. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station . Fig. 8.—Square-meter quadrat in the 30-acre pasture, showing the relationship of Bou- teloua and Stipa. Charted near the close of the grazing season in 1916. Bouteloua gracilis is indicated by B and Stipa comata by S. blue grama. It is a shorter lived perennial and is more dependent upon reseeding. Western needle grass is the species that is bene- fited most by the system of deferred and rotation grazing. € ISOLATION TRANSECTS. Areas that are now known as " iso
. Effects of different systems and intensities of grazing upon the native vegetation at the Northern Great Plains Field Station . Fig. 8.—Square-meter quadrat in the 30-acre pasture, showing the relationship of Bou- teloua and Stipa. Charted near the close of the grazing season in 1916. Bouteloua gracilis is indicated by B and Stipa comata by S. blue grama. It is a shorter lived perennial and is more dependent upon reseeding. Western needle grass is the species that is bene- fited most by the system of deferred and rotation grazing. € ISOLATION TRANSECTS. Areas that are now known as " isolation transects"18 were set aside in the 100-acre and the 30-acre pastures in 1915. A similar area 18 Dr. H. L. Shantz suggested these areas when he visited the station in 1915. Their designation as isolation transect? was suggested by Dr. F. E. Clements when he visited the station in 1917.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforagep, bookyear1923
