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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).