USING REMOTE SENSING AND GIS TECHNOLOGIES TO ASSESS THE IMPACT OF FOREST DISTURBANCE ON THE HYDROLOGICAL REGIME AT THE SCALE OF WATERSHED BASINS
Authors:
1.
Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences - separate division of the Federal Research Center of the Siberian Branch of the Russian Academy of Sciences
2.
Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences - separate division of the Federal Research Center of the Siberian Branch of the Russian Academy of Sciences
3.
Institut lesa im. V.N. Sukacheva SO RAN
Russian Federation
Russian Federation
Type:
Сonference article
Pages:
from 728
to 735
Published:
27.11.2025
Subject area:
UDC 556
Language:
Russian
Keywords:
cutting, burnt areas, reforestation, vegetation succession, hydrological regime of rivers, catchment area, Lower Tunguska, Angara region
Funding:
The research was carried out with the support of the IL SB RAS basic project "Dynamics of Carbon Cycle Components of Siberian Ecosystems in a Changing Climate" (2024-2026). FWES-2024-0023.
Abstract (English):
This article analyzes the impact of fires and cutting on the hydrological regime of the Nizhnyaya Tunguska and Angara rivers, based on data from the Global Land Cover and Land Use Change resource for 2000–2020. Research showed that forest fires in the Nizhnyaya Tunguska basin do not cause drastic changes in river flow provided that the area of fresh fires is less than 4% of the catchment area. For tributaries of the Angara River, was showed that in river catchments with an area of over 10,000 square kilometers, cutting of up to 2% of the catchment area does not cause drastic fluctuations in runoff, whereas for a river with an area of approximately 4,000 square kilometers, such cutting can affect the hydrological regime.
This article analyzes the impact of fires and cutting on the hydrological regime of the Nizhnyaya Tunguska and Angara rivers, based on data from the Global Land Cover and Land Use Change resource for 2000–2020. Research showed that forest fires in the Nizhnyaya Tunguska basin do not cause drastic changes in river flow provided that the area of fresh fires is less than 4% of the catchment area. For tributaries of the Angara River, was showed that in river catchments with an area of over 10,000 square kilometers, cutting of up to 2% of the catchment area does not cause drastic fluctuations in runoff, whereas for a river with an area of approximately 4,000 square kilometers, such cutting can affect the hydrological regime.
Keywords:
cutting, burnt areas, reforestation, vegetation succession, hydrological regime of rivers, catchment area, Lower Tunguska, Angara region
cutting, burnt areas, reforestation, vegetation succession, hydrological regime of rivers, catchment area, Lower Tunguska, Angara region
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2. P. Potapov, M. C. Hansen, A. Pickens et al. The Global 2000-2020 Land Cover and Land Use Change Dataset Derived From the Landsat Archive: First Results // Frontiers in Remote Sensing. 2022. DOI:https://doi.org/10.3389/frsen.2022.856903.
