Important areas of agricultural land were abandoned during the Great Depression and incorporated into the nascent national forests. Later, the restrictions of "Sodbuster" and "Swampbuster" were written down in the federal programs of the farms from the year 1970 reversing decades with a tendency to destroy them, which began in 1942 when the farmers he urged them to plant the land as much as possible in support of the war effort. In the United States, federal programs administer through the local Department of Soil and Water Conservation of the District that provide technical assistance and partial funding to farmers who wish to apply management practices to conserve soil and limit erosion.
