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Table 9 Length of the main root mass according to Köstler et al. [36] and horizons cutting off the root mass that cannot be rooted through (from Nagel et al. [19], supplemented and updated)

From: Assessing the relevance of atmospheric heavy metal deposition with regard to ecosystem integrity and human health in Germany

Vegetation type/main tree species

Potential main root length [cm]

Horizons that cannot be rooted through (according to soil mapping instructions KA 5. p. 83ff)

Arable crops

40

C C;P;Gr;Y;F;Sr;Sd;Sg

Natural grassland

40

C;P;Gr;Y;F;Go;S

Heaths and moor heaths

20

C;P;Gr;Y;F;Sr;S

Marshes

110

C; P; Y; Fr

Peat bogs

90

C; P; Y; Fr

Meadows and pastures

60

C C;P;Gr;Y;F;Sr;Sd;Sg

Scots pine

180

C;P;Gr;Y;F;Sr;Sd;Sg

Spruce

80

C;P;Gr;Y;F;Sr;Sd;Sg

Copper beech

80

C;P;Gr;Y;F;Go;Sr;Sd;Sg

Alder, ash tree

80

C;P;Gr;Y;F;Sr;Sd;Sg

Oak (all species)

180

C;P;Gr;Y;F;Sr;Sd;Sg

Larch, Douglas fir

100

C;P;Gr;Y;F;Go;S

Maple (all species)

80

C;P;Gr;Y;F;Go;S

Poplars, aspen

120

 

Mountain pine

180

 

Black pine

180

C;P;Gr;Y;F;Sr;Sd;Sg

Birch

100

 

Lime tree (all species), hornbeam, Robinia

100

C;P;Gr;Y;F;Go;S

Willows and elms (all species)

60

C;P;Gr;Y;F;Sr;Sd;Sg