 40.8575]]]}
programCode {005:040}
publisher Agricultural Research Service
resource-type Dataset
source_datajson_identifier true
source_hash 12fc15395db41867d637d3fdfbd9065f5782bcb3dd440e7eef626fe54746dcd9
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-104.785833, 40.8575], [-104.730556, 40.8575], [-104.730556, 40.800278], [-104.785833, 40.800278], [-104.785833, 40.8575]]]}
temporal 1993-07-01/2008-09-01
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • ars
  • data-gov
  • disturbance
  • np215
  • nsf-lterlong-term-ecological-research
  • plant-animal-interactions
  • plants
  • populations
  • usda-ars-natural-resources-and-sustainable-agricultural-systems-national-program-215-pasture-fo
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
maintainer Milchunas, Daniel
maintainer_email daniel.milchunas@colostate.edu
metadata_created 2025-09-24T17:07:31.839249
metadata_modified 2025-09-24T17:07:31.839259
notes <p>This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (<a href="http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429">http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429</a>). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. When the CPER was established in 1939, researchers constructed a .5-1 ha grazing exclosure in each of the pastures. These areas have remained protected from grazing for the past 70 years. The remaining areas have been grazed for the past 20+ years. This collection of pastures and exclosures provided an extraordinary opportunity to reinitiate grazing and protection, and evaluate the balance between degradation and aggradation. We proposed to rearrange fences and expose areas to grazing that have been protected for 50 years, and protect areas from grazing that had been grazed for 50 years. The combinations of grazing conditions were: 1. Long-term protection 2. Long-term grazing (moderate) 3. 50 years of protection followed by grazing 4. 50 years of grazing followed by protection Net primary production, nitrogen dynamics, cattle utilization, and community dynamics of vegetation were measured. Additional information and referenced materials can be found: <a href="http://hdl.handle.net/10217/85596">http://hdl.handle.net/10217/85596</a>. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=528">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=528</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>
num_resources 1
num_tags 17
title SGS-LTER Effects of grazing on ecosystem structure and function (GZTX): Bite Counts on the Central Plains Experimental Range, Nunn, Colorado, USA 1993-2008, ARS Study Number 32