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 language | English (US) |
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Pages (from-to) | 434-437 |
Number of pages | 4 |
Journal | Journal of Range Management |
Volume | 44 |
Issue number | 5 |
DOIs | |
State | Published - 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- Ecology
- Animal Science and Zoology