Classification and Mapping of Agricultural Land for National Water-Quality Assessment

By Robert J. Gilliom and Gail P. Thelin

U.S. Geological Survey Circular 1131

Table 1. Anderson land-use and land-cover classification system for use with remote sensor data.
[Data from Anderson and others, 1976]

-------------------------------------------------------------------------------
   Level I                  Level II
-------------------------------------------------------------------------------
1. Urban or build-up land    11. Residential.                     
                             12. Commercial and services.         
                             13. Industrial.                      
                             14. Transportation, communications, and utilities.           
                             15. Industrial and commercial complexes.                     
                             16. Mixed urban or built-up land.    
                             17. Other urban or built-up land.    
                                                                                
2. Agricultural land         21. Cropland and pasture.            
                             22. Orchards, groves, vineyards, nurseries, and ornamental 
                                   horticultural areas.               
                             23. Confined feeding operations.     
                             24. Other agricultural land.         
                        
3. Rangeland                 31. Herbaceous rangeland.            
                             32. Shrub and brush rangeland.       
                             33. Mixed rangeland.                                         
                        
4. Forest land               41. Deciduous forest land.           
                             42. Evergreen forest land.                                   
                             43. Mixed forest land.               
                        
5. Water                     51. Streams and canals.              
                             52. Lakes.                           
                             53. Reservoirs.                      
                             54. Bays and estuaries.              
                        
6. Wetland                   61. Forested and wetland.            
                             62. Nonforested wetland.             
                        
7. Barren land               71. Dry salt flats.                  
                             72. Beaches.                         
                             73. Sandy area other than beaches.   
                             74. Bare exposed rock.               
                             75. Strip mines, quarries, and gravel pits.                  
                             76. Transitional areas.              
                             77. Mixed barren land.                                       
                        
8. Tundra                    81. Shrub and brush tundra.          
                             82. Herbaceous tundra.               
                             83. Bare ground tundra.              
                             84. Wet tundra.                      
                             85. Mixed tundra.                    
                        
9. Perennial snow on ice     91. Perennial snowfields.            
                             92. Glaciers.                        
-------------------------------------------------------------------------------