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Layer: Net Landscape Ecological Potential 2000 (ID: 2)

Name: Net Landscape Ecological Potential 2000

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Type: Raster Layer

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Description: NLEP enables connecting ecological potentials and human pressure via land use and detect impacts in a systematic way. NLEP for Europe is the combination of 3 different geographical datasets (layers, indexes): 1.The so-called green background landscape index (GBLI) which expresses the vegetation potential of the territory according to land use intensity; at the most aggregated level, land cover types are aggregated in 2 classes, the “green” – the less intensive use – and the non-green – the most intensive use, conventionally: artificial land and cropland. The data are computed from Corine land cover and updated accordingly. 2.The social value given to nature assessed via the importance of its designation by science and policy; this is computed from the combination of European (Natura 2000), internationally, and nationally (CDDA) designated sites maps. It captures what cannot be seen from the satellite images, namely, the species richness/habitats of landscape which has motivated designation for nature conservation. 3.The fragmentation of landscape by roads and railways, which is not captured in the previous 2 layers. The indicator retained is the “effective mesh size” (MEFF), for its natural logarithm (ln) value. The lower the effective mesh size, the higher the fragmentation. The Making of LNEP: • GBLI = Aggregation of CLC classes 2B, 3, 4 & 5, smoothed at 5 km. Range [0-100] • NATURILIS_COMB or COMB = Union of N2K and CDDA, smoothed at 5 km. Range [0-100] • Gross_LEP or GLEP= GBLI + (0.5 x COMB). Range [0-150] • GLEPscaled = (GLEP * 255) / max(GLEP). Range [0-255] • ln(MEFF). Range [0-255] and NLEP =1 + sqrt(GLEPscaled * lnMEFF ). Range [1-255]

Definition Expression: N/A

Copyright Text: Jean-Louis Weber, Rania Spyropolou, Alex Oulton

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Supported Query Formats: JSON, AMF, geoJSON

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