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Climatic Effects on Buffelgrass Productivity in the Sonoran Desert

Martha H. Martin-R, Jerry R. Cox and Fernando Ibarra-F
Journal of Range Management
Vol. 48, No. 1 (Jan., 1995), pp. 60-63
DOI: 10.2307/4002505
Stable URL: http://www.jstor.org/stable/4002505
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Climatic Effects on Buffelgrass Productivity in the Sonoran Desert
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Abstract

Buffelgrass (Cenchrus cilaris L.), a perennial bunchgrass from northcentral Kenya has been successfully seeded on 400,000 ha in northwest Mexico. To determine if carrying capacity increased after buffelgrass introduction we measured live, recent-dead standing, old-dead standing and litter at 2-week intervals for three years. Live biomass was produced throughout the year but peak production, over the 3 years was in August. Peak live biomass production varied from 465 kg/ha in a summer of below-average precipitation to 3,045 kg/ha in a summer of above-average precipitation. Recent- and old-dead standing quantities were highly variable among years and transfers among components were dependent on temperature and precipitation. Buffelgrass annually produces about 3 times more green forage than native grasses.

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