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Suketō River
The , also called the Fukushima River, is a river in Tokushima Prefecture, Japan. Course It starts on the western side of Hyōtan-jima where the Shinmachi River hits the Mitsuai Bridge and runs around to meet the river again to the east. The river passes through the Maegawa, Suketō, Fukushima, and Hyōtan-jima districts, as well as several others. In midstream, the Suketō River branches out into the Ōokagawa and Sumiyoshi-jima Rivers, and is known by some people as the "Fukushima River" in the area where it passes by the district of the same name. The Suketō River is crossed by the Mitsuai, Maegawa, Nishi no Maru, Suketō, New Suketō, Myōjin, Tokusumi, Fukushima, Sumiyoshi, New Fukushima, Nakazu and several other bridges. Ecology According to research in the year 2006, the river has a chemical oxygen demand of around 4–5 parts per million, making it slightly dirtied, but the water is clear to 50 cm in depth and still relatively clean. The Shinmachi Preservation C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shinmachi River
The is a river found in the heart of Tokushima City in Tokushima Prefecture. The Suketō River, Tamiya River, Sako River, and Sumiyoshijima River are its tributaries. At current, the non-profit organization Shinmachi Preservation Committee is in charge of keeping the river clean and holding tours around the river via boat. History During the Edo period the Shinmachi River was a very busy area due to the travel of boats carrying indigo dyeing wares, one of the main trades supporting finance in the region at the time. Geography The Shinmachi River runs through the middle of Tokushima, and passes by many well known tourist spots within the city area. Water Up until the early Shōwa period Shōwa most commonly refers to: * Hirohito (1901–1989), the 124th Emperor of Japan, known posthumously as Emperor Shōwa ** Shōwa era (昭和), the era of Hirohito from 1926 to 1989 * Showa Corporation, a Japanese suspension and shock manufactu ..., the condition of the river was so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in the south. The Japanese archipelago consists of four major islands—Hokkaido, Honshu, Shikoku, and Kyushu—and List of islands of Japan, thousands of smaller islands, covering . Japan has a population of over 123 million as of 2025, making it the List of countries and dependencies by population, eleventh-most populous country. The capital of Japan and List of cities in Japan, its largest city is Tokyo; the Greater Tokyo Area is the List of largest cities, largest metropolitan area in the world, with more than 37 million inhabitants as of 2024. Japan is divided into 47 Prefectures of Japan, administrative prefectures and List of regions of Japan, eight traditional regions. About three-quarters of Geography of Japan, the countr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokushima City
is the capital Cities of Japan, city of Tokushima Prefecture on Shikoku island in Japan. , the city had an estimated population of 245,264 in 122,539 households and a population density of 1,280 persons per km². The total area of the city is . Geography The city is situated in the north-eastern part of Tokushima Prefecture at the mouth of the Yoshino River. In terms of layout and organization, Tokushima displays the typical characteristics of a Jōkamachi, Japanese castle town. Most of the city is located in the Tokushima plain and is flat, but the symbol of the city, Mt. Bizan, rises in the center, creating a scenic landscape. The southern part is a mountainous area with forests. Mountains Rivers * Akui River * Imagire River * Shinmachi River * Suketō River * Yoshino River Neighbouring municipalities Tokushima Prefecture * Aizumi, Tokushima, Aizumi * Ishii, Tokushima, Ishii * Kamiyama, Tokushima, Kamiyama * Katsuura, Tokushima, Katsuura * Kitajima, Tokushima, Kitajima * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokushima Prefecture
is a Prefectures of Japan, prefecture of Japan located on the island of Shikoku. Tokushima Prefecture has a population of 682,439 (1 February 2025) and has a geographic area of 4,146 Square kilometre, km2 (1,601 sq mi). Tokushima Prefecture borders Kagawa Prefecture to the north, Ehime Prefecture to the west, and Kōchi Prefecture to the southwest. Tokushima, Tokushima, Tokushima is the capital and largest city of Tokushima Prefecture, with other major cities including Anan, Tokushima, Anan, Naruto, Tokushima, Naruto, and Yoshinogawa, Tokushima, Yoshinogawa. Tokushima Prefecture is located on the Kii Channel, connecting the Pacific Ocean and Seto Inland Sea, across from Wakayama Prefecture on the Kii Peninsula of the island of Honshu. Tokushima Prefecture is connected to Awaji Island across the Naruto Strait by the Ōnaruto Bridge as part of the Kobe-Awaji-Naruto Expressway, connecting the prefecture to the city of Kobe and the San'yō Expressway on Honshu. History Until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Oxygen Demand
