The Water Regime of the Torey Lakes Under Anthropogenic Influence

Abstract

The Torey lakes, located in the Transbaikal Territory on the border with the Mongolian People's Republic, are a unique natural reservoir. They have an unstable hydrological regime due to climate change. The main inflow of the Torey Lakes is the transboundary Ul’dza River. A hydraulic structure is being built on the Mongolian part of this river, the activity of which can lead to significant changes in the water regime of the Torey lakes. Based on the proposed model of the water balance of the Torey lakes, the hydrological regime of these lakes for the period from 1965 to 2018 is characterized. Changes in the level of the Torey Lakes are analyzed, including taking into account the activity of a hydraulic structure. Changes in the hydrological regime of the Torey lakes are considered, taking into account the construction of this hydraulic structure in the form of a reduction in water inflow by 10 and 20%. Possible environmental consequences for the region of the Torey Lakes during the construction of a hydraulic structure on the river are considered.