Aridization of the climate in the Western Caspian region as a factor in reducing the productivity of pasture phytocenoses
Abstract
Background. The semi-desert zone of the Western Caspian Sea is subject to severe climatic changes during the growing season of crops, including on natural pasture lands, which causes desertification of territories. The object of consideration of the arid territory of the Western Caspian Sea for climate aridization is the Neftekumsky district, where the factors of abnormal climatic changes characteristic of this zone are most pronounced, affecting, among other things, the productivity of pasture phytocenoses.
The purpose to study the dynamics of changes in climatic conditions in the Western Caspian region with an assessment of the decrease in productivity of pasture phytocenoses.
Results. The results of the analysis of climate change for April - October of the 31-year research period (1993-2023) showed an average annual temperature increase of 0.05 °C with its most intense rate from 2018 to 2023, amounting to 0.11 °C. A similar trend is observed in terms of precipitation, the annual decrease from 2018 to 2023 is 11.8 mm. There is an intensive decrease in the value of the HTC in the period from April to October 2011-2023 at a rate of 0.03 units per year, which indicates an intensive aridization of the climate. Analysis of the data from the register of droughts showed that if in the first decade (1993-2002) periods of severe droughts were observed in 34.3% of cases, then in the last decade (2014-2023) – in 47.1%, therefore, an intensive process of aridization is observed.
Conclusion. An analysis of the data of droughts of the 31-year period by month (April – October) showed that the most severe drought is observed in July (51.6% of years) and August (54.8% of years). If in August 1993-2002 severe droughts were observed in 5 cases of certain years, then in the period 2014-2023 there were 9 units.
Significant fluctuations in pasture productivity have been established in the years of research that differ in agro–climatic conditions (2018-2023). In a favorable year 2021, with a value of 0.64 HTC in April and May, and 1.86 in June, the productivity of wormwood and cereal pasture feed was 1.18 t/ha, in a critically abnormal 2022 with an even 0.2 – 0.25 HTC of April - May, only 0.53 t/ha. A similar pattern was established for ephemeral-cereal and mixed-grass pastures, where productivity decreased by 0.52 and 0.53 t/ha, respectively, compared with 2021.
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Антонов, С.А. & Каторгин, И.Ю. (2021). Картографирование характеристик изменения климата в Ставропольском крае. Интеркарто. Интергис, 27(3), 171-182. https://doi.org/10.35595/2414-9179-2021-3-27-171-182 EDN: https://elibrary.ru/lpbymu
Бадахова, Г.Х. & Кнутов, А.В. (2007). Ставропольский край: современные климатические условия. Ставрополь: ГУП ИК «Региональные сети связи». 272 с. ISBN: 978-5-91228-012-2 EDN: https://elibrary.ru/qkglcj
Бананова, В.А., Лазарева, В.Г. & Петров, К.М. (2021). Тенденции процессов опустынивания в северо-западной части Прикаспийской низменности. Геология, география и глобальная энергия, 1(80), 77-86. EDN: https://elibrary.ru/imirkw
Васильев, Ю.И., Волошенкова, Т.В. & Овечко, Н.Н. (2013). Методология прогноза варьирования урожая зерновых культур в агролесоландшафте в связи с нестабильностью климатических характеристик. Доклады Российской академии сельскохозяйственных наук, 4, 54-57. EDN: https://elibrary.ru/qcnhrj
Волошенкова, Т.В., Антонов, С.А., Калашникова, А.А. & Перегудов, С.В. (2023). Тенденции изменения климата в засушливых районах Ставропольского края. Достижения науки и техники АПК, 37(11), 5-11. https://doi.org/10.53859/02352451_2023_37_11_5 EDN: https://elibrary.ru/qehdpn
Второй оценочный доклад Росгидромета об изменениях климата и их последствиях на территории Российской Федерации (2014). М.: Росгидромет. 1008 с. ISBN: 978-5-9631-0322-7
Глобальные проявления изменений климата в агропромышленной сфере (2004) / Под ред. акад. РАСХН А.Л. Иванова. М. 332 с.
Дедова, Э.Б., Гольдварг, Б.А. & Цаган-Манджиев, Н.Л. (2020). Деградация земель Республики Калмыкия: проблемы и пути их восстановления. Аридные экосистемы, 26(2), 63-71. EDN: https://elibrary.ru/pqelox
Закс, А. (1976). Статистическое оценивание. М.: Изд-во Статистика. 598 с.
