THE ASSESSMENT OF SEDIMENT YIELDS OF THE RELATIVLY LARGE RIVERS IN REPUBLIC OF ARTSAKH
Keywords:Republic of Artsakh, runoff, sediment yield, denudation module, correlation coefficients
In this paper, the indicators of sedimental yield of rivers have been analyzed and evaluated for the Artsakh Republic's territory, as well as their relationship with indicators of the territory's forest areas, river runoff and flow characteristics. The value of the denudation module in the territory's main river basins has been calculated, and its relationship with annual river runoff has been revealed. The denudation layer value in the corresponding river basins is calculated. The relationship between the module of river sediment yield and the most recent tectonic movements of the territory has been discovered. The long-term course of the spatial distribution of sedimental yield indicators and change trends have been studied, and mechanisms for the effective use of water resources and reducing the influence of sedimental yield on them have been proposed. The presence of reservoirs has a significant impact on the formation of sedimentary yield in the study area. As a result, the denudation layer capacity is approximately six times greater at the observation points located above the Sarsang and Khachen reservoirs than at the bottom. Accordingly, as a result of our research, we have concluded the following proposals:
- with the exception of sanitary logging, exclude all types of logging nearby big or small river banks;
- in the middle and upper courses of the rivers, it is necessary to repair or rebuild old and build new bounders for sedimental yield to extend the usage of the small hydroelectric power plants, as well as to protect reservoirs of irrigation systems (which are already old and in an emergency situation) from rapid sludge processes;
- regarding the service life of pumping stations: for the purpose of the normal operation of water-technical facilities, it is necessary to prohibit the transfer of waste to river systems which is generated as a result of human economic activity.
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