SGS-LTER Effects of water and nitrogen additions on aboveground biomass in shortgrass ecosystems on the Central Plains Experimental Range, Nunn, Colorado, USA 1997-2011, ARS Study Number 143

Metadata Updated: November 19, 2019

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 ( 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. The objective of this research is to evaluate the long-term response of shortgrass ecosystems to additional water and nitrogen inputs. An experiment was conducted during the IBP project (1970-1975) in which water and nitrogen were applied (Lauenroth et al. 1978, Dodd and Lauenroth 1979, Milchunas and Lauenroth 1995). While we gained an enormous increment in our knowledge about shortgrass ecosystems from this experiment it raised as many questions as it answered. One of the problems was that the treatments were very high levels of nitrogen (100-150kg/ha N) and water (600 mm/growing season) additions. Additional information and referenced materials can be found:

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons CCZero

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Metadata Created Date March 29, 2018
Metadata Updated Date November 19, 2019

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date March 29, 2018
Metadata Updated Date November 19, 2019
Publisher USDA NAL
Unique Identifier knb-lter-sgs.542.1
Lauenroth, William
Maintainer Email
Public Access Level public
Bureau Code 005:18
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id bc55a03c-1fd0-4494-b417-470e7bf0c794
Harvest Source Id 50ca39af-9ddb-466d-8cf3-84d67a204346
Harvest Source Title USDA JSON
Data Last Modified 2019-08-05
Program Code 005:040
Source Datajson Identifier True
Source Hash 78f7bcc8c9bbf66f2c52235316f5778b91311e3e
Source Schema Version 1.1
Spatial POLYGON ((-104.785833 40.8575, -104.730556 40.8575, -104.730556 40.800278, -104.785833 40.800278))

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