The publication of this Handbook was supported by the Russian Federation

Particle-size-distribution
Humus content
< 0.5%
0.5-1%
1-2%
2-4%
4-8%
8-15%
Gravel, CS
5
6
8
13
21
35
MS
8
9
11
16
24
38
FS
10
11
13
18
26
40
LS, SL
<10% of  clay
14
15
17
22
30
45
SiL
17
18
20
25
34
49
Si
19
20
22
27
36
51
SL
10-20% of  clay
22
23
26
31
39
55
L
25
26
29
34
42
58
SiL
10-27%of  clay
28
29
32
37
46
62
SCL
32
33
36
41
50
67
CL, SiCL
44
46
48
53
63
80
SC
51
53
55
60
70
88
SiC, C
40-60% of  clay
63
65
68
73
83
102
HC
<60% of  clay
105
107
110
116
126
147

---

7
Chapter 1.Salt-affected soils of the Eurasian Region: diagnostics, criteria and distribution 
In Ukraine, water quality and its suitability for irrigation are regulated by the national standards 
of  irrigation water quality, agricultural criteria and also regulations and standards of  nature 
protection and conservation. Criteria for assessing irrigation water quality, the risks of  salinization, 
solonetzization and alkalinization of  soils and the risks of  salt toxicity for plants growing on soils 
with different buffer capacities are presented in Annex B [2, 3, 5, 6].
Six groups of  soils with different particle-size distributions were assigned specific threshold levels of  
salts in chloride ion equivalents on the basis of  published data and results of  long-term studies by 
S.A. Balyuk and colleagues from the Laboratory of  Fertility of  Irrigated and Solonetzized soils of  
the Institute for Soil Science and Agrochemistry Research named after O.N. Sokolovsky (Kharkiv). 
The irrigation water quality assessment used to determine the risk of  irrigation salinity is set out 
in Table 1.5. The irrigation water quality assessment to determine the risk of  soil alkalinization is 
presented in Table 1.6.