The point map (WMS) shows samples of the BGR-petroleum archive, which are stored at the Federal Institute for Geosciences and Natural Resources (BGR). The map contains drill sites and selected information on the well including well names and NIBIS-well identifiers (NIBIS Kartenserver des Landesamtes für Bergbau und Geologie Niedersachsens). Petroleum samples are stored in different quantities and are usually stored cool. For many of the samples geochemical data are available at BGR like relative amounts of aliphatic and aromatic hydrocarbons, isotopic compositions of individual fractions (delta13C) as well as ratios of selected aliphatic hydrocarbons and biomarkers (particularly steranes and hopanes). Samples and data are stored for internal use only due to legal issues. BGR may help with making a contact.
WMS service for the soil quality rating for cropland in Germany. The Muencheberg Soil Quality Rating (SQR) was developed by the Leibniz Centre for Agricultural Landscape Research (ZALF). SQR describes the suitability of sites under agricultural land use and helps to estimate the yield potential of sites at a global scale. This method was especially adapted for application with soil maps by the Federal Institute of Geosciences and Resources BGR and is published in the documentation of Ad-hoc-AG Boden (representing the soil experts of the geological services of the German federal states). The map shows the SQR for cropland in Germany based on the landuse stratified soilmap of Germany at scale 1:1,000,000. Climate (DWD), Relief (BKG) and landuse data (CLC2006) are used as input data in addition to the soil map. SQR consists of a series of pedotransfer rules. First, eight basic soil properties are weighted and combined to describe the soil (substrate, rooting depth, etc.). Next, hazard indicators are derived (drought risk, soil depth above solid rock). These indicators are critical for farming and limit the overall soil quality. Only those hazard indicators were selected for SQR which have the greatest effect on potential grain yield. The final SQR-score ranges from about 0 to 102 points.
The map of the relative binding strength of isoproturon in topsoils (0-30 cm) gives an overview of the sorption of this pesticide in the soils of Germany. A high binding strength of isoproturon can reduce the harmful impact on the environment by a decreased mobility. The decomposition of isoproturon in soils was not taken into account during generation of the map. The basis for calculation of the binding strength was the soil map 1:1,000,000 (BUEK1000) as well as linking rules and tabular values of isoproturon binding from Mueller & Waldeck (2011) and Rexilius & Blume (2004). However, the rank of isoproturon binding by clay was recalculated based 175 datasets of 18 publications (shift from rank 5 to rank 1). The binding strength of isoproturon depends on the content of organic matter and the soil texture (proxy for the content of clay minerals and sesquioxides) in this evaluation.
INSPIRE theme Existing Land Use
The map of Soil compaction susceptibility of soils in Germany gives an overview of the exposure of arable land to soil compaction. It shows the area of soils which are threatened by soil compaction at 35 cm depth. The map is only valid at pF 1.8. The landuse stratified soil map of Germany at scale 1:1,000,000 was used as pedological input to the model.
In the original version of the map (Map “Hydrogeology” of the Hydrological Atlas of Germany (HAD)), the surface rocks are first divided into four main types, with further differentiation depending on the extent and productivity. This original subdivision has been resolved applying the internationally widely used Standard Legend for Hydrogeological Maps (SLHyM) after Struckmeier & Margat (1995). This makes the map clearer and easier to read, but above all, it is comparable to other European hydrogeological country and regional maps, such as the International Hydrogeological Map of Europe (IHME1500). The productivity classes have been derived from permeability values. In addition, the surface strata are divided into 19 different types of consolidated or unconsolidated rocks and four types of covering layers. The map is based on the digital Geological Map of Germany 1:1,000,000 (GK1000) published by BGR in 1993.
The German Borehole Locations (GBL) contains all disposable borehole data in the Federal Republic of Germany provided by the German Survey Organizations (GSO). The 16 GSO are responsible for data storage, processing and transmission of all borehole related data. In the context of a nationwide cooperation project the header information of borehole data is collected by the BGR via the exchange format BoreholeML to establish a centralized access point. This service permits an easy access to the accumulated borehole data from the participating federal states. The first two aggregated layer show the drilling density distribution in a defined raster, while the single locations only appear in greater scales. The header data is queriable from each location. The web application Borehole Map Germany makes use of this service as one major source https://boreholemap.bgr.de/
The map layers are based on the BGR geoscientific collection and display geocoded localities of the object types fossile, mineral and rocks. In three zooming levels according to administrative district, community and local subdistrict the total number of samples for the chosen area are shown. A direct connection between the map layer and the GewiS-application (https://gewis. bgr.de) is possible.
INSPIRE theme Elevation (depth contours). It contains the depth contour of hydrographic surveying.
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