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3.1.1.2. Chemical and physical and chemical properties of soils of the Voronezh reserve


Soils of pine forests. In dernovo-wood soils of pine forests the richest with carbon are cespitose horizons, the carbon content in which varies within 1 %. The lowest concentration are marked in soils dated to Krasnolesnensky katene.
The maximum concentration are registered in soils Bolsheprivalovsky kateny.
In gumusovo-accumulative horizons the maximum content of carbon is noted in the soils generated on II terrace of the river Voronezh, (2.02 %), and minimum - in soils of IV terrace of the river Voronezh in Krasnolesnensky and Bolsheprivalovsky katenah (0.78 and 0.86 % accordingly). In illjuvialnyh and transitive horizons to a parent rock for all dernovo-wood soils of pine forests the low content of carbon of 0 % is characteristic. For all soils of pine forests change of reaction of medium from sour to subacidic in soils Krasnolesnensky and Bolsheprivalovsky katen, close to neutral in soils Usmansky kateny and neutral in soils Borsky and Ramonsky katen is characteristic. Dernovo-wood soils of a milletgrass are characterised by the low content exchange kationov calcium and magnesium. An exception make dernovolesnye soils of III terrace of the river Voronezh, dated to Borsky kateny in which the calcium and magnesium content in cespitose horizon makes 40.1 and 14 mg-ekv/100 g, accordingly.
Table 8
Chemical and physical and chemical properties of dernovo-wood soils of pine forests
The Voronezh reserve
tttg Horizon Depth, sm О4
WITH '
And
And
About
About
' E;

WITH '
Z
5
With
AND
And
1 and
About g about
+ ~ ^ "ev"
And g
j | - “
+ ~ ^ o 8
S *
fa U ABOUT _Г
1 and
The Krasnolesnensky
LGG
HELL 0-5 1.86 34.3 4.83 4.5 2.9 7.4
AND 5-17 0.78 8.26 4.55 1.2 0.9 2.1
AE 17-29 0.28 5.46 4.75 0.9 1.1 2.0
IN 29-64 0.22 2.66 5.36 1.4 1.1 2.5
VS > 64 0.14 2.66 5.45 1.3 0.3 1.6
The Bolsheprivalovsky
LGG
HELL 0-3 16.60 46.90 Not opr.
8.4 11.0 19.4
AND 3-12 0.86 5.46 4.47 1.4 0.3 1.7
АЕ1 12-31 0.10 1.82 4.60 0.7 0.6 1.3
АЕ2 31-50 0.40 2.10 4.51 1.5 0.6 2.1
В1 50-65 0.14 2.38 4.75 1.1 0.9 2.0
В2 > 65 0.32 2.94 5.12 0.7 1.4 2.1
Ramonsky LGG AND 0-17 2.02 8.54 4.63 1.5 0.6 2.1
AE 17-39 1.96 2.66 5.01 0.9 2.3 3.2
IN 39-57 1.38 1.82 5.53 0.9 0.9 1.8
В1 57-70 1.00 1.82 5.88 1.2 0.3 1.5
В2 > 70 1.00 2.94 6.39 1.5 0.9 2.4
Borsky LGG HELL 0-6 7.05 39.34 4.24 40.1 14.0 54.1
AND 6-14 1.45 32.62 4.87 8.7 13.9 22.6
Bi 14-25 0.35 3.50 5.10 0.7 0.60 1.3
В1 25-60 0.24 2.38 5.47 Not opr. Not opr. Not opr.
VS > 60 0.19 2.66 6.27 Not opr. Not opr. Not opr.
