Upland policy and archaeological resources in North Wales
Abstract Implementation of post-war policies for the uplands has resulted in considerable impacts upon archaeological resources, which have gone largely unrecorded. A study of western Clwyd, North Wales has identified forestry and the improvement of upland vegetation for agriculture as primary causes of damage to archaeological sites. Both involve deep ploughing which is particularly destructive. Evidence suggests, albeit on a small number of samples, that Scheduled Ancient Monuments, despite their statutory protection against damage, are equally at risk as other sites of lesser importance.
Recent upland land use change and agricultural policy in Clwyd, North Wales
Abstract Analysis of map-based data reveals a dramatic post-war transformation in land use within two study areas in upland Clwyd, North Wales. The major change has been a great reduction in the extent of rough grazing. The decrease in dwarf shrub vegetation is of particular significance for the upland environment. Agricultural statistics indicate that the demise of rough grazing is inversely related to sheep numbers. In these areas, headage payments under the European Community (EC) Less Favoured Areas (LFA) directive have encouraged farmers to increase stocking rates up to the maximum level attracting subsidy. This level is beyond the carrying capacity of the semi-natural vegetation of these areas and farmers have carried out grant-aided improvements, particularly grassland conversion, in order to sustain these high sheep numbers. Important deficiencies in the adequacy of present data on land use and agricultural change in upland areas are reviewed in this paper.
Interaction of Formaldehyde and Tetrahydrofolic Acid and Its Relation to the Enzymic Synthesis of Serine
Interaction of Formaldehyde and Tetrahydrofolic Acid and Its Relation to the Enzymic Synthesis of Serine