A marker horizon in reservoir sediment cores resulting from wartime agricultural changes in central Scotland

Sediment cores from the temporarily-drained Glenfarg and Glenquey Reservoirs, Scotland, show a common grain-size variation which is attributed to the rapid change in agricultural activity stimulated by the national emergency of World War II. Similar changes occurred throughout Britain's marginal agricultural lands, and it is suggested that the grain-size marker should be widely recognisable.