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1
(), - () .
, . . ()
, .
.
.
>20 mm
2-20 mm
____________________________________________________
0,02-2 mm
() 0,002-0,02mm
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2
:
- >1 mm
- 0,05-1 mm
- 0,002-0,05mm
-
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3
: 4,5 cm3
. 45%.
1 mm . 100% -15% = 85%
.
45/100 85 / 100 100=38,28%
3.
(V0) 5 cm3. 50-70 cm
3 3 cm
35,5% CaCl2
( ). ,
100cm3
24h. ,
(V1) ().
.
K =
: V1 =7,5cm3
=0,5 => 11,32%
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4
4.
,
(100%) .
=100-(+) (%)
:
=100- (45+11,31) = 43,68%
,
43,68 85 / 100 = 37,13%
:
, . (USDA. Soil survey manual (1993)).
, . ( -
)
. ( )
.
, 20%
.
, . . 30% , 50%
20% -. . ,
, .
( ).
,
, :
< 10%
10-50% > 50%
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5
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6