d_layer_surface

CODE DESCRIPTION FROM_YEAR TO_YEAR
1 Tree layer (only ligneous and all climbers) > 5 m height 1984  
2 Shrub layer (only ligneous an all climbers) > 0.5 m height 1984  
3 Herb layer (all non-ligneous, and ligneous < 0.5m height) 1984  
4 Moss layer (i.e. terricolous bryophytes and lichens) 1984  
5 Lower Shrubs (FR) 2004  
6 Upper Shrubs (FR) 2004