| 词条 | Lake Usori |
| 释义 |
| name = Lake Usori 宇曽利湖 | image = 08-8-22 Lake Usori.JPG | caption = | image_bathymetry = | caption_bathymetry = | location = Honshū, Japan | coords = {{coord|41|19|00|N|141|05|20|E|type:waterbody_region:JP|display=inline,title}} | type = Crater lake | inflow = | outflow = Shotsu River | catchment = | basin_countries = Japan | length = | width = | area = {{convert|2.68|km2|abbr=on}} | depth = | max-depth = {{convert|23.5|m|abbr=on}} | volume = | residence_time = | shore = {{convert|7.1|km|abbr=on}} | elevation = {{convert|209|m|ft|0}} | islands = | cities = | pushpin_map = Japan Aomori Prefecture#Japan | pushpin_label_position = | pushpin_map_alt = | pushpin_map_caption = }}{{nihongo|Lake Usori|宇曽利湖|Usori-ko}} is a crater lake in northern Honshū island, Japan. It is also referred to as {{nihongo|Lake Usorisan|宇曽利山湖|Usorizan-ko}}. Located in the Shimokita Peninsula of Aomori Prefecture, it is within the borders of the city of Mutsu and Shimokita Hanto Quasi-National Park. Lake Usori is located in the volcanic Osorezan Mountains, of which the famed Mount Osore forms one portion. From the surrounding caldera walls, some ten streams drain into Lake Usori, but there is only one outlet, the 13.85 kilometer Shotsu River, which drains into the Tsugaru Strait. The lake is noted for the extreme acidity of its water, with an average pH of around 3.3 to 3.4.[1] Geologists attribute this to hydrogen sulfide seeping from the caldera bottom, forming sulfuric acid in the lake water. Due to its acidity, the lake is home to only one subspecies of Japanese dace,[2] along with several insect species. However, the lake is a noted spot for waterfowl. References1. ^{{cite journal |last=Satake |first=Kenichi |last2=Oyagi |first2=Akira |date= 1995|title= Natural acidification of lakes and rivers in Japan: The ecosystem of Lake Usoriko (ph 3.4–3.8) |url= http://www.springerlink.com/content/x133h35732r64634/fulltext.pdf |journal= Water, Air, & Soil Pollution |volume= 85|issue= 2|pages= 511–516 |doi= 10.1007/BF00476880 |access-date= }} 2. ^{{cite journal |last=Satake |first=Kenichi |last2=Oyagi |first2=Akira |date= 1999|title= Acid Tolerance of Japanese Dace (a Cyprinid Teleost) in Lake Osorezan, a Remarkable Acid Lake |url= http://www.bioone.org/doi/pdf/10.2108/zsj.16.871 |journal= Zoological Science |volume= 16|issue= 6|pages= 871–877 |doi= 10.2108/zsj.16.871 |access-date= }} External links{{Commons category-inline}}{{DEFAULTSORT:Usori}} 6 : Lakes of Japan|Calderas of Japan|Crater lakes|Tourist attractions in Aomori Prefecture|Landforms of Aomori Prefecture|Mutsu, Aomori |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。