Ishim Steppe
{{Short description|Plain in Western Siberia}}
{{Infobox landform
| name = Ishim Steppe
| other_name = Ishim Plain
Ишимская равнина
Есіл даласы
| type = Plain
| photo =Западная Сибирь.jpg
| caption = Map of the West Siberian Plain with the Ishim Steppe in the southern part
| coordinates= {{coord|56|N|70|E|type:landform|format=dms|display=inline,title}}
| area = {{Convert|200000|km2|sqmi|abbr=on}}
| part_of = West Siberian Plain
| elevation = {{convert|140|m|sp=us}} to {{convert|250|m|sp=us}}
| map =
| map_caption =
| relief =
| location = Kazakhstan, Russia
}}
Ishim Steppe ({{langx|ru|Ишимская равнина}}, {{langx|kk|Есіл даласы}}, Yesil dalasy) is a plain in the southern part of Western Siberia, between the Irtysh and Tobol rivers. Administratively it is part of Kurgan, Tyumen, and Omsk oblasts in Russia, and the North Kazakhstan Region in Kazakhstan.{{cite web |url=http://deutsche-allgemeine-zeitung.de/ru/content/view/1753/66/ |title=«Ishim Steppe» |author=Lyudmila Fel'k |lang=ru |website=«Deutschе Allgemeine Zeitung» |archiveurl=https://web.archive.org/web/20160305125021/http://deutsche-allgemeine-zeitung.de/ru/content/view/1753/66/ |archivedate=2016-03-05 |access-date=2021-03-17 |url-status=dead }}
Geography
The plain includes the Ishim, after which it is named. It varies in altitude from {{convert|120|m|ft}} to {{convert|140|m|ft}} and is composed chiefly of sand and clay deposits of the Neocene era, covered with loess-like loams. The terrain is characterized by a series of crests and hollows, with the ridges extending from the northeast to the southwest. The almost {{convert|500|km|sp=us}} long Kamyshlov Log (Камышловский лог), a trench where lake Bolshoy Tarangul lies, stretches roughly from east to west across the plain.[http://www.omsktfi.ru/nature/water/115-voda3.html Характеристика состояния водных объектов Омской области» Архивная копия]
In the lowlands and valleys there are numerous fresh, bitter, and salt lakes, such as Siletiteniz, Kyzylkak, Medvezhye, Stanovoye, Teke, Ebeyty, Tavolzhan and Shaglyteniz, as well as the Krutinsky Lakes, including lakes Tenis-Saltaim, Sazykul and Ik. The smaller lakes and rivers dry up in the summer.[https://bse.sci-lib.com/article057084.html Ишимская степь]; Great Soviet Encyclopedia in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978. (in Russian)
Climate
The amplitude of average monthly temperatures is between {{convert|37|°C|sp=us}} and {{convert|38|°C|sp=us}}. Winters are cold and long, the average January temperature ranging between {{convert|−18|°C|sp=us}} and {{convert|−20|°C|sp=us}}, reaching {{convert|−48|°C|sp=us}} to {{convert|−52|°C|sp=us}} in periods of severe frosts. The summer season is warm, with the average temperature in July between {{convert|18.5|°C|sp=us}} and {{convert|19.5|°C|sp=us}} and maximums reaching {{convert|38|°C|sp=us}} to {{convert|40|°C|sp=us}}.[https://ecosystema.ru/08nature/world/geoussr/2_2_4.html#2_2_4_2 Ландшафтные зоны и провинции Западно-Сибирской равнины: Лесостепная зона. ]
==Flora==
The landscape of the plain is dominated by meadow steppes and birch forests (kolki). The soil consists in leached and normal chernozem and gray forest topsoils. In the south the plain is entirely under cultivation.