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Table 6 Summary statistics of productivity indices for soils in the European Union by major land use classes and main climatic zones

From: Continental-scale assessment of provisioning soil functions in Europe

Climate zonea Area Productivity index Zone productivity factorc
km2 Percentage of EU Mean Standard dev Sum Percentage of totalb
Grassland
1 21,571 4.5 5.8 1.7 124,963 4.3 0.9
2 184,363 38.4 7.1 2.1 1,305,600 44.6 1.2
3 88,910 18.5 5.8 2.0 515,760 17.6 0.9
4 55,982 11.7 6.3 1.3 350,335 12.0 1.0
5 33,309 6.9 5.8 1.2 192,966 6.6 0.9
6 21,959 4.6 3.8 1.2 84,031 2.9 0.6
7 16,170 3.4 4.2 1.3 68,612 2.3 0.7
8 57,306 11.9 5.0 1.4 286,378 9.8 0.8
Cropland
1 32,458 2.4 6.1 1.0 198,645 2.5 1.0
2 308,693 23.0 7.1 1.3 2,189,030 27.6 1.2
3 170,655 12.7 5.7 1.6 974,337 12.3 1.0
4 337,121 25.1 6.2 1.1 2,099,960 26.5 1.1
5 175,914 13.1 5.8 1.0 1,013,880 12.8 1.0
6 174,171 13.0 4.0 1.2 698,184 8.8 0.7
7 109,687 8.2 5.0 1.2 545,528 6.9 0.8
8 35,101 2.6 5.7 1.3 198,537 2.5 1.0
Forest
1 531,907 30.9 2.3 0.8 1,202,780 19.2 0.6
2 120,702 7.0 5.0 1.7 606,879 9.7 1.4
3 233,015 13.5 4.8 1.2 1,111,580 17.8 1.3
4 276,591 16.1 3.3 0.8 923,848 14.8 0.9
5 86,110 5.0 4.5 1.1 385,547 6.2 1.2
6 113,045 6.6 4.1 1.1 460,481 7.4 1.1
7 151,472 8.8 4.8 1.5 731,081 11.7 1.3
8 207,675 12.1 4.0 1.2 836,053 13.4 1.1
  1. a1: Boreal to sub-boreal, 2: Atlantic, 3: sub-oceanic, 4: sub-continental (northern), 5: sub-continental (southern), 6: Mediterranean (semi-arid), 7: Mediterranean (temperate and sub-oceanic), 8: temperate mountainous. bExpressed in terms of productivity index. cZone productivity factor = % of total productivity indices/% of total area in the EU (h = g/b).