Kaygorodova Irina A, Fedorova Lyudmila I
Limnological Institute, Siberian Branch of Russian Academy of Sciences, 3 Ulan-Batorskaya Street, 664033 Irkutsk, Russia.; Email:
Irkutsk State Agrarian University named after A.A. Ezhevsky, 59 Timiryazev Street, 664038 Irkutsk, Russia; Email: unknown.
Zootaxa. 2016 Jul 27;4144(2):287-90. doi: 10.11646/zootaxa.4144.2.10.
The Irtysh River is one of the major waterways of the Republic of Kazakhstan. The river originates in the territory of Mongolia and China, flows through the East Kazakhstan and falls into the Ob River in the Western Siberia of Russia. The Kazakhstan section of the river, with length of 1698 km and water resources about 43.8 km (Dyusebaeva 2012), is situated on the border of the West Siberian Plain, the Altai Mountains and the Kazakh Uplands. As the river crosses various natural zones, characteristics of its hydrological regime is very diverse. In the south, in the area of Ust-Kamenogorsk, the valley of the Irtysh extends. In the upper reaches up to the city of Semey (formerly Semipalatinsk), the river is surrounded by plain and mountain landscapes. Downstream from Semey, the Irtysh enters the West Siberian Plain and flows to north-west through dry steppes. The riverbed is unstable: sometimes it is very tortuous, sometimes it is broken into branches, and, there are a lot of sand spits. The hydrological level of the Kazakhstan part of the Irtysh River is regulated with the cascade of storage reservoirs near the towns Bukhtarma, Ust-Kamenogorsk and Shulbinsk.
额尔齐斯河是哈萨克斯坦共和国的主要水道之一。该河发源于蒙古和中国境内，流经东哈萨克斯坦，注入俄罗斯西西伯利亚的鄂毕河。该河哈萨克斯坦段长1698公里，水资源约43.8公里（迪尤塞别娃，2012年），位于西西伯利亚平原、阿尔泰山脉和哈萨克高地的边界。由于该河穿越多个自然区域，其水文状况特征非常多样。在南部，乌斯季卡缅诺戈尔斯克地区，额尔齐斯河河谷延伸。在上游直至塞米市（原塞米巴拉金斯克），河流被平原和山地景观环绕。从塞米市下游开始，额尔齐斯河进入西西伯利亚平原，向西北流经干旱草原。河床不稳定：有时非常曲折，有时分成支流，并且有许多沙嘴。额尔齐斯河哈萨克斯坦部分的水文水位通过布赫塔尔马、乌斯季卡缅诺戈尔斯克和舒尔宾斯克等城镇附近的一系列蓄水水库进行调节。