Usmansky LGG HELL 0-7 4.88 21.42 4.72 4.8 2.9 7.7
AE 7-14 1.74 7.70 4.57 0.9 0.6 1.5
В1 41-41 1.00 4.90 4.80 0.9 0.3 1.2
В2 41-59 0.56 2.10 5.28 1.0 1.4 2.4
VS > 59 0.64 4.34 5.81 0.7 0.6 1.3

In cespitose forest soils of others katen the calcium content varies in a range of 4 mg-ekv/100 g, magnesium - 2 mg-ekv/100 of In gumusovoakkumuljativnyh horizons occur decrease in concentration of exchange calcium and magnesium to 8 mg-ekv/100 g and 0 mg-ekv/100 g, accordingly. In glubokolezhashchih horizons of concentration exchange kationov decrease to 0 mg-ekv/100 g in soils of high terraces and sledovyh quantities in soils of III terrace of the river Voronezh. The greatest content shchelochnogidrolizuemogo nitrogen is marked in cespitose horizons with the maximum values of 39.34 mg/100 g in soils Borsky kateny. In gumusovo-accumulative horizons lower content of nitrogen is characteristic, except for soils Borsky kateny in which it makes 32.62 mg/100 g while in soils of others katen the content shchelochnogidrolizuemogo nitrogen varies within 5 mg/100 of In illjuvialnyh and transitive horizons to a parent rock the minimum concentration shchelochnogidrolizuemogo nitrogen which vary within 1 mg/100 of are marked
Soils of oak forests. Under oak groves Bolsheprivalovsky, Usmansky and Ramonsky katen dernovo-wood soils were generated, in Borsky and Krasnolesnensky katenah light grey forest-steppe soils were generated. The maximum content of carbon is registered in cespitose horizons Usmansky and Krasnolesnensky katen 55.60 and 12.52 %, accordingly.
In gumusovo-accumulative horizons the maximum content of carbon as is observed in soils Usmansky kateny - 3.38 %, in dernovolesnyh soils Ramonsky kateny its minimum content - 0.93 % is registered. With depth for all soils decrease in the content of carbon to the tenth shares of percent is characteristic, however, in dernovo-wood soils Usmansky kateny the raised content of carbon in an illuvial horizon - 1.1 % is marked. For the majority of soils reaction of medium is characteristic close to neutral, however in soils Usmansky and Bolsheprivalovsky katen subacidic and sour reaction of medium is observed. The content maximum shchelochnogidrolizuemogo nitrogen is observed in cespitose horizon of dernovo-wood soils Usmansky and Bolsheprivalovsky
Table 9
Chemical and physical and chemical properties of light grey wood and grey forest soils of oak groves of the Voronezh reserve
[-4
U
CH
Horizon Depth, sm WITH, % N, mg/100 g ch
About
09
AND
And
Са2 +, mg - ekv/100 g -
+ WITH
p
The sum, mg - ekv/100 g
Krasnolesnesky LGG AND 0-17 1.60 18.34 6.29 5.0 1.7 6.7
AV 17-37 0.16 2.94 6.24 0.7 1.1 1.8
IN 37-67 0.06 2.66 6.46 1.4 0.6 2.0
VS > 67 0.08 2.10 6.6 1.5 1.4 2.9
The Bolsheprivalovsky
LGG
HELL 0-5 12.52 44.94 6.22 4.8 0.6 5.4
Ai 5-15 1.58 9.66 4.45 2.6 0,9 3.5
А2 15-46 0.16 3.50 4.87 2.2 Not opr. 2.2
IN 46-65 0.06 2.10 4.78 2.2 0.6 2.8
BG > 65 0.08 3.78 5.85 1.0 0.3 1.3
Ramonsky LGG AND 0-15 0.93 11.5 5.1 2.9 2.7 5.6
В1 15-60 0.06 8.54 6.3 1.1 0.5 1.6
В2 60-75 0.06 9.66 6.6 1.1 1.1 2.2
VS > 75 Not opr. 7.42 6.6 1.8 1.5 3.3
Borsky LGG А1 0-17 1.97 21.10 6.3 3.9 1.8 5.7
А2 17-36 0.41 6.70 5.9 6.3 1.4 7.7
AV 36-80 0.29 3.0 6.4 4.4 1.2 5.6
IN 80-98 0.29 2.10 6.6 5.3 1.8 7.1
VS > 98 0.11 Not opr. 6.7 1.1 0.3 1.4
Usmansky LGG Hell 0-4 55.6 32.06 4.57 3.8 1.1 4.9
А1 4-9 3.38 15.54 4.29 0.9 0.3 1.2
А2 9-19 2.16 8.26 4.38 1.0 2.0 3.0
AV 19-35 1.66 6.58 4.39 1.0 0.6 1.6
IN > 35 1.02 3.50 5.06 0.7 Not opr. 0.7

katen - 32.06 and 44.94 mg/100 g, accordingly. In gumusovo-accumulative horizons, on the contrary, the maximum of the content of nitrogen is necessary on is light - grey forest soils Borsky kateny - 21.10 mg/100 of Minimum
Concentration of nitrogen are registered in gumusovo-accumulative
Horizon of dernovo-wood soils Ramonsky kateny - 11.5 mg/100 of For all soils are characteristic content decrease shchelochnogidrolizuemogo nitrogen with depth where in transitive horizons to a parent rock, it makes 2.01 - 5.74 mg/100 of the highest concentration of exchange calcium are marked in light grey forest-steppe soils Borsky and Krasnolesnensky katen.
