The Influence of Vermicompost and Various Concentrations of Lead on the Enzymatic Activity of Sierozem Soils of Kazakhstan

Table 2

Granulometric (mechanical) composition of soils taken from the fields of rural districts of Sauran and Otrar districts of Turkestan region.

The place where samples were taken from fields near landfill	Sampling depth, in cm	Fraction sizes, in mm (their content, % of absolutely dry soil)
		>3	3–1	1–0.25	0.25–0.05	0.05–0.01	0.01–0.001	<0.001
Maidantal (Sauran district)	0–5	1.5	2.1	0.9	20.1	32.0	6.4	13.6
	5–20	2.0	6.3	1.0	23.8	30.0	5.7	12.0
	20–30	2.3	4.8	2.1	29.6	35.2	6.1	12.4
	30–40	2.8	2.1	1.8	37.2	34.1	7.6	11.2
	40–50	3.3	3.7	1.3	28.9	29.8	6.6	10.8
Temir (Otrar district)	0–5	2.0	2.5	1.1	18.1	33.3	5.0	15.9
	5–20	2.4	4.3	2.0	22.6	31.2	5.8	13.1
	20–30	2.9	5.0	2.5	30.1	36.0	6.3	12.0
	30–40	3.1	3.0	2.3	32.2	33.0	7.3	12.2
	40–50	3.6	3.8	2.2	26.4	30.9	7.7	11.9
Karatau nature reserve (Sauran district)	0–5	5.0	3.2	5.0	33.4	28.1	10.6	14.3
	5–20	5.6	2.6	2.9	40.6	26.9	9.1	17.2
	20–30	1.8	1.7	3.3	30.0	21.4	7.8	17.4
	30–40	1.7	1.0	1.7	22.5	21.2	7.5	17.5
	40–50	2.0	2.0	1.2	18.7	20.5	4.4	20.2