The project Arable land in Sweden 1810 and 1870 has reconstructed arable land and meadows in 1810 and 1870 at the district level for the whole of Sweden based on nearly ten thousand land surveying maps. The calculations have then been combined with reliable data to reconstruct agricultural production and consumption during these years. The data has been compiled in a database, free for researchers to use.

During the 19th century, the agrarian revolution took place in Sweden. More and more land was reclaimed, new farming systems and crops were introduced and food security improved. A contemporary agricultural statistic is available from 1802 onwards, but unfortunately leave much to be desired.

The historical map material enables comprehensive and significantly more reliable estimates of agricultural areas than other sources. The Land Survey in Sweden dates back to 1628 and in the following centuries, an extraordinary amount of large-scale maps were produced, covering almost every corner of the country. The processing of the map material was previously time-consuming, but by the Land Survey publishing the material online, a nationwide detailed investigation was made possible.