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Graph 3(b) showing average soil pH under Beech stand along a 200 m transect away from a pollution source. At 20m from woodland edge pH is approximately 3.6, rising to 3.9 at 200m.

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Graph 3(b) showing average soil pH under Beech stand along a 200 m transect away from a pollution source. At 20m from woodland edge pH is approximately 3.6, rising to 3.9 at 200m.


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Credit line: Forestry Commission

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