Soils of aspen forests. Under aspen forests in territory of the Voronezh reserve light grey forest-steppe sandy loam soils were generated. The highest concentration of carbon are noted in soils of the lowest Ramonsky and Borsky katen. In gumusovo-accumulative horizons of soils of these groups the carbon content varies within 2.72 - 3.75 %. In that time as, in soils orograficheski high katen varies within 1.72 - 0.52 %. As well as in other soils, in soils under aspen forests the quantity of carbon decreases with depth. Reaching the minimum values in transitive horizons to a parent rock. However, the greatest concentration all as are characteristic for soils low katen - 0.56 - 0.88 %. All soils are characterised medium subacidic or close to neutral reaction. shchelochnogidrolizuemogo nitrogen - 34.86 mg/100 g in these soils are characterised by the highest content horizons of duffs Bolsheprivalovsky and Ramonsky katen. Distribution katen on concentration of nitrogen in a gumusovo-accumulative horizon looks similarly, to organic carbon distribution. For all transitive horizons to a parent rock low concentration shchelochnogidrolizuemogo nitrogen, with a maximum in soils Krasnolesnensky kateny - 4.06 mg/100 g, and a minimum - 1.82 mg/100 g, in soils Ramonsky kateny are characteristic. For all soils the low content exchange kationov calcium and magnesium is characteristic. And, for all soils very low content of ions of magnesium, except for light grey forest-steppe soil Borsky kateny, in horizon is characteristic In, the raised content of magnesium, in relation to other horizons - 7.6 mg-ekv/100 of is observed
Soils of alder thickets. Not looking at wide spreading on territory of reserve, soil of inundated alder thickets in absolute heights are located practically at one level and have no strongly pronounced differences to morphological signs. For all soils of this biocoenosis sour reaction of medium, with its gradual change downwards on a profile towards the neutral is characteristic. The inundated forest soils generated under alder woods, are characterised by the high
Table 10
Chemical and physical and chemical properties of light grey wood and grey forest soils of aspen forests of the Voronezh reserve
U
U
CH
Horizon Depth, sm WITH, % N, mg/100 g ch
About
09
AND
And
S
With -
+ ”
And
j u in about '* about
WITH '
+ ^ And
S %
The sum, mg - ekv/100 g
Krasnolesnesky LGG HELL 0-2 1.32 27.86 6.26 8.9 1.1 10.0
AND 2-10 0.74 6.86 5.63 2.4 0.6 3.0
IN 10-18 0.14 2.94 5.99 1.2 0.6 1.8
ВС1 18-48 0.26 3.50 6.39 0.9 0.6 1.5
ВС2 > 48 0.08 4.06 6.02 1.7 0.6 2.3
The Bolsheprivalovsky
LGG
ABOUT 0-5 1.34 34.86 5.08 5.1 2.3 7.4
Ai 5-23 0.52 5.46 4.84 1.5 0.6 2.1
А2 23-50 0.34 3.22 5.07 0.3 0.9 1.2
В1 50-103 0.08 2.94 5.75 1.0 0.9 1.9
В2 > 103 0.12 2.66 5.61 0.4 0.5 0.9
Ramonsky LGG ABOUT 0-5 2.72 34.86 5.46 6.7 1.7 8.4
AND 5-17 1.7 16.66 5.54 2.6 0.6 3.2
IN 17-42 0.98 2.66 7.22 1.2 1.5 2.7
ВС1 42-70 1.00 2.10 6.96 0.7 0.6 1.3
ВС2 > 70 e 0.88 1.82 6.52 1.2 0.6 1.8
Borsky LGG А1 0-10 3.25 29.54 7.04 2.4 Not opr. 2.4
А2 10-20 3.85 13.86 6.91 Not opr. Not opr. Not opr.
