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Table 3 Soil classifications of studies not using the USDA Natural Resources Conservation Service soil texture classification system

From: Existing evidence on the impacts of within-field farmland management practices on the flux of greenhouse gases from arable cropland in temperate regions: a systematic map

USDA soil classification

FAO soil classification

n

Not reported

 

78

Andisol

 

14

Andosols

13

Cambisols

6

Luvisols

5

Acrisols

3

Vertisol

 

3

Ferralsols

2

Oxisol

 

2

Alfisol

 

1

Arenosols

1

Hapli-Cutanic Luvisols (IUSS-WRB, 2007)

1

Nitisols

1

Podzols

1

Vertisols

1

Ultisol

 

1

  1. N = number of studies. Blanks indicate ‘not reported’
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Environmental Evidence

ISSN: 2047-2382