agricultural land classification (ALC)

The classification of agricultural land into Grades 1, 2, 3 (a and b), 4 and 5, according to its versatility and suitability for growing crops. It takes account of climate, soils and topography. The ALC forms part of the planning system in England and Wales.

This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
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