Abstract
Eighteen years of herbage yields of range grasses and concomitant precipitation and temperature fluctuations were examined with correlation and regression techniques. Antecedent precipitation was the dominant factor influencing yield of perennial herbaceous species, while both temperature and precipitation were important for prediction of yield of downy bromegrass, a winter annual. Total yield of the herbaceous community was closely correlated with precipitation received during the September to June period (r = 0.92); however, September to March precipitation was also highly correlated (r = 0.89). These correlations provide timely and useful estimates of native range production on eastern Oregon ranges. Sixty to 92% of yield variation was accounted for by the regression models for 9 of the 12 species or species groups examined.
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Sneva, F.A. Relation of precipitation and temperature with yield of herbaceous plants in eastern Oregon. Int J Biometeorol 26, 263–276 (1982). https://doi.org/10.1007/BF02219493
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DOI: https://doi.org/10.1007/BF02219493