We calculated the water balance and investigated the mineralization of water in closed Lake Chany. the largest lake in Western Siberia in terms of its water area and of great ecological and fisheries importance. The most important natural characteristic of the lake is the cyclic fluctuation of the water level caused by the variability in the overall humidity of the Ob-Irtysh interfluve. The water level regime of Lake Chany is the main natural factor influencing its water-ecological state. Changes in water level are determined by the ratio between the inflow and discharge in its water balance. The modern water balance of Lake Chany (after the separation of the Yudinskii reach) was calculated for hydrological years, and the previously calculated values of its components were refined using a new digital elevation model. It was found that the most significant influence on the water level fluctuation comes from changes in the discharge of the Kargat and Chulym rivers feeding the lake, which is confirmed by a high correlation coefficient between the river inflow and the level increment. Comparison of the curve of changes of the average annual level of Lake Chany and the differential integral curve of the total annual flow of the Kargat and Chulym rivers shows that the main phases of fluctuations in the water level in the lake and the river inflow coincide. The values of mineralization of the lake water changes with fluctuations in water storage. Results of investigations made in 2002 and 2004 were used in carrying out the zoning of the lake water area according to the mineralization of water. The heterogeneity of water salinity is explained by the morphology of its basin without outflow, a low water exchange between different parts of the lake, and by the desalinating effect of the waters of its feeding rivers.

中文翻译：

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闭湖查尼水量平衡及矿化规律

我们计算了水平衡并调查了封闭的查尼湖中水的矿化。西西伯利亚最大的湖泊，就其水域而言，具有重要的生态和渔业重要性。该湖最重要的自然特征是鄂尔齐斯河间河道整体湿度变化引起的水位周期性波动。查尼湖水位状况是影响其水生态状况的主要自然因素。水位的变化取决于其水量平衡中的流入量和排放量之间的比率。Chany 湖的现代水平衡（在 Yudinskii 河段分离后）按水文年份计算，之前计算的其分量值使用新的数字高程模型进行了细化。研究发现，对水位波动的最显着影响来自注入湖泊的 Kargat 和 Chulym 河流的流量变化，河流流入量与水位增量之间的高相关系数证实了这一点。查尼湖年平均水位变化曲线与卡加特河和楚林河年总流量微分积分曲线对比表明，湖内水位波动与河流入流的主要阶段重合。湖水矿化值随着蓄水量的波动而变化。2002年和2004年的调查结果用于根据水的矿化情况对湖泊水域进行分区。