Page 15 - Soil Degradation, Conservation and Remediation
P. 15

xiv                                                     Abbreviations


              UNESCO      United Nations Educational, Scientific and Cultural Organization
              USA       United States of America
              USDA      United States Department of Agriculture
              USLE      Universal Soil Loss Equation
              VC        Vinyl chloride
              WHO       World Health Organization
              WRB       World Reference Base
   10   11   12   13   14   15   16   17   18   19   20