Файл	Ном	Сабт карда шуд
Bakhtiyorov Zulfiyor Bakhtiyorovich	RECONSTRUCTION OF THE RIVER FLOW OF THE YAGNOB RIVER ON THE BASIS OF THE TREE RING CHRONOLOGY	38

Authors: Bakhtiyorov Zulfiyor Bakhtiyorovich^1,2,3  - Master of Science in Ecology, Senior Researcher, 

¹Khujand Science Center of the National Academy of Sciences of Tajikistan.

²Institute of International Rivers and Environmental Safety, Yunnan University, People's Republic of China.

³Center for innovative development of science and new technologies of the National Academy of Sciences of Tajikistan.

JOURNAL NUMBER: 3(62). YEAR OF ISSUE: 2022. LANGUAGE OF THE ARTICLE: Russian

ANNOTATION

In this work, was made a reconstruction of river flow based on a tree-ring chronology of 379 years from 1637 to 2016. The reconstruction has a close relationship with hydrological data and have geographical representation. Also, historical facts, spatial correlation and analysis results indicate the reliability of this model. A calibration of regression is 41.4% between 1940 and 1994 where the expected value reaches 99% confidence level. Also, the trend of river flow shows an increase after 1940, which proves global warming and the reconstruction once again confirms this. Since when the temperature rises, it increases the melting of snow cover and glaciers and increases the flow of water in the river. The article also describes the nature of the influence of cyclones and fluctuations on the climate of Central Asia.

KEY WORDS

reconstruction, Yagnob, dendroclimatology, streamflow, Iskandarkul lake

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