Захарян, Ю.Г., Комаров, А.А. & Янко, Ю.Г. (2023). Оценка дифференциации агротехнологий по трём градациям с учётом глобального изменения климата. Современные проблемы дистанционного зондирования земли из космоса, 20(3), 67-70. https://doi.org/10.21046/2070-7401-2023-20-3-61-70 EDN: https://elibrary.ru/bfskie
Золотокрылин, А.Н., Черенкова, Е.А. & Титкова, Т.Б. (2020). Аридизация засушливых земель европейской части России и связь с засухами. Известия Российской академии наук. Серия географическая, 2, 207-217. https://doi.org/10.31857/S258755662002017X EDN: https://elibrary.ru/sfckus
Ксенофонтов, М.Ю. & Ползиков, Д.А. (2020). К вопросу о влиянии климатических изменений на развитие сельского хозяйства России в долгосрочной перспективе. Проблемы прогнозирования, 3(180), 82-92. EDN: https://elibrary.ru/fsisnb
Манаенков, А.С. & Рыбашлыкова, Л.П. (2023). Эколого-биологические аспекты кустарниковой мелиорации деградированных пастбищ на бугристо-увалистых комплексах песчаных земель Прикаспия. Устойчивое развитие горных территорий, 15(2), 246-255. https://doi.org/10.21177/1998-4502-2023-15-2-246-255 EDN: https://elibrary.ru/rzrfbx
Павлова, В.Н., Переведенцев, Ю.П., Караченкова, А.А., Тагиров, M.Ш. & Мирсаева, Н.А. (2023). Оценка агроклиматических ресурсов и урожайности яровой пшеницы в Республике Татарстан. Метеорология и гидрология, 1, 90-102. https://doi.org/10.52002/0130-2906-2023-1-90-102 EDN: https://elibrary.ru/hnahvo
Попова, В.В., Бокучава, Д.Д. & Матвеева, Т.А. (2022). Экстремальная засуха на восточно-европейской равнине в период потепления середины ХХ столетия: климатические характеристики и аналоги в условиях современного климата. Аридные экосистемы, 29(2), 3-11. https://doi.org/10.24412/1993-3916-2023-2-3-11 EDN: https://elibrary.ru/cailxd
Сажин, А.Н., Петров, С.А., Погосян, Н.В., Васильев, Ю.И., Волошенкова, Т.В., Козина, О.В. & Моников, С.Н. (2006). Взаимосвязь внутривековых изменений влажности со сменой эпох циркуляции и ее отражение в природных процессах Атлантико-европейского сектора Евразии. Труды Российской академии наук. Серия географическая, 1, 26-34.
Чернокульский, А.В., Елисеев, А.В., Козлов, Ф.А., Коршунова, Н.Н., Курганский, М.В., Мохов, И.И., Семенов, В.А., Швец, Н.В., Шихов, А.Н. & Ярынич, Ю.И. (2022). Опасные атмосферные явления конвективного характера в России: наблюдаемые изменения по различным данным. Метеорология и гидрология, 5, 27-41. https://doi.org/10.52002/0130-2906-2022-5-27-41 EDN: https://elibrary.ru/lxtplq
Brückner, E. (1890). Climate fluctuations since 1700: in addition to remarks on the climate fluctuations of the diluvial period. Geographische Abhandlungen, p. 325.
