What are the effects of agricultural management on soil organic carbon in boreo-temperate systems?

Table 10 Soil sampling depth statistics for studies included in the systematic map

Number of samples per soil profile (cm)		Maximum depth sampled (cm)
Statistic	Value	Statistic	Value
Minimum	1	Minimum	2.5
Maximum	20	Maximum	330
Mean	2.28	Median	20
Standard deviation	1.97	Mean	29.84
Studies failing to mention number of soil depths sampled	33	Standard deviation	25.50
Total number of studies	737	Studies failing to mention maximum sampling depth	54
Studies taking 1 sample per soil profile	382	Total number of studies	737
Studies taking 2 samples per soil profile	90	Studies sampling to 25 cm depth or more	257

Number of samples per soil profile refers to the number of individual subsamples taken from each core across different depths where data are reported separately for each sample. Maximum depth sampled refers to the deepest extent to which soil samples were taken where data are reported

ISSN: 2047-2382