d_root_abundance

for further information see Explanatory Item: 141

CODE DESCRIPTION FROM_YEAR TO_YEAR VERY_FINE FINE MEDIUM COARSE
1 Very few 2003   1 - 20 1 - 20 1 - 2 1 - 2
2 Few 2003   20 - 50 20 - 50 2 - 5 2 - 5
3 Common 2003   50 - 200 50 - 200 5 - 20 5 - 20
4 Many 2003   >200 >200 >20 >20
9 None 2003   0 0 0 0