Abstract
The Sharyn River is the largest tributary of the Ile River. The area of the river basin is 7720 km2 and its length is 427 km. The sources of the river and its right-bank tributaries are located on the southern slope of the Ketmen ridge. Its most abundant left-bank tributary (the Karkara River) forms the flow from the northeastern spurs of the Terskey-Alatau and Kungai-Alatau. The Sharyn belongs to the rivers of mixed type of feeding (with predominance of snow), with a prolonged period of spring-summer flooding (April-July) due to different snow melting in different altitude zones. Runoff formation occurs mainly in the high-altitude and mid-mountain zones of the basin.
The Moynak hydroelectric power plant was commissioned in 2012 in the upper part of the Sharyn River. The creation of the hydropower plant changed the flow of the Sharyn River, downstream of the facility grows ash grove on the area of 5014 hectares. Ash grove has the status of a natural monument of republican importance. In addition to the Sogdian ash tree, there are sisolic poplar, turanga, pinnate elm, barberry, sea buckthorn and others.
Although some work has been done on water resources management, a water resources Management Plan for the Sharyn River has not yet been developed. As part of the research, the current state of floodplain forests, the extent of vegetation coverage and the level of floodplain moisture content in dynamics for 2000-2018 were assessed.
Based on the analysis of available materials and the results of the research, measures to monitor the hydrological regime of the river and the state of the population of Sogdian ash as the key species, to ensure periodic flooding of the floodplain, corresponding to the conditions of sustainable functioning of floodplain vegetation, were summarized and proposed.
01 Introduction
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02 References
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