Forestry Commission logo

Forestry Commission Picture Library Image

Graph 2(a) showing soil NH4-N concentration under Beech forest based on ten samples taken every ten metres in a 200 m transect away from a pollution source. At 20m from woodland edge concentration is approximately 26 mg/kg oven dry soil, dropping to 10 mg/kg at 200m.

Reference:

Graph 2(a) showing soil NH4-N concentration under Beech forest based on ten samples taken every ten metres in a 200 m transect away from a pollution source. At 20m from woodland edge concentration is approximately 26 mg/kg oven dry soil, dropping to 10 mg/kg at 200m.


Photographer:
Copyright:
Credit line: Forestry Commission

add to lightbox add image to lightbox