The Effect of Land Use Change on Transformation of Relief and Modification of Soils in Undulating Loess Area of East Poland

Table 3

Soil particle fractions and SOC concentration in the plowed layer and subsoil of the studied soils and results of ANOVA; means were separated by Tukey’s HSD test.

Soil	Sand (2–0.05 mm)		Silt (0.05–0.002 mm)		Clay (<0.002 mm)		SOC
	Mean	CV	Mean	CV	Mean	CV	Mean	CV
	g/kg	%	g/kg	%	g/kg	%	g/kg	%
	Plowed layer
Noneroded ()	148	8	764^a	1	88^a	13	9.6^ab	7.3
Slightly eroded ()	158	4	701^b	3	142^b	13	8.8^b	12.5
Moderately eroded ()	165	9	688^b	2	148^b	14	9.5^ab	13.9
Severely eroded ()	150	0	685^b	1	165^b	3	7.9^b	9.1
Depositional ()	160	7	743^a	24	97^a	24	10.9^a	11.9
	Subsoil
Noneroded ()	154	3	752^a	3	100^a	28	3.6^a	7.6
Slightly eroded ()	161	8	629^bc	4	212^bc	9	3.4^a	22.3
Moderately eroded ()	163	3	650^bc	4	188^bc	13	3.3^a	25.5
Severely eroded ()	160	13	710^ab	3	130^ab	0	3.0^a	4.0
Depositional ()	159	6	741^a	6	100^a	44	7.6^b	36.6

Mean values of solum followed by different letters are significantly different at .