Potential nitrate emissions in kg N/(ha*a) according to Section 8 AVV GeA of the reference plots in North Rhine-Westphalia, as of January 2022

The current agricultural N balance surplus is shown in kg N/(ha*a) as a 4-year average for the period 2016-2019 per reference plot. The data basis is the agricultural N balance surpluses per municipality from the period 2016-2019 (arithmetic mean) determined by the DLWK in accordance with Annex 4 AVV GeA. The conversion of the N balance surpluses per municipality to the agricultural areas in the model grid (100 x 100 m) of the hydrological substance input model GROWA+ NRW 2021 is carried out by LANUV NRW in accordance with the RAUMIS / mGROWA-DENUZ-WEKU interface (see Appendix 4). The current N balances (2016-2019) determined in this way per reference plot are output per field block according to field block statistics NRW 2021. The data set contains the field blocks according to the NRW 2021 field block statistics as polygons (feature in geodatabase “GLDN-Potential Nitrataustraege-nach-Par-8-AVV-GeA_EPSG25832_Geodatabase.gdb” or shape “GLDN-Potenzielle_Nitrataustraege-nach-Par-8-AVV-GeA_EPSG25832 ")