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Soil Erodibility Nomograph

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Soil Erodibility Nomograph Powered By Docstoc
					                             0                                                      0.09                                          1
                                             %Organic                0
                                                                                           Soil Structure                         2
                            10                                                      0.08   1 very fine granular                   3
                                      90      Matter
% Silt and Very Fine Sand

                                                                     1                     2 fine granular                        4
                                                                                    0.07
                            20                                       2
                                                                                           3 med, coarse granular
                                            80                                             4 blocky, platy, massive
                                                                                    0.06
                            30                   70                  3
                                                  60                 4              0.05
                            40                                                      0.04                                           6
                                 0.05-                                                                                             5
                                 0.10 mm                                            0.03                                           4
                            50                                                          0.09
                                                                50                                                                 3
                                                                                                                                   2
                            60                                                         0.08                                        1
                                                                     40
                            70                                                         0.07
                                                                          30           0.06
                            80                                            20           0.05
                            90
                                              %Sand                        10          0.04
                                                                                                                         very slow 6
                                                                                                                              slow 5
                                               0.10-2.0 mm
                                                                                                                      slow to mod 4
                       100                                                      0      0.03                              moderate 3
                                                                                                                      mod to rapid 2
                                                                                       0.02                                  rapid 1
   Soil Erodibility Nomograph                                                          0.01
                                                                                                             Permeability
                                      Foster et al. 1981                               0.00
                                      adpated by David Walker 2004

				
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