In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed in mass of oxygen consumed over volume of solution, which in SI units is milligrams per liter ( mg/ L). A COD test can be used to quickly quantify the amount of organics in water. The most common application of COD is in quantifying the amount of oxidizable pollutants found in surface water (e.g. lakes and rivers) or wastewater. COD is useful in terms of water quality by providing a metric to determine the effect an effluent will have on the receiving body, much like biochemical oxygen demand (BOD). Overview The basis for the COD test is that nearly all organic compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent under acidic conditions. The amount of oxygen required to oxidize an organic compound to carbon dioxide, ammonia, and water is given by: :\mbox_n\mbox_a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shinmachi Preservation Committee
Shinmachi (新町) was a in Osaka, built between 1615 and 1623, and operating until its destruction in World War II. It was situated roughly two kilometers southwest of Nakanoshima. Today, it is mostly a tourist attraction and historical site. Throughout the Edo period (1603–1868), there was widespread male and female prostitution throughout the cities of Kyoto, Edo, and Osaka. The Tokugawa shogunate attempted to control this by restricting prostitution to designated city districts, known as ''yūkaku''. These districts were Shimabara in Kyōto (est. 1640Anne Louise Avery, ''Flowers of the Floating World: Geisha and Courtesans in Japanese Prints and Photographs, 1772–1926'' (Sanders of Oxford Exhibition Catalogue, March 2006)), Shinmachi in Osaka (est. 1624–1644) and Yoshiwara in Edo (est. 1617). These restrictions and controls did not derive from a moral opposition to prostitution, but out of a desire to compartmentalize certain types of activity within the cities. Kabuk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stingray
Stingrays are a group of sea Batoidea, rays, a type of cartilaginous fish. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deepwater stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays) and Myliobatidae (eagle rays). There are about 220 known stingray species organized into 29 genera. Stingrays are common in coastal tropical and subtropical marine waters throughout the world. Some species, such as the thorntail stingray (''Dasyatis thetidis''), are found in warmer temperate oceans and others, such as the deepwater stingray (''Plesiobatis daviesi''), are found in the deep ocean. The Potamotrygonidae, river stingrays and a number of whiptail stingrays (such as the Niger stingray (''Fontitrygon garouaensis'')) are restricted to fresh water. Most myliobatoids are d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yoshino River
The Yoshino River (吉野川 ''Yoshino-gawa'') is a river on the island of Shikoku, Japan. It is long and has a watershed of . It is the second longest river in Shikoku (slightly shorter than the Shimanto), and is the only river whose watershed spreads over the four prefectures of the island. Controversies The river was the subject of controversy in January 2000 when around half of eligible local residents showed up to the polls and overwhelmingly voted against a proposed dam construction across the river, with 102,759 (90.14%) registering a "no" vote and only 9,367 (8.22%) giving a "yes" vote (1.64% of votes were deemed invalid). This was considered unusual in a country where pork barrel ''Pork barrel'', or simply ''pork'', is a metaphor for allocating government spending to localized projects in the representative's district or for securing direct expenditures primarily serving the sole interests of the representative. The u ... public works projects were common and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Tokushima Prefecture
A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by the water cycle, the processes by which water moves around the Earth. Water first enters rivers through precipitation, whether from rainfall, the runoff of water down a slope, the melting of glaciers or snow, or seepage from aquifers beneath the surface of the Earth. Rivers flow in channeled watercourses and merge in confluences to form drainage basins, or catchments, areas where surface water eventually flows to a common outlet. Rivers have a great effect on the landscape around them. They may regularly overflow their banks and flood the surrounding area, spreading nutrients to the surrounding area. Sediment or alluvium carried by rivers shapes the landscape aro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
