Tir Cynnal and Tir Gofal Monitoring and Evaluation Programme: Arable plant survey
Site selection was restricted to selected sample sites within six Watsonian vice-counties: Anglesey, Caernarvonshire, Denbighshire, Brecknockshire, Radnorshire and Glamorgan.
The objective for this monitoring programme was to establish whether arable plant species richness was greater on Organic agri-environment scheme (AES) and AES farms entered into specific prescriptions' fallow margins compared with conventionally managed fields.
Data recorded by specialists under contract to Welsh Government. Records present in this data have been checked against digital data supplied before submission to the NBN Gateway. Note that there is bias inherent to the data collection method where multiple sample sites within a km grid-square may have been surveyed. The effects of this situation have been mitigated, in part, by aggregating data to display only 1 instance of a species per km grid-square. Absence of species is not shown within the data. The data was also checked using the NBN record cleaner.
Data reflects the quality of the records supplied by third parties in the fulfilment of "Tir Cynnal and Tir Gofal Monitoring and Evaluation Programme: Arable plant survey".
Fields were surveyed using a strip transect of 20 0.25 m2 quadrats. The transect was 100 m long by 4 m wide located at least 10 m from the field corners and directly adjacent to the boundary (this may be the hedge, fence, grass margin or field margin). The transect position within each field was along the southern boundary.
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Metadata last updated on 2018-05-09 06:33:18.0