Rate of Soil Formation and Renewal in the USA
- G. F. Hall,
- R. B. Daniels and
- J. E. Foss1
During the last 100 to 200 years man has greatly accelerated erosion on many agricultural fields. One result of this erosion has been the loss of an appreciable part of the rooting zone in soils having restrictive subsurface horizons. We believe that we should emphasize the maintenance of a favorable rooting zone. Obviously in soils shallow to rock or with other limiting layers that are not modified quickly, the erosion rate that is permissible should be lower than that in soils without restrictive horizons or layers. If we place emphasis on how rapidly we can develop a favorable rooting zone, we may be able to keep pace with the natural events that will take place on our landscapes in the next 2,000 to 5,000 years.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1982. . Copyright 1982 by the American Society of Agronomy and Soil Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA