首页|Mapping the territories of the mountain-foothill zone of Tajikistan exposed to mudflows

Mapping the territories of the mountain-foothill zone of Tajikistan exposed to mudflows

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In recent years,mudflows have emerged as a significant threat to infrastructure and lives,exhibiting increased frequency and severity.This study collectively addresses the rising threat of natural hazards,specifically mudflows in mountain-foothill zones in Tajikistan,utilizing UAV and remote sensing technologies to monitor their impact.From 2020 to 2023,we employed a QC-2 Micro UAV and a DJI Phantom 4 quadcopter to capture high-resolution aerial imagery across multiple affected districts,supplemented by pre-and post-event Sentinel-2 images analyzed using the Normalized Difference Water Index(NDWI)and Normalized Difference Vegetation Index(NDVI).Our analysis revealed that 49 districts and cities experienced significant mudflow events,resulting in estimated damages and economic losses of 30.2 million USD,with particularly severe impacts noted in the Khuroson,Tojikobod,Vakhsh,Panjakent,Lakhsh,and Varzob.The composition of mudflows in the six studied areas predominantly consisted of clay,with some regions featuring mudstone and a few exhibiting a mixture of both materials.Our findings indicate the predominance of rain-induced mudflows in foothill areas,contrasting with rain-snow,glacial,and lake-outburst-induced mudflows in mountainous regions.This underscores the urgent need for effective disaster risk management strategies in vulnerable locations.Integrating UAV and remote sensing technologies provides crucial information for analyzing damages,identifying vulnerable areas,and advising emergency response efforts,thereby enhancing disaster risk management in Tajikistan.

DisasterMudflowsRemote sensingUnmanned aerial vehiclesTajikistan

SAFAROV Mustafo、KANG Shichang、FAZYLOV Ali、GULAYOZOV Majid、NAVRUZSHOEV Hofiz、BANERJEE Abhishek、MAMADJANOV Yunus

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Key Laboratory of Cryospheric Science and Frozen Soil Engineering,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China

Research Center for Ecology and Environment of Central Asia(Dushanbe),Dushanbe 734063,Tajikistan

University of Chinese Academy of Sciences,Beijing 100049,China

Institute of Water Problems,Hydropower and Ecology of the National Academy of Sciences of Tajikistan,Dushanbe 734042,Tajikistan

Mountain Societies Research Institute,University of Central Asia,Dushanbe 734000,Tajikistan

State Scientific Institution"Center for Research of Glaciers of the National Academy of Sciences of Tajikistan",Dushanbe 734025,Tajikistan

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2025

10.1007/s11629-024-9020-2

山地科学学报(英文版)
中国科学院水利部成都山地灾害与环境研究所

山地科学学报(英文版)

影响因子：0.228
ISSN：1672-6316
年,卷(期)：2025.22(1)