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Description

This data set records the productivity of a semiarid shortgrass prairie steppe located in the Central Plains Experimental Reserve (CPER)/Pawnee National Grassland in north-central Colorado. There are nine data files (.txt). Four files contain measurements of monthly dynamics of harvested above-ground plant biomass, one file each for untreated, irrigated, fertilized, and irrigated + fertilized plots for the period 1970 to 1975. The fifth file contains annual above-ground NPP estimates for the untreated plot for the period 1970-1974. The sixth file contains long-term ANPP estimated from field harvest measurements made between 1970 and 1990 and by correlation with forage production measurements made between 1939 and 1990. Two additional files provide estimates of above- and below-ground NPP based on peak growing season harvests; one record covers 1970-1972 from the Pawnee site and the other covers 1985-1988 from CPER. The ninth file contains climate data for 1912-1990 from a weather station located at CPER.Revision Notes: This data set has been revised to correct the study site elevation, extend the temporal coverage, and add four data files containing estimates of NPP. Please see the Data Set Revisions section of this document for detailed information.

Product Summary

Platforms
FIELD INVESTIGATION
Instruments
QUADRATS ,
BALANCE ,
CORING DEVICES
Spatial Extent

N: 40.82 S: 40.82 E: -104.77 W: -104.77

Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1912-01-01 to 1990-12-31
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2751936709-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
9
Processing Level
3
Published
Updated
Science Keywords
Biomass Dynamics ,
Primary Production ,
Biomass

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Uresk, D., Sims, P. L., & Dodd, J. L. (2015). NPP Grassland: Central Plains Experimental Range (SGS), USA, 1939-1990, R1 (Version 2). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/145 Date Accessed: 2026-05-11

Documents

USER'S GUIDE

GENERAL DOCUMENTATION

Publications Citing This Dataset

Filters
Title Year Author Topic
Cowcalf reproductive, genetic, and nutritional management to improve the sustainability of whole beef production systems White, R. R., Brady, M., Capper, J. L., McNamara, J. P., Johnson, K. A. Biomass Dynamics, Primary Production, Biomass, Forest Composition/Vegetation Structure
Comparative Assessment of Grassland NPP Dynamics in Response to Climate Change in China, North America, Europe and Australia from 1981 to 2010 Gang, C., Zhou, W., Wang, Z., Chen, Y., Li, J., Chen, J., Qi, J., Odeh, I., Groisman, P. Y. Biomass Dynamics, Primary Production, Biomass, Forest Composition/Vegetation Structure
Ecosystem Responses to Warming and Interacting Global Change Factors Norby, Richard J., Rustad, Lindsey E., Dukes, Jeffrey S., Ojima, Dennis S., Parton, William J., Del Grosso, Stephen J., McMurtrie, Ross E., Pepper, David A. Biomass Dynamics, Primary Production, Biomass
Estimating net primary productivity from grassland biomass dynamics measurements Scurlock, J. M. O., Johnson, K., Olson, R. J. Biomass Dynamics, Primary Production, Biomass
Terrestrial net primary productivity A brief history and a new worldwide database Scurlock, J MO, Olson, R J Biomass Dynamics, Primary Production, Biomass, Forest Composition/Vegetation Structure
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