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Distribution and extent of High Nature Value farmland in the Republic of Ireland (tetrad scale)
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2019-05-06
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S. Matin, C. A. Sullivan, , J. A. Finn, D. Ó hUallacháin, S. Green, D. Meredith, J. Moran. Distribution and extent of High Nature Value farmland in the Republic of Ireland (tetrad scale)
Abstract
High Nature Value (HNV) farmland is extensively managed farmland that has high biodiversity. This farmland is important for the conservation of semi-natural habitats and the plants and animals linked with them. Supporting this type of farmland will ensure high levels of farmland biodiversity, vibrant rural communities, high water, air and soil quality and resistance to flooding among other things. To map the likely distribution of HNV farmland in the Republic of Ireland (ROI) we used five indicators adapted for the Irish context and weighted based on expert knowledge and literature. The indicators used are: semi-natural habitat cover (CORINE land cover), stocking density (Land parcel information system), hedgerow/scrub cover (Teagasc), river and stream density (OSI), and soil diversity (Teagasc). Indicator data sets were included in a weighted sum model that combined raster indicator inputs, representing relative weights and the output HNV farmland had a tetrad-scale (2 km × 2 km) spatial resolution.