The influence of climatic factors on desertification processes on the example of the Terek-Kuma Lowland
https://doi.org/10.32786/2071-9485-2024-01-15
Abstract
Summary. The article presents the results of calculating the correlation between climatic factors and the dynamics of desertification. The data indicates an inverse and moderately strong correlation of -0.61. This means that as the GTK coefficient decreases, desertification area tends to increase. Conversely, during 2016 and 2019 when the GTK coefficient increased, there was a decrease in desertification area.
Introduction. Desertification is one of the main environmental problems in the south of Russia. To successfully combat desertification, it is required to identify all possible factors that affect the dynamics of land desertification. The article presents data on changes in the area of desertification, a study was conducted to identify the correlation between climate data and the area of desertification.
Object. territory of the Terek Kuma lowland.
Materials and methods. According to the research program, an analysis of the images of satellite images Lansat 8, 9 was carried out using the classification method "without training" according to the value of spectral-zonal channels. The work was carried out using ArcGIS PRO software. As a result, synthesized images of the study area were obtained, in which areas of desertification were identified and vectorized. On the basis of vector maps developed from multi-temporal images, a study of the dynamics of desertification was carried out. The area of desertification was calculated by years. The change during the study of climatic factors, in particular precipitation, was studied. The calculation of desertification areas from 2013 to 2021 was carried out. The calculation of the SCC index Selyaninova G. T. for the period 2013-2021. The correlation between the moistening of the territory by means of the GTK index and the area of desertification was calculated.
Results and conclusions. As a result, an inversely weak correlation of - 0.61 was revealed. With a decrease in the GTK coefficient, an increase in the area of desertification is observed. In 2016, 2019, when an increase in the value of the GTK coefficient was observed, a decrease in the area of desertification was also observed. There is an inverse correlation between the amount of precipitation and the dynamics of desertification, but there are other factors influencing this process.
Supporting agencies: The work was carried out within the framework of the state task of the Federal Research Center for Agroecology of the Russian Academy of Sciences No. 122020100405-9 "Cartographic modeling of the state, functioning and dynamics of processes of desolate territories using information technologies"
About the Author
V. A. Romanov
Federal Research Center of Agroecology of the Russian Academy of Sciences
Russian Federation
Russian Federation
Romanov Vladislav Aleksandrovich, Junior Researcher, Laboratory of Geoinformation Modeling and Mapping of Agroforestry Landscapes
Russian Federation, 400062, Volgograd, Universitetskiy Ave., 97
References
1. Abdurzakova A. S., Taisumov M. A., Magomadova R. S., Astamirova M. A., Khasueva B. A., Kushalieva Zh. A., Israilova S. A. Analysis of semi-desert vegetation of the territory of the Tersko-Kuma lowland in different environmental conditions. Bulletin of KrasGAU. 2013. No. 6. https://cyberleninka.ru/article/n/analiz-rastitelnosti-polupustynterritorii-tersko-kumskoy-nizmennosti-v-raznyh-ekologicheskih-usloviyah.
2. Abdusalamova R. R., Hasanov A. R. Soil resources of the Republic of Dagestan. Bulletin of SPI. 2019. No. 4 (32). https://cyberleninka.ru/article/n/pochvennye-resursy-respubliki-dagestan.
3. Hasanov G. N., Asvarova T. A., Gadzhiev K. M., Abdulayeva A. S., Salikhov Sh. K., Bashirov R. R. Dynamics of climatic conditions of the Tersko-Kuma lowland of the Caspian Sea over the last 120 years. South of Russia: ecology, development. 2013. No. 4. https://cyberleninka.ru/article/n/dinamika-klimaticheskih-usloviy-tersko-kumskoynizmennosti-prikaspiya-za-poslednie-120-let.
4. Kulik K. N., Rulev A. S., Yuferev V. G. Geoinformation analysis of desertification dynamics on the territory of the Astrakhan region. Arid ecosystems. 2015. No. 3 (64). https://cyberleninka.ru/article/n/geoinformatsionnyy-analizdinamiki-opustynivaniya-na-territorii-astrahanskoy-oblasti.
5. Romanov V. A. Comparison of data classification methods for satellite monitoring of the desertification process. Scientific and Agronomic journal. 2022. No. 2 (117). https://cyberleninka.ru/article/n/sravnenie-sposobovklassifikatsii-dannyh-pri-sputnikovom-monitoringe-protsessa-opustynivaniya.
6. Savich V. I., Saidov A. K., Shnee T. V., Rami K. Digression, fertility decline and technogenic loads as factors of soil desertification. Izvestiya TSKHA. 2011. No. 2. https://cyberleninka.ru/article/n/digressiya-padenieplodorodiya-i-tehnogennye-nagruzki-kak-faktory-opustynivaniya-pochv.
7. Selyaninov G. T. On agricultural climate assessment. Proceedings of Agricultural Meteorology. L.: Hydrometeoizdat, 1928. V. 20. Pp. 165-177.
8. Taisumov M. A., Astamirova M. L., Magomadova R. S., Abdurzakova A. S., Khasueva B. A., Omarkhadzhieva F. S., Israilova S. A., Kushalieva J. A. Phytocenotic analysis of the flora of the Tersko-Kuma lowland. Regional geosystems. 2012. № 21-1 (140). https://cyberleninka.ru/article/n/fitotsenoticheskiy-analiz-flory-tersko-kumskoy-nizmennosti.
9. Teymurov A. A., Satueva L. L., Mirazaev D. M., Soltanmuradova Z. I. New floral finds for Dagestan. South of Russia: ecology, development. 2013. No. 4. https://cyberleninka.ru/article/n/novye-floristicheskie-nahodki-dlya-dagestana.
10. Timizheva O. Z., Karashaeva A. S. Remote sensing of the earth. Economics and society. 2018. No. 3 (46). https://cyberleninka.ru/article/n/distantsionnoe-zondirovanie-zemli.
11. Shabanov D. I., Iolin M. M., Borzova A. S., Agoshkova E. V. The use of GIS technologies and remote sensing methods in the analysis of the spatial distribution of desertification in the Northern Caspian. Natural systems and resources. 2014. No. 4 (10). https://cyberleninka.ru/article/n/ispolzovanie-gis-tehnologiy-i-metodov-dzz-pri-analizeprostranstvennogo-raspredeleniya-opustynivaniya-na-territorii-severnogo.
12. Shinkarenko S. S., Bartalev S. A. Consequences of dust storms in the south of the European part of Russia in September-October 2020. Modern problems of remote sensing of the Earth from space. 2021.
Review
For citations:
Romanov V.A. The influence of climatic factors on desertification processes on the example of the Terek-Kuma Lowland. Title in english. 2024;(1 (73)):143-149. (In Russ.) https://doi.org/10.32786/2071-9485-2024-01-15
Views:
40
Email this article 