Volume 02 Issue 11-2022
1
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
Soil properties can vary to some extent depending on the geomorphological conditions in which they are located. This
is due to the diversity of parent rocks, layering and mechanical composition of the soil. The article presents and
compares the properties of irrigated gray-meadow, meadow and marsh-meadow soils located on terraces I, II, III of
the Syrdarya River. Based on the results obtained, recommendations are given for the rational placement of plants.
KEYWORDS
Terrace, proluvial, alluvial, loess deposits, ground water level, soil salinity, mechanical composition, humus, nitrogen,
phosphorus, potassium, dry residue, sulfate, chlorine.
INTRODUCTION
Scientists from different countries have published
scientific data on changes in soil properties depending
on the geomorphological position. However, the data
obtained differ depending on the unique natural and
climatic conditions of the regions.
Research Article
PROPERTIES OF SOILS LOCATED IN DIFFERENT GEOMORPHOLOGICAL
CONDITIONS
Submission Date:
November 01, 2022,
Accepted Date:
November 10, 2022,
Published Date:
November 18, 2022
Crossref doi:
https://doi.org/10.37547/ajahi/Volume02Issue11-01
Shakhobiddin M. Turdimetov
Doctor of Biological Sciences, (DSc) Head of Soil Science Department at Gulistan State University, Uzbekistan
Mokhinur M. Musurmanova
Phd Student Gulistan State University, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajahi
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 11-2022
2
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
In the researches of Y.Wang, Y.He, J.Zhan, Z.Li [1], it
was determined that the spatial structure of soil
particles is different depending on the location of the
terrace of the river bank. He compared the properties
of soils distributed in the foothills, central alluvial
plains, and eastern coastal plains. According to the
geomorphological conditions of the soil distributed on
the river bank, the mechanical composition of the soil
determined the distribution of sand, sand, loam and
clay particles.
According to E.A.Batrachenko [2], soil properties
mainly depend on the parent rocks that form the soil.
The strength of anthropogenic impact on soil
properties
also
directly
depends
on
the
geomorphological conditions of the soil. The different
topography of the Kurs region has a direct impact on
erosion processes. It is noted that the ecological
conditions
of
soils
located
in
different
geomorphological conditions are also different.
G.V.Dobrovolsky,
P.N.Balabko,
N.V.Stasyuk,
E.P.Bykova [3] gave information about the specific
characteristics and properties of alluvial soils. It has
been proven that the soils of the river banks have high
biogenicity and intensive soil formation processes.
N.A.Shaporina,
A.V.Chichulin
[4]
and
M.V.Konyushkova, B.D.Abaturov [5] studied the effect
of microrelief on the hydrothermal condition of the soil
cover. It is noted that the hydrothermal conditions of
the soils located below in terms of microrelief are rich
in moisture and relatively cold.
S.S.Gudimovich [6] expressed his opinion on the
location, naming and description of river terraces. He
gave a description of soil properties depending on the
location of each terrace, analyzed the data of various
scientists. The location schemes of the terraces and
information on their description are presented.
L.A.Yablonsky [7] provided information on the history
of studying the soils of river banks. As a result of the
soil being constantly wet, the process of glaciation
occurred. This was also shown in the morphological
characteristics of soils. As a result of the gliding
process, the structure of the soil is disturbed, and the
number of useful microorganisms decreases.
Studies have been conducted on the different
properties of the soils located in different parts of the
Mirzachol oasis and the changes in the soil as a result
of human activities. It was noted that the properties of
the soils in the old and newly developed parts of
Mirzachol differ from each other [8-13].
Research methods. Special experiments were
conducted to study the properties of soils located on
different terraces of the Syrdarya River. For this, “key
sites” were selected from the areas located on the I, II
and III terraces of the river. When choosing these
areas, they tried to be typical for this terrace. Soil
cuttings were plac
ed on selected “key sites”. Soil
morphological features were studied and compared.
Soil samples were taken from soil sections and
analyzed. Soil granulometric composition, total humus,
nitrogen, phosphorus, potassium, mobile phosphorus
and potassium, water absorption were analyzed.
Results and discussions. In order to study the
properties of soils located on different terraces of the
Syrdarya river, two massifs in Gulistan district were
selected: massifs named “Boyovut” and “Uch
Qahramon”. Below is informa
tion about the
description and mechanical composition, agrochemical
parameters of the soils located on the river terrace of
these massifs.
It consists of newly irrigated marsh-meadow soils
located on the upper terrace I of the Syrdarya,
Volume 02 Issue 11-2022
3
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
consisting of alluvial deposits of the 26th cross-section
layer.
The granulometric composition of the soil consists of
medium sand
(Table 1). The granulometric composition of the soil is
dominated by large dust particles typical of all gray
soils. The thickness of the humus layer is 65 cm, the
amount of humus in this layer is 1.30% in the 0-30 cm
layer, 0.85% in the 30-50 cm layer, the amount of mobile
phosphorus is 8.5 in the 0-30 cm layer, 7.0 in the 30-50
cm layer mg/kg, and exchangeable potassium is 80 and
120 mg/kg, respectively. The clayey layer is found at 100
cm. The level of ground waters is 125 cm.