В1 20-50 0.99 7.56 6.46 Not opr. Not opr. Not opr.
В2 50-60 0.68 4.62 6.52 0.7 7.6 8.3
VS > 60 0.56 3.22 6.40 0.3 0.5 0.8
Usmansky LGG AND 0-14 1.72 21.70 5.79 2.2 0.6 2.8
AV 14-31 0.28 4.06 5.70 1.9 0.6 2.5
IN 31-53 0.12 2.94 5.98 1.2 2.3 3.5
VS > 53 0.10 2.10 5.91 1.1 1.1 2.2

The carbon content in the top peat horizons. The carbon minimum percentage is noted in soils Bolsheprivalovsky kateny - 19.5 %. The maximum concentration are registered in inundated forest soils of bottom lands of river Usman in Krasnolesnensky katen, and the rivers Voronezh in Ramonsky katen and make 35.21 and 34.91 %, accordingly. As in other types of soils the organic substance content in these soils with depth decreases. In soils Krasnolesnensky and Ramonsky katen this falling occurs sharply and already in organo-mineral horizons of concentration of carbon are close to that in gumusovo-accumulative horizons of soils eljuvialnyh landscapes. While in inundated forest soils of river Ivnitsa and left banks of river Usman the carbon content downwards on a profile falls more smoothly, and the minimum of its concentration reach only in gleevyh transitive horizons to a parent rock.
Table 11
Chemical and physical and chemical properties of inundated forest soils of alder thickets of the Voronezh reserve.
[-4
U
CH
Horizon Depth, sm WITH, % N, mg/100 g ch
About
09
AND
And
S
With - — ^ + ”
50
9.34 15.3 6.68 6.6 2.4 9.0
The Bolsheprivalovsky
LGG
Ti 0-15 19.5 31.80 6.34 82.4 12.5 94.9
T2 15-31 16.8 28.80 6.48 77.4 4.8 82.2
G > 31 15.1 Not opr. 6.15 72.9 6.2 79.1
Ramonsky LGG Th 0-4 55.33 32.34 4.76 9.4 15.1 24.5
Т2 4-9 51.68 Not opr. 4.91 6.7 16.8 23.5
Tz 9-18 7.48 44.38 5.00 3.7 2.8 6.5
Gi 18-29 0.70 7.14 5.42 1.2 2.5 3.7
G2 > 29 0.18 11.06 5.85 0.9 1.4 2.3
Borsky LGG Th 0-10 31.2 68.18 5.89 161.5 99.6 261.1
Т2 10-20 33.2 32.06 5.35 176.6 44.3 220.9
Tz 20-30 26.16 46.90 5.98 167.6 32.9 200.5
TG > 30 2.72 11.06 6.02 22.4 14.9 37.3

Concentration shchelochnogidrolizuemogo nitrogen in a profile of all considered inundated soil are rather close and behave equally. The small deviation aside from an overall picture is observed in soils of a bottom land of river Ivnitsa carried to Borsky kateny. In these soils the greatest concentration shchelochnogidrolizuemogo nitrogen in all peat horizons - 68.18 mg/100 of Besides, in these floodplain soils from all surveyed are noted, the highest content bivalent exchange kationov is observed. Concentration of calcium in peat horizons varies within 161 mg-ekv/100 g, and magnesium - 32 mg-ekv/100 of High concentration of calcium are characteristic and for soils of bottom land Usmani both Krasnolesnensky, and Bolsheprivalovsky katen. However, the magnesium content in them much more low, than in floodplain soils Borsky kateny. The lowest concentration of calcium and magnesium are registered in a profile of an inundated forest soil Ramonsky kateny where they vary within 5.5 - 21.0 mg-ekv/100 g and 0.3 - 4.0 mg-ekv/100 of
