Table 1 Classification of land into groups based on land use and subgroups based on soil properties defined for Land Group II.

From: Assessment of potentially toxic elements in agricultural and urban soils of lesser Poland using ICP-MS and uncertainty estimation

Group number

Subgroup

Land use type

I

 

residential areas; other built-up areas; urbanized undeveloped or developing areas; built-up agricultural land; recreational areas, including holiday resort areas, children’s playgrounds, beaches, developed parks, green squares, and lawns (excluding roadside greenery); sports areas such as stadiums, sports fields, ski jumps, toboggan runs, shooting ranges, swimming areas, golf courses; areas serving entertainment functions such as amusement parks and fairgrounds, zoological and botanical gardens;

II

II-1

Agricultural areas and allotment gardens

very light mineral soils with an FG02 fraction content of less than 10%, regardless of the pHKCl value; light mineral soils with an FG02 fraction content of 10–20% and a pHKCl value less than or equal to 6.5;

 

II-2

light mineral soils with an FG02 fraction content of 10–20% and a pHKCl value greater than 6.5; medium mineral soils with an FG02 fraction content of 20–35% and a pHKCl value less than or equal to 5.5; heavy mineral soils with an FG02 fraction content greater than 35% and a pHKCl value less than or equal to 5.5; mineral-organic soils with organic carbon content between 3.5–6%, regardless of the pHKCl value;

 

II-3

medium mineral soils with an FG02 fraction content of 20–35% and a pHKCl value greater than 5.5; heavy mineral soils with an FG02 fraction content greater than 35% and a pHKCl value greater than 5.5; mineral-organic and organic soils with an organic carbon content above 6%, regardless of the pHKCl value;

III

 

forests, hillforts, burial mounds, historic fortifications; green areas subject to forms of nature protection in accordance with nature conservation regulations;

IV

 

areas of industrial facilities, storage yards, and warehouses; mining areas and sites; public road areas