Table 1
Granulometric composition of the soil
№
cross
section
Layer
thickness, in
cm
Fractions of mechanical composition , %
1-
0,25
0,25-
0,1
0,1-
0,05
0,05-
0,01
0,01-
0,005
0,005-
0,001
˂0,001
Aggregate
of physical
clay , %
It consists of layered alluvial deposits. Freshly irrigated swamp-meadow soils located on the
first terrace of the Syrdarya
26
0-35
0,5
0,2
13,6 43,3
22,4
12,1
7,9
42,4
35-45
0,4
0,3
23
35,2
11,8
20,9
8,4
41,1
45-60
0,3
0,3
19
46,3
22,5
7,4
4,2
34,1
60-82
0,5
0,4
20,9 36,3
22,8
14,2
4,9
49
82-100
0,3
0,2
22,3 33,9
24,2
17,2
1,9
43
100-125
0,1
0,1
20,5 38,6
16,5
16,4
7,8
20
It consists of irrigated meadow soils, located on the II - above-ground terrace of the Syr
Darya, consisting of layered alluvial deposits.
33
0-40
0,5
0,1
17,7 31,7
21,4
18,8
9,8
50
40-60
0,8
0,2
16,8 35,9
24,1
13,2
9
39,3
60-80
0,1
0,1
15,8 37,3
18,5
18,3
9,9
43,7
80-100
1,8
0,2
28,5
33
15,7
13,4
7,7
36,5
130-160
0,4
0,5
20,8 49,9
10,7
9,6
8,1
28,4
Volume 02 Issue 11-2022
4
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
The 33rd cross-section consists of irrigated meadow soils located on the II-serum terrace of the Syr Darya, consisting
of layered alluvial deposits.
The mechanical composition of the soil consists of heavy and light sand. The thickness of the humus layer is 65 cm,
the amount of humus in this layer is 1.37%. The clayey layer is found at 120 cm. The level of ground waters is 200 cm.
Cross-section 34 consists of irrigated gray-meadow soils located on the III-overland terrace of the Syr Darya, consisting
of alluvial-proluvial and loess deposits.
Table 2
Nutrients in the soil
It consists of irrigated gray-meadow soils located on the III-overland terrace of the Syrdarya,
consisting of alluvial-proluvial and loess deposits.
34
0-35
0,8
0,1
18,3 40,1
18,3
11,8
10,6
40,70,
35-50
1,6
0,1
14,7 38,0
15,6
19,6
10,4
45,6
50-75
0,3
0,3
12,6 38,9
16,4
18,0
13,5
47,90
75-100
15,9
0,6
16,4 41,1
9,7
9,8
6,5
26,00
140-200
0,7
0,2
20,9 36,0
28,3
8,4
3,5
40,20
№
Depth, cm
N
Gross, %
Active, mg/kg
P
2
O
5
K
2
O
P
2
O
5
K
2
O
2
6
0-30
0,168
0,153
1,250
8,5
80,0
30-50
0,100
0,127
1,18
7,0
120,0
33
0-30
0,114
0,130
1,280
12,2
100,0
30-50
0,148
0,119
1,56
8,0
60,0
34
0-30
0,134
0,150
1,360
15,2
220,0
30-50
0,114
0,144
1,280
8,5
50,0
Volume 02 Issue 11-2022
5
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
The mechanical composition of the soil consists of
medium and light sand. The thickness of the humus
layer is 60 cm, the amount of humus in this layer is
1.40%, the amount of mobile phosphorus is 15.2 mg/kg
in the 0-30 cm layer, and 8.5 mg/kg in the 30-50 cm
layer, and exchangeable potassium is 220 in the 0-30
cm layer. In the 30-50 cm layer, it is 50 mg/kg. The
density is average. There is no clay layer. The level of
ground waters is 255 cm.
If one pays attention to the sections located on
different terraces of the Syrdarya, first of all, one can
see the difference in the depth of seepage waters in
them. In the cross-section located on the I-terrace of
the Syr Darya, the level of seepage water is higher,
while in the cross-section located on the III-upper
terrace, it is about 2.5 meters. Correspondingly, the
depth of meeting the gley layer also differs.
Also, soil agrochemical properties have different
indicators in three sections. The amount of total
nitrogen in section 26 is relatively higher than other
sections. This is related to the humus and nitrogen
content of grassland soils. The amount of total
phosphorus and potassium was distributed almost
uniformly in all three soil sections. But the indicators of
the 3 sections differ from each other in terms of the
amount of mobile phosphorus. It is 7-8.5 mg/kg in cut
26, which is very low. This is related to the process of
soil grazing. The soil located on the second and third
terraces has a relatively higher index in the sections.
The amount of mobile phosphorus is low in grassy soils
due to the fact that the binding force of phosphorus is
intensive.
CONCLUSIONS
The experiment found that the properties of soils
located in the same area, but located on different river
terraces, are also different. These differences are
primarily manifested in the morphological features of
the soil. Meadow soils are relatively darker in color
because they are richer in humus than other soils. Due
to constant moisture, gleying is observed, as a result of
which a bluish gley layer forms on the soil profile. In
addition, differences in the mechanical composition of
the soil, salinity and agrochemical parameters can be
observed. Given the above, it is recommended to plant
moisture-loving plants on the soil of the I-terrace of the
river.
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Y.Wang, Y.He, J.Zhan, Z.Li.Dentification of soil
particle
size
distribution
in
different
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E.A. Batrachenko. Investigation of the soil
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(2021)
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Dobrovolsky G.V., Balabko P.N., Stasyuk N.V.,
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N. A. Shaporina, A. V. Chichulin, Influence of the
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5.
Konyushkova M.V., Abaturov B.D. Features of
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solonetzic complex at the late stages of
Volume 02 Issue 11-2022
6
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
11
Pages:
01-06
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
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СРЕДЫ И НАУЧНО
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