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. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station . Fig. I.—View across the Quadrat Area in the I00-Acre Pasture. July 15, 1921. At this time it was estimate'! that 15 per cent of the foliage cover had been removed by grazing.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforagep, bookyear1923