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MAPPING OF VEGETATION COVER INDICATORS OF SOILS OF
JIZZAKH REGION USING GIS TECHNOLOGIES (ON THE EXAMPLE
OF TYPICAL IRRIGATED SEROZEM AND NEWLY IRRIGATED
SEROZEM-MEADOW SOILS).
Normatov Yodgor Mamanazarovich
Researcher
phone +99899 476 79 24
Tursunov Shodmon Togʼaevich
(PhD) senior scientist, t.w.
Tursunov@mail.ru
+99893 456-64-76
Institute of soil science and agrochemical research
https://doi.org/10.5281/zenodo.16891794
Annotation
This article describes the vegetation cover indicators of typical irrigated
serozem and newly irrigated serozem-meadow soils distributed in the Jizzakh
region. According to it, it is observed that the vegetation cover indicators of
typical irrigated serozem soils increase towards the mountain slopes and the
upper part of the mountain, while, on the contrary, they are somewhat lower on
newly irrigated serozem-meadow soils, based on a certain regularity. These data
are based on mapping data obtained using GIS technologies.
Keywords:
Soil, irrigated typical, serozem-meadow, NDVI, geoinformation
technologies, remote sensing.
Introduction.
Today, GIS technology is based on a comprehensive,
multidimensional context, and also helps to monitor and manage changes in
various fields, as well as process valuable data in both public and private
organizations[1].
Geographic information technologies are becoming increasingly important in
various fields, including digital maps, geospatial databases, land management,
urban planning, and transportation. [2].
Soil moisture, especially surface moisture, is one of its most important
indicators. The combination of surface soil temperature and vegetation cover
further enhances the ability to obtain information about soil moisture [3].
Remote sensing of soil is essential for monitoring and mapping the existing
vegetation cover on the soil. Today, monitoring the distribution and phenology
of plants based on various vegetation index indicators is the most widely used
THEORETICAL ASPECTS IN THE FORMATION OF
PEDAGOGICAL SCIENCES
International scientific-online conference
131
work.
The Normalized Difference Vegetation Index (NDVI) is one of the most
commonly used indicators [4].
Research object and methods.
The research objects were selected as
typical irrigated serozem soils of the “Laylak Uya” massif of the Zamin district of
the Jizzakh region and newly irrigated serozem-meadow soils distributed in the
“Kazakhstan” massif of the Arnasay district. Analysis based on geographic
information systems was carried out using the ArcGIS program and its
Geostatistical Analyst modules.
Research results and their analysis.
According to it, it was found that the
vegetation cover index of the typical serozem irrigated soils of the Zamin district
is slightly higher. The northern part of the study area is characterized by a high
proportion of areas with a vegetation cover index of 0,23-0,39 while the
southern parts of the area are occupied by areas with a vegetation index of
0,051-0,22. Based on this data, a 1:10,000 scale map of the NDVI index was
created using a GIS program. (Picture-1).
Factors such as the area's vegetation cover, the ability of plants to
photosynthesize and their biological productivity, soil moisture content, and the
relationship of plants to other growth phases also affect NDVI indicators[5].
It was found that the vegetation cover indicators are slightly lower in the soils
distributed in the “Kazakhstan” massif of Arnasay district, where the study was
conducted. In particular, the areas belonging to the vegetation index group of
0,021-0,2 are distinguished by the predominance of areas, while areas with a
vegetation index of 0,38-0,55 are found to be distributed in both the northern
and southern parts of the region. Based on this data, a 1:10,000 scale map of the
NDVI index was created using a GIS program. (Picture-2)
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International scientific-online conference
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Picture-1. Vegetation cover map of typical serozem soils irrigated in
the "Laylak Uya" massif of Zamin district.
Picture-2. Vegetation cover map of newly irrigated serozem-meadow
soils of the "Kazakhstan" massif in Arnasay district.
Conclusion.
In conclusion, it should be noted that the climatic conditions of the
studied regions are different, and the density of vegetation varies sharply
throughout the year. The “Laylak uya” massif is located in a high-altitude region
and is characterized by high soil moisture depending on air temperature, the
amount of annual precipitation is higher than in the “Kazakhstan” massif, the
proportion of areas with a vegetation cover index of 0,23-0,39 in the northern
part is higher, and the content of humus and nutrients in the soil is higher than
in the “Kazakhstan” massif, as determined by the NDVI indicator using the GIS
program.
Both selected areas were divided into groups based on the vegetation
cover indicators on irrigated soils, and a 1:10,000 scale map was created using
GIS software based on the NDVI indicator.
References
1. Nedović-Budić Z. The impact of GIS technology //Environment and planning
B: Planning and Design. – 1998. – Т. 25. – №. 5. – С. 681-692.
THEORETICAL ASPECTS IN THE FORMATION OF
PEDAGOGICAL SCIENCES
International scientific-online conference
133
2. Tao W. Interdisciplinary urban GIS for smart cities: advancements and
opportunities //Geo-spatial Information Science. – 2013. – Т. 16. – №. 1. – С. 25-
34.
3. Xan Y., Vang Y., Zhao Y. Katta Changbai tog'larining tuproq namligini quruqlik
yuzasi harorati va NDVI bo'yicha baholash // IEEE Geoscience va masofaviy
zondlash bo'yicha operatsiyalar. – 2010. – T. 48. – No 6. – 2509-2515-betlar.
4. Vani V., Mandla V. R. Comparative study of NDVI and SAVI vegetation indices
in Anantapur district semi-arid areas //Int. J. Civ. Eng. Technol. – 2017. – Т. 8. –
№. 4. – С. 559-566.
5. Yarashev Q.S. Functional-dynamic relationships of river basin landscapes of
Southern Uzbekistan and their landscape-ecological zoning // Abstract of the
dissertation submitted for the degree of Doctor of Geographical Sciences (DSc). –
Samarkand, 2022. -39 p.