Soils of bogs. Bog soils Ramonsky and Borsky katen are characterised by the high content of an organic carbon in the top part of a profile - 44 %. In the bottom peat horizons there is a decrease in its content to 4 %. These soils are characterised strongly sour and sredne by sour reaction of medium in the top horizons. Downwards on a profile there is an insignificant alkalization and consequently rn gley horizons fluctuates from 5.2 to 5.6. The calcium content in the top part of peat thickness fluctuates from to mg-ekv/100 of With depth there is a gradual reduction of quantity of calcium and already in bottom ogleennyh horizons its content falls to mg-ekv/100 of
On LU valleys of lateral inflows were generated torfjano-peregnojno - gleevye shallow soils. Reaction of medium changes downwards on a profile from subacidic to close to the neutral. The calcium content in the top part of a profile makes 6.3 mg-ekv/100 of With depth there is a gradual reduction of its content and in a gley horizon the quantity of calcium makes 0.9 mg-ekv/100 of of Magnesium contains much less than calcium. In peat horizon - 2.1 mg-ekv/100 g, with depth there is a sharp reduction of its quantity to 0.2 mg-ekv/100 of
Table 12
Chemical and physical and chemical properties marsh nizinnyh soils
U
U
CH
Horizon Depth, sm WITH, % N, mg/100 g ch
About
09
AND
a
s
+ C
And
And
j u
g about '* about
+ ^ o/j g
S
The sum, mg - ekv/100 g
Krasnolesnesky LGG T 0-4 35.09 i0i.8 6.92 Not opr. Not opr. Not opr.
AND 4-i4 32.76 3i.78 7.25 9.6 3.4 i3.0
G > i4 0.55 4.62 7.62 i.6 i.2 2.8
The Bolsheprivalovsky
LGG
T 0-i5 38.8i 35.7 4.67 i4.5 8.7 23.2
AND i5-3i i.82 8.26 5.22 3.5 3.7 7.2
Gi 3i-4i 0.47 2.38 5.87 0.8 - 0.8
G2 > 4i 0.42 5.46 6.08 0.5 - 0.5
Ramonsky LGG Ti 0-i0 34.9i 39.62 5.62 2i.0 3.i 24.i
Т2 i0-20 i2.50 32.34 5.77 i8.0 0.3 i8.3
TG 20-36 i.58 i6.66 5.39 ii.0 i.4 i2.4
Gi 36-60 0.38 3.78 5.58 5.5 i.4 6.9
G2 > 60 0.24 6.30 5.68 i0.0 4.0 i4.0
Borsky LGG Ti 0-i0 44.32 44.38 4.25 7.2 i2.0 i9.2
T2 i0-i5 3i.67 42.7 4.66 4.7 6.4 ii.i
Tz i5-23 4.23 i8.9 4.43 4.3 2.i 6.4
Gi 23-29 3.35 25.62 4.5 i.5 4.4 5.9
G2 > 29 0.56 Not opr. 5.4i 0.9 i.3 2.2
Usmansky LGG T 0-9 24.25 50.26 4.06 7.2 - 7.2
AND 9-2i 0.72 i2.i8 4.i3 3.8 - 3.8
Gi 2i-37 i.6i 4.90 4.58 0.8 - 0.8
G2 37-50 0.52 5.i8 4.83 0.7 - 0.7

The soils generated at landscape level II nadpojmennoj of a terrace of river Usman are characterised bolshej by capacity of peat horizon - 36-51 sm, Reaction of medium fluctuates from silnokisloj in the top part of a profile to srednekisloj in the bottom. The calcium content fluctuates from 8.2 to 6.2 mg-ekv/100 of In the bottom part of a profile its quantity magnesium Distribution on a profile to similarly previous described cuts changes from 0.4 to 0.6 mg-ekv/100 of. In the top part of a profile its maximum quantity contains - 2 mg-ekv/100 of In bottom quantity of magnesium sharply decrease to 0 mg-ekv/100 of
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A source: UDODENKO JURY GENNADEVICH. ACCUMULATION And MERCURY DISTRIBUTION In SOILS And PEDOBIONTAH RESERVED TERRITORIES (ON the EXAMPLE of the VORONEZH And OKSKY RESERVES).. 2014

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