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oai:mercury-ops2.ornl.gov:ornldaac_574 2017-01-20T09:44:55Z ORNLDAAC

NPP_RMY NPP Grassland: Rio Mayo, Argentina, 1972-1997, R1 SALA, O.E.; JOBBAGY, E.G. NPP Grassland: Rio Mayo, Argentina, 1972-1997, R1 2015 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/574 574

ABSTRACT: This data set contains three data files in text format (.txt) for a temperate dry steppe at Rio Mayo, Argentia. One file contains quarterly above-ground biomass data for grasses on the steepe (May 1984-May 1985). The second file contains average annual above-ground primary production (ANPP) data for grasses and shrubs for years 1972-1997 based upon peak above-ground biomass estimates. The third file contains precipitation and maximum/minimum temperature data for the Rio Mayo site for the period 1968 through 1990. Rio Mayo is located in the Patagonia region of Argentina. The vegetation is chiefly composed of grasses and shrubs. Harvest methods were used to estimate grass and shrub production. Between 1972 and 1997, peak annual ANPP of grasses plus shrubs ranged from 21 to 75 g/m2/yr, with an average of about 60 g/m2/yr. Grasses accounted for about two-thirds of the productivity. ANPP was reduced in a drought year, but did not increase in relatively wet years, suggesting that it may not be linearly related to precipitation. ANPP for 1984-1985 was slightly higher (79 g/m2/yr) when a different algorithm was used for estimation. Revision Notes: The original npp data file (rmy_npp.txt) has been split into two files, one file containing seasonal biomass and the other containing annual ANPP estimates. The data file containing annual ANPP estimates has been revised to extend temporage coverage and add additional annual ANPP data. See the Revisions section in this document for details.

1968-01-01 1997-01-01 COMPLETE -45.68 -45.68 -70.27 -70.27 ESIP Earth Science Information Partners Program EOSDIS Earth Observing System Data Information System TECHNICAL CONTACT ORNL DAAC User Services ORNL DAAC USER SERVICES OFFICE OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 USA DIF AUTHOR ORNL DAAC User Services ornldaac@ornl.gov (865) 241-3952 (865) 574-4665

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Oak Ridge Tennessee 37831-6407 USA 2015-05-26 ORNL_DAAC THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) http://daac.ornl.gov/ 574 DATA CENTER CONTACT ORNL DAAC USER SERVICES ornldaac@ornl.gov +1(865)241-3952 +1(865)574-4665

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS EARTH SCIENCE BIOSPHERE VEGETATION BIOMASS QUADRATS FIELD INVESTIGATION EARTH SCIENCE CORING DEVICES FIELD INVESTIGATION EARTH SCIENCE STEEL MEASURING TAPE FIELD INVESTIGATION EARTH SCIENCE BALANCE FIELD INVESTIGATION EARTH SCIENCE NPP EOSDIS GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=574 VIEW RELATED INFORMATION https://daac.ornl.gov//NPP/guides/NPP_RMY.html NPP Grassland: Rio Mayo, Argentina, 1972-1997, R1 USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0