Moorlands in Lower Saxony 1: 50000 – GHG emissions (WMS service)

Description

Moore is in a close exchange with the atmosphere. Near-natural moors absorb the greenhouse gas carbon dioxide and fix it in the form of peat. To a lesser extent, they release another safehouse gas, methane. With inculturation, moors are drained, fertilised and partly plowed. As a result, the organic matter preserved for thousands of years is increasingly degraded. Dehydrated and ventilated moors emit the greenhouse gases carbon dioxide and nitrous oxide. Measurements of the release of greenhouse gases on bogs are very complex in the field. To classify emissions, estimates are used, the emission factors. For cartographic representations, these must be derived by means of area-based input variables. The emission factors, which apply only to carbon-rich soils, take into account the soil type (BHK50) and the biotope types from existing nature conservation mappings (map moor biotopes). The biotope types allow approximate conclusions about the humidity conditions and the type and intensity of use (especially in grassland and forest). Where there are no biotope types, land use according to ATKIS® (BHK50 ATKIS) is used. This allows for a rough recording of the influences of use, but does not allow differentiation in terms of water levels and utilisation intensity, which would be useful in particular for grassland. In the alternative, areas in protected areas for which there is no biotope mapping are therefore assumed to be low utilisation intensity or moist conditions and the emission factor is adjusted accordingly. Greenhouse gas emissions from carbon-rich soils in Lower Saxony are shown for unsealed or low-sealed surfaces. The calculations are carried out for the following soil categories: High moor, Niedermoor, Moorgley, Organomarsch with low bog cover, flat mineral covered moor, sand deck culture and moor treposol. The map shows greenhouse gas emissions in tonnes of CO2 equivalents per hectare per year. The methodology of the emission calculation is described in detail in the geofacts 38.

Resources

Name Format Description Link
0 https://nibis.lbeg.de/net3/public/ogc.ashx?NodeId=1873&Service=WMS&Request=GetCapabilities&

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