Gourdji, S. M., Sibley, A. M., & Lobell, D. B. (2013). Global crop exposure to critical high temperatures in the reproductive period: historical trends and future projections. Environmental Research Letters, 8(2), 024041. https://doi.org/10.1088/1748-9326/8/2/024041
Hidalgo-Galvez, M. D., Matías, L., Cambrollé, J., et al. (2023). Impact of climate change on pasture quality in Mediterranean dehesas subjected to different grazing histories. Plant and Soil. https://doi.org/10.1007/s11104-023-05986-9 EDN: https://elibrary.ru/tkytdu
Liu, C., & Allan, R. P. (2013). Observed and simulated precipitation responses in wet and dry regions 1850-2100. Environmental Research Letters, 8, 034002. https://doi.org/10.1088/1748-9326/8/3/034002 EDN: https://elibrary.ru/sqghb
Manaenkov, A. S., Rybashlykova, L. P., Sivtseva, S. N., & Makhovikova, T. F. (2023). Silvopastoral transformation of desert lands in the Caspian Sea region. Arid Ecosystems, 13(1), 11-19. https://doi.org/10.1134/S2079096123010080 EDN: https://elibrary.ru/kgkatb
Marvel, K., Cook, B., Bonfils, C., et al. (2019). Twentieth-century hydroclimate changes consistent with human influence. Nature, 569(7754), 59-65. https://doi.org/10.1038/s41586-019-1149-8
Rybashlykova, L. P., Sivceva, S. N., & Makhovikova, T. F. (2023). Relationship between hydrothermal coefficient (HTC) and productivity of pastures in the arid zone of Northwestern Caspian Sea. Journal of Agrometeorology, 25(3), 454-457. https://doi.org/10.54386/jam.v25i3.2220 EDN: https://elibrary.ru/wwnzce
Zolotokrylin, A. N., Cherenkova, E. A., & Titkova, T. B. (2018). Bioclimatic subhumid zone of Russian plains: droughts, desertification, and land degradation. Arid Ecosystems, 8(1), 7-12. https://doi.org/10.1134/S2079096118010122 EDN: https://elibrary.ru/xxrtlf
References
Antonov, S. A., & Katorgin, I. Yu. (2021). Mapping of climate change characteristics in the Stavropol Territory. Interkarto. Intergis, 27(3), 171-182. https://doi.org/10.35595/2414-9179-2021-3-27-171-182 EDN: https://elibrary.ru/lpbymu
Badakhova, G. Kh., & Knutov, A. V. (2007). Stavropol Territory: Modern climatic conditions. Stavropol: State Unitary Enterprise IC “Regional Communication Networks”. 272 p. ISBN: 978-5-91228-012-2 EDN: https://elibrary.ru/qkglcj
Bananova, V. A., Lazareva, V. G., & Petrov, K. M. (2021). Trends of desertification processes in the northwestern part of the Caspian lowland. Geology, Geography and Global Energy, 1(80), 77-86. EDN: https://elibrary.ru/imirkw
Vasiliev, Yu. I., Voloshenkova, T. V., & Ovechko, N. N. (2013). Methodology for forecasting grain crop yield variation in agroforest landscape in connection with climatic characteristics instability. Reports of the Russian Academy of Agricultural Sciences, 4, 54-57. EDN: https://elibrary.ru/qcnhrj
Voloshenkova, T. V., Antonov, S. A., Kalashnikova, A. A., & Peregudov, S. V. (2023). Climate change trends in arid regions of the Stavropol Territory. Achievements of Science and Technology of Agro-Industrial Complex, 37(11), 5-11. https://doi.org/10.53859/02352451_2023_37_11_5 EDN: https://elibrary.ru/qehdpn
Second assessment report of Roshydromet on climate change and its consequences in the Russian Federation (2014). Moscow: Roshydromet. 1008 p. ISBN: 978-5-9631-0322-7
Global manifestations of climate change in the agro-industrial sector (2004). Ed. by Acad. RASKHN A. L. Ivanov. Moscow. 332 p.
Dedova, E. B., Goldvarg, B. A., & Tsagan-Mandzhiev, N. L. (2020). Land degradation in the Republic of Kalmykia: problems and ways of their restoration. Arid Ecosystems, 26(2), 63-71. EDN: https://elibrary.ru/pqelox
Zaks, A. (1976). Statistical estimation. Statistics Publishing House. 598 p.
