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SGS-LTER long term nitrogen concentration in LTNPP monitoring on the Central Plains Experimental Range, Nunn, Colorado, USA 1983-2011, ARS study number 6

dc.contributor.authorMilchunas, Daniel G.
dc.coverage.temporal1983-2011
dc.date.accessioned2007-01-03T06:24:16Z
dc.date.available2007-01-03T06:24:16Z
dc.date.issued1983-2011
dc.descriptionNatural Resource Ecology Laboratory (NREL)
dc.descriptionShortgrass Steppe-Long Term Ecological Research (SGS-LTER)
dc.description.abstractThis 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 Repository (http://hdl.handle.net/10217/100254). 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. Aboveground plant nitrogen dynamics monitoring consists of two separate data sets. a) Long-term peak-crop nitrogen concentrations have been sampled since 1983 annually from sites sampled for ANPP estimates across the CPER. Plots are clipped for ANPP in August each year and include moderately grazed sites in sections 24 and 25, ungrazed treatments at ESA and owl creek, coarse textured soils in owl creek, fine textured soils in section 25, as well as three catena topopositions in section 24. These datasets have been designed for monitoring and so it is advised to consider calculating average based at the transect level. B) Seasonal dynamics of life-form (dominant grass, forb, shrub species) nitrogen concentrations were obtained from random grab samples of aboveground plant tissue are taken monthly from May-Aug. and in Oct., Dec., Feb., and April from 1983 – 2007 at sites where ANPP has been collected since 1983 (ESA, ridge, mid-slope and swale in section 24). The objectives are to assess annual/seasonal weather and site productivity/management with quantity and quality of forage and/or litter production. Combined, these two data sets also provide an estimate of nitrogen yield. These data can be linked with secondary producer data sets such as annual cattle weight gains, grasshopper abundance, small mammal monitoring, etc., to assess how forage/plant tissue quantity and quality drive population dynamics.
dc.description.sponsorshipNSF Grant Number DEB-1027319.
dc.format.mediumZIP
dc.format.mediumPDF
dc.format.mediumTXT
dc.format.mediumXML
dc.identifier.urihttp://hdl.handle.net/10217/83462
dc.identifier.urihttp://dx.doi.org/10.25675/10217/83462
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.haspartMilchunas, Daniel (2013): SGS-LTER Long Term Nitrogen Percentages in Grass, Forb and Shrub Species on the Central Plains Experimental Range, Nunn, Colorado, USA 1983 - 2008, ARS Stusy Number 6. Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/2a3730996484091b934b733fc5922eb6
dc.relation.haspartMilchunas, Daniel (2013): SGS-LTER Long Term Nitrogen Concentration in LTNPP Monitoring on the Central Plains Experimental Range, Nunn, Colorado, USA 1987 - 2011, ARS Study Number 6. Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/5ac0c534d97c80e19ab19e90f751b4c0
dc.relation.ispartofResearch Data
dc.relation.referencesSpecies list of plants. http://hdl.handle.net/10217/80451
dc.relation.referencesKaplan, Nicole, SGS-LTER GIS layer with detailed information on study sites on Central Plains Experimental Range, Nunn, Colorado, USA 2012 (dataset). http://hdl.handle.net/10217/87177
dc.rightsData sets were provided by the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Program, a partnership between Colorado State University, United States Department of Agriculture, Agricultural Research Service, and the U.S. Forest Service Pawnee National Grassland. Significant funding for these data was provided by the National Science Foundation Long Term Ecological Research program (NSF Grant Number DEB-1027319). The SGS-LTER project (1980-2014) was established as one of the first sites in the US LTER Network and has produce a rich legacy of digital materials including reports, proposals, images, and data packages. Data, products and other information produced from the SGS-LTER are curated as a collection within the Repository (http://hdl.handle.net/10217/100254). Materials can be accessed from the Institutional Digital Repository of Colorado State University or upon request by emailing ecodata_nrel@colostate.edu. All data are open for dissemination and re-use for any purpose, but you must attribute credit to the owner and cite use appropriately according to the LTER Data Access Policy (http://www.lternet.edu/policies/data-access).
dc.subjectorganic nitrogen
dc.subjectnitrogen
dc.subjectorganic matter
dc.subjectlandscape
dc.subjectcatena
dc.titleSGS-LTER long term nitrogen concentration in LTNPP monitoring on the Central Plains Experimental Range, Nunn, Colorado, USA 1983-2011, ARS study number 6
dc.typeDataset

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LTN
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SGS_LTER_Nitrogen_ltnppn.txt
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LTNPPN
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SGS-LTER Nitrogen
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Nitrogen - dataset