. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station . Fig. 2.—Same Area Shown in Figure I, Photographed in October, 1921 At this time it was estimated that per cent of the foliage cover had been removed by grazing.


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforagep, bookyear1923