d_soil_code_porosity

CODE DESCRIPTION FROM_YEAR TO_YEAR
1 Very low (< 2 % by volume) 1984  
2 Low (2 - 5 % by volume) 1984  
3 Medium (5 - 15 % by volume) 1984  
4 High (15 - 40 % by volume) 1984  
5 Very high (> 40 % by volume) 1984