Zakharyan, Yu. G., Komarov, A. A., & Yanko, Yu. G. (2023). Assessment of agrotechnology differentiation by three gradations considering global climate change. Modern Problems of Remote Sensing of Earth from Space, 20(3), 67-70. https://doi.org/10.21046/2070-7401-2023-20-3-61-70 EDN: https://elibrary.ru/bfskie
Zolotokrylin, A. N., Cherенкова, E. A., & Titkova, T. B. (2020). Aridization of arid lands in the European part of Russia and its connection with droughts. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya, 2, 207-217. https://doi.org/10.31857/S258755662002017X EDN: https://elibrary.ru/sfckus
Ksenofontov, M. Yu., & Polzikov, D. A. (2020). On the impact of climate changes on the development of agriculture in Russia in the long term. Problems of Forecasting, 3(180), 82-92. EDN: https://elibrary.ru/fsisnb
Manaenkov, A. S., & Rybashlykova, L. P. (2023). Ecological and biological aspects of shrubland reclamation of degraded pastures on hummocky-ridge complexes of Caspian sandy lands. Sustainable Development of Mountain Territories, 15(2), 246-255. https://doi.org/10.21177/1998-4502-2023-15-2-246-255 EDN: https://elibrary.ru/rzrfbx
Pavlova, V. N., Perevedentsev, Yu. P., Karachenkova, A. A., Tagirov, M. Sh., & Mirsaeva, N. A. (2023). Assessment of agroclimatic resources and spring wheat yield in the Republic of Tatarstan. Meteorology and Hydrology, 1, 90-102. https://doi.org/10.52002/0130-2906-2023-1-90-102 EDN: https://elibrary.ru/hnahvo
Popova, V. V., Bokuchava, D. D., & Matveeva, T. A. (2022). Extreme drought in the East European Plain during the warming period of the mid-20th century: climatic characteristics and analogs in the current climate. Arid Ecosystems, 29(2), 3-11. https://doi.org/10.24412/1993-3916-2023-2-3-11 EDN: https://elibrary.ru/cailxd
Sazhin, A. N., Petrov, S. A., Pogosyan, N. V., Vasiliev, Yu. I., Voloshenkova, T. V., Kozina, O. V., & Monikov, S. N. (2006). Relationship between intra-century humidity changes and circulation epochs and its reflection in natural processes of the Atlantic-European sector of Eurasia. Proceedings of the Russian Academy of Sciences. Geographical Series, 1, 26-34.
Chernokulsky, A. V., Eliseev, A. V., Kozlov, F. A., Korshunova, N. N., Kurgansky, M. V., Mokhov, I. I., Semenov, V. A., Shvets, N. V., Shikhov, A. N., & Yarynich, Yu. I. (2022). Convective atmospheric hazards in Russia: observed changes according to various data. Meteorology and Hydrology, 5, 27-41. https://doi.org/10.52002/0130-2906-2022-5-27-41 EDN: https://elibrary.ru/lxtplq
Brückner, E. (1890). Climate fluctuations since 1700: in addition to remarks on the climate fluctuations of the diluvial period. Geographische Abhandlungen, p. 325.
Gourdji, S. M., Sibley, A. M., & Lobell, D. B. (2013). Global crop exposure to critical high temperatures in the reproductive period: historical trends and future projections. Environmental Research Letters, 8(2), 024041. https://doi.org/10.1088/1748-9326/8/2/024041
Hidalgo-Galvez, M. D., Matías, L., Cambrollé, J., et al. (2023). Impact of climate change on pasture quality in Mediterranean dehesas subjected to different grazing histories. Plant and Soil. https://doi.org/10.1007/s11104-023-05986-9 EDN: https://elibrary.ru/tkytdu
Liu, C., & Allan, R. P. (2013). Observed and simulated precipitation responses in wet and dry regions 1850-2100. Environmental Research Letters, 8, 034002. https://doi.org/10.1088/1748-9326/8/3/034002 EDN: https://elibrary.ru/sqghb
Manaenkov, A. S., Rybashlykova, L. P., Sivtseva, S. N., & Makhovikova, T. F. (2023). Silvopastoral transformation of desert lands in the Caspian Sea region. Arid Ecosystems, 13(1), 11-19. https://doi.org/10.1134/S2079096123010080 EDN: https://elibrary.ru/kgkatb
Marvel, K., Cook, B., Bonfils, C., et al. (2019). Twentieth-century hydroclimate changes consistent with human influence. Nature, 569(7754), 59-65. https://doi.org/10.1038/s41586-019-1149-8
Rybashlykova, L. P., Sivceva, S. N., & Makhovikova, T. F. (2023). Relationship between hydrothermal coefficient (HTC) and productivity of pastures in the arid zone of Northwestern Caspian Sea. Journal of Agrometeorology, 25(3), 454-457. https://doi.org/10.54386/jam.v25i3.2220 EDN: https://elibrary.ru/wwnzce
Zolotokrylin, A. N., Cherenkova, E. A., & Titkova, T. B. (2018). Bioclimatic subhumid zone of Russian plains: droughts, desertification, and land degradation. Arid Ecosystems, 8(1), 7-12. https://doi.org/10.1134/S2079096118010122 EDN: https://elibrary.ru/xxrtlf
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