Woody and herbaceous aboveground production of a Patagonian steppe

R. J. Fernandez-A., O. E. Sala, R. A. Golluscio

Research output: Contribution to journalArticle

76 Scopus citations

Abstract

Aboveground net primary production (ANPP) of steppe in SW Chubut (Argentina) was estimated, yielding a value of 79 g of dry matter (DM) m-2 yr-1 (SE 19 g DM m-2 yr-1) for an annual rainfall of 191 mm. Two thirds of production were accounted for by perennial grasses and one third by shrubs. There was a large reduction in ANPP during a year of extreme drought; however, there were no increases in ANPP during years with above-average precipitation, suggesting that the carrying capacity for the Patagonian steppe may not be linearly related to precipitation. -from Authors

Original languageEnglish (US)
Pages (from-to)434-437
Number of pages4
JournalJournal of Range Management
Volume44
Issue number5
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology

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