# Field boundaries for Berlin / Brandenburg, Germany

Provides ca. 90.000 official field boundaries from the federal states of Berlin and Brandenburg in Germany.
It has been converted to a fiboa GeoParquet file from a Shapefile that was provided by the state.

- **Source Data Provider:** [Land Brandenburg](https://geobroker.geobasis-bb.de/gbss.php?MODE=GetProductInformation&PRODUCTID=9e95f21f-4ecf-4682-9a44-e5f7609f6fa0)
- **Converted by:** [Matthias Mohr](https://mohr.ws)
- **License:** [Data licence Germany – attribution – Version 2.0](https://www.govdata.de/dl-de/by-2-0)
- **Projection:** EPSG:25833 (UTM 33N)

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- **[Download the data as fiboa GeoParquet](https://data.source.coop/fiboa/de-bb/dfbk.parquet)**
- [STAC Browser](https://radiantearth.github.io/stac-browser/#/external/data.source.coop/fiboa/de-bb/stac/collection.json)
- [STAC Collection](https://data.source.coop/fiboa/de-bb/stac/collection.json)
- [PMTiles](https://data.source.coop/fiboa/de-bb/dfbk.pmtiles)

## Columns

| Property               | Data Type | Description                                                  |
| ---------------------- | --------- | ------------------------------------------------------------ |
| id                     | string    | Numerical internal identifier, same as `flik`.               |
| flik                   | string    | Area identifier for field blocks. Example: `DEBBLI0552020444` |
| area                   | float     | (Gross) Area in ha                                           |
| net_area               | float     | Net area in ha ("exkl. zugeordnetem Landschaftselement")     |
| perimeter              | float     | Length of the boundary in meters                             |
| determination_datetime | datetime  | Valid since the given date.                                  |
| expiry_datetime        | datetime  | Valid until the given date.                                  |
| fgue_jahr              | string    | Validity year                                                |
| hbn                    | string    | Category of main land use                                    |
| kreis_nr               | int32     | Identifier for the regional office for agriculture           |
| tk10_blatt             | string    | Paper of the 1:10,000 topographic map in which the center of where the center of gravity of the field block lies. Example: `4044SO` |

The following values are valid for `hbn`:

- 34A = non-agricultural area on former arable land, eligible under Art. 32 (2b (i)) of Regulation 1307/2013
- 34G = non-agricultural area on former grassland, eligible under Art. 32 (2b (i)) of Regulation 1307/2013
- AL = arable land 
- AL-AF = Agroforestry on arable land
- DK = Permanent crops
- GL-ELP = Grassland management under "established local practices"
- GL = Grassland 40545 307026.8188
- GL-MO = Grassland created from arable land on moorland
- HE = Heath, no agricultural land

## Lineage 

- Data downloaded on 2024-04-12 from https://data.geobasis-bb.de/geofachdaten/Landwirtschaft/dfbk.zip.
- Converted to GeoParquet using [fiboa-cli](https://github.com/fiboa/cli), version 0.3.2-dev.