This dataset was reported by the Grand Duchy of Luxembourg under the Habitats Directive.

Article 17 requires Member States to report every six years about the progress made with the implementation of the Habitats Directive. As the main focus of the directive is on maintaining and/or restoring a favourable conservation status for habitat types & species of community interest, monitoring & reporting under the directive is focusing on that. Monitoring of conservation status is not restricted to Natura 2000 sites and data need to be collected both in and outside the Natura 2000 network to achieve a full appreciation of conservation status. Text taken from http://ec.europa.eu/environment/nature/knowledge/rep_habitats/index_en.htm

This reporting obligation is an Eionet core data flow.

See also: http://wms.inspire.geoportail.lu/geoserver/ps/PS.ProtectedSitesNatureConservation-Habitats/wms?service=WMS&version=1.3.0&request=GetCapabilities