Show TREES PLANTED TO PREVENT EROSION approximately trees and shrubs were furnished by the soil an service to coopers hg in the great divide soil ero won srm district during the past year these trees were planted mostly as windbreaks on the contour although some were planted in eroding gullies windbreaks aid in conserving moisture for crops by trapping the winter snows on the fields where there are no trees most of the snow is blown off the cultivated fields into adjacent highways or sage brush lands the tree planting will be continued in 1940 |