Wood, Claire M., Alison, Jamie, Botham, Marc S., Burden, Annette, Edwards, Francois, Garbutt, R. Angus, George, Paul B.L., Henrys, Peter A., Hobson, Russel, Jarvis, Susan, Keenan, Patrick, Keith, Aidan M., Lebron, Inma, Maskell, Lindsay C., Norton, Lisa R., Robinson, David A., Seaton, Fiona M., Scarlett, Peter, Siriwardena, Gavin M., Skates, James, Smart, Simon M., Williams, Bronwen, Emmett, Bridget A., Wood, Claire M., Alison, Jamie, Botham, Marc S., Burden, Annette, Edwards, Francois, Garbutt, R. Angus, George, Paul B.L., Henrys, Peter A., Hobson, Russel, Jarvis, Susan, Keenan, Patrick, Keith, Aidan M., Lebron, Inma, Maskell, Lindsay C., Norton, Lisa R., Robinson, David A., Seaton, Fiona M., Scarlett, Peter, Siriwardena, Gavin M., Skates, James, Smart, Simon M., Williams, Bronwen, and Emmett, Bridget A.
The Glastir Monitoring and Evaluation Programme (GMEP) ran from 2013 until 2016 and was probably the most comprehensive programme of ecological study ever undertaken at a national scale in Wales. The programme aimed to (1) set up an evaluation of the environmental effects of the Glastir agri-environment scheme and (2) quantify environmental status and trends across the wider countryside of Wales. The focus was on outcomes for climate change mitigation, biodiversity, soil and water quality, woodland expansion, and cultural landscapes. As such, GMEP included a large field-survey component, collecting data on a range of elements including vegetation, land cover and use, soils, freshwaters, birds, and insect pollinators from up to three-hundred 1 km survey squares throughout Wales. The field survey capitalised upon the UK Centre for Ecology & Hydrology (UKCEH) Countryside Survey of Great Britain, which has provided an extensive set of repeated, standardised ecological measurements since 1978. The design of both GMEP and the UKCEH Countryside Survey involved stratified-random sampling of squares from a 1 km grid, ensuring proportional representation from land classes with distinct climate, geology and physical geography. Data were collected from different land cover types and landscape features by trained professional surveyors, following standardised and published protocols. Thus, GMEP was designed so that surveys could be repeated at regular intervals to monitor the Welsh environment, including the impacts of agri-environment interventions. One such repeat survey is scheduled for 2021 under the Environment and Rural Affairs Monitoring & Modelling Programme (ERAMMP). Data from GMEP have been used to address many applied policy questions, but there is major potential for further analyses. The precise locations of data collection are not publicly available, largely for reasons of landowner confidentiality. However, the wide variety of available datasets can be (1) analyse