|
Cấm River (Vietnam)
The Cấm River (Vietnamese: Sông Cấm) is a river in northern Vietnam. It is one of the shorter distributaries of the Thái Bình River but geographically important as Hai Phong, Vietnam's second largest port is located on the banks of this river. Geography and hydrology The start of the Cấm River is the confluence of the Kinh Môn River and a smaller stream, the Hàn, in Hải Dương Province. From there it flows southeasterly, turning more easterly at Hai Phong before entering the Gulf of Tonkin as a wide estuary farther downstream. The entire length of the river is . The Cấm is subject to frequent silting, requiring regular dredging Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing d ... to accommodate ships of greater than 5,000 tons. References *''Vietnam Administrative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnamese Language
Vietnamese () is an Austroasiatic languages, Austroasiatic language Speech, spoken primarily in Vietnam where it is the official language. It belongs to the Vietic languages, Vietic subgroup of the Austroasiatic language family. Vietnamese is spoken natively by around 86 million people, and as a second language by 11 million people, several times as many as the rest of the Austroasiatic family combined. It is the native language of Vietnamese people, ethnic Vietnamese (Kinh), as well as the second language, second or First language, first language for List of ethnic groups in Vietnam, other ethnicities of Vietnam, and used by Overseas Vietnamese, Vietnamese diaspora in the world. Like many languages in Southeast Asia and East Asia, Vietnamese is highly analytic language, analytic and is tone (linguistics), tonal. It has head-initial directionality, with subject–verb–object order and modifiers following the words they modify. It also uses noun classifier (linguistics), classi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and dependencies by population, fifteenth-most populous country. One of two communist states in Southeast Asia, Vietnam shares land borders with China to the north, and Laos and Cambodia to the west. It shares Maritime boundary, maritime borders with Thailand through the Gulf of Thailand, and the Philippines, Indonesia, and Malaysia through the South China Sea. Its capital is Hanoi and its largest city is Ho Chi Minh City. Vietnam was inhabited by the Paleolithic age, with states established in the first millennium BC on the Red River Delta in modern-day northern Vietnam. Before the Han dynasty's invasion, Vietnam was marked by a vibrant mix of religion, culture, and social norms. The Han dynasty annexed Northern and Central Vietnam, which were subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distributary
A distributary, or a distributary channel is a stream channel that branches off and flows a main stream channel. It is the opposite of a ''tributary'', a stream that flows another stream or river. Distributaries are a result of river bifurcation and are often found where a river approaches a lake or an ocean and divides into distributary networks; as such they are a common feature of river deltas. They can also occur inland, on alluvial fans, or where a tributary stream bifurcates as it nears its confluence with a larger stream. In some cases, a minor distributary can divert so much water from the main channel that it can later become the main route. Related terms Common terms to name individual river distributaries in English-speaking countries are ''arm'' and ''channel''. These terms may refer to a distributary that does not rejoin the channel from which it has branched (e.g., the North, Middle, and South Arms of the Fraser River, or the West Channel of the Mackenzie River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thái Bình River
Thái Bình river (Vietnamese: Sông Thái Bình) is the name of the Thái Bình river system's main river in Northern Vietnam. This river system joins with the Red River system and brings alluvium to create Red River Delta. Thái Bình river starts in the area of Đồng Phúc commune, Yên Dũng District, Bắc Giang Province – where the Thuong River and Cầu River join with each other. It then flows to Hải Dương Province and becomes the boundary between Bắc Giang and Hải Dương. After flowing through the area of Hải Dương, it enters Thái Bình Province and flows to the South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by South China, in the west by the Indochinese Peninsula, in the east by the islands of Taiwan island, Taiwan and northwestern Philippines (mainly Luz ... at Ba Lat river mouth. The total length of the main river is about . References Rivers of Thái Bình province River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hai Phong
Haiphong or Hai Phong (, ) is the third-largest city in Vietnam and is the principal port city of the Red River Delta. The municipality has an area of , consisting of 8 urban districts, 6 rural districts and 1 municipal city (sub-city). Two of the rural districts cover islands in the South China Sea: Bạch Long Vĩ and Cát Hải. It has a population of 2,130,898 in 2023. The city's economy has strength in manufacturing, as evidenced by large industrial parks and numerous smaller traditional handicraft villages. Historically, Haiphong was the first place in Vietnam and Mainland Southeast Asia to get electricity. In the imperial era of Đại Việt, the Bạch Đằng River in Haiphong was a place of many legendary victories, led by now-legendary commanders Ngô Quyền and Trần Hưng Đạo. In the 16th century, Mạc dynasty promoted the coastal settlement as a secondary capital, growing to become an important port town of Đàng Ngoài. After the French conquest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinh Môn River
The Kinh Môn River () is a river of Vietnam. It flows through Hải Dương Province and Hai Phong Haiphong or Hai Phong (, ) is the third-largest city in Vietnam and is the principal port city of the Red River Delta. The municipality has an area of , consisting of 8 urban districts, 6 rural districts and 1 municipal city (sub-city). Two ... for 45 kilometres. References Rivers of Hải Dương province Rivers of Haiphong Rivers of Vietnam {{Vietnam-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hải Dương Province
Hải Dương was a former province in the Red River Delta of northern Vietnam. Its name derives from Sino-Vietnamese "ocean sun", though the modern province is in fact landlocked. Located in the Northern Key Economic Region, Hai Duong Province has a dynamic economy with a focus on industrial manufacturing. Name ''Hải Dương'' is Sino-Vietnamese for "ocean sun" ( 海 陽). The name first appeared officially in 1498. In feudal times, Hải Dương indicated a vast area from east of Hanoi to the South China Sea. The area corresponded to all of modern Hải Dương, Hải Phòng, most of Hưng Yên and the southwestern corner of Quảng Ninh. Geography The province is located in the Red River Delta of north-eastern Vietnam, about mid-distance from Hanoi to Haiphong. Two famous pagodas, Côn Sơn and Kiếp Bạc, are situated in this province. The province is known for its lychees and for the traditional sweet ''bánh đậu xanh'' (mung bean paste). Hải Dương is lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Tonkin
The Gulf of Tonkin is a gulf at the northwestern portion of the South China Sea, located off the coasts of Tonkin ( northern Vietnam) and South China. It has a total surface area of . It is defined in the west and northwest by the northern coastline of Vietnam down to the Cồn Cỏ district, in the north by China's Guangxi Zhuang Autonomous Region, and to the east by the Leizhou Peninsula and Hainan Island. English sources from the People's Republic of China refer to the Gulf of Tonkin as Beibu Wan. Description and etymology The name ''Tonkin'', written "" in chữ Hán characters and in the Vietnamese alphabet, means "eastern capital", and is the former toponym for Hanoi, the present capital of Vietnam. It is not to be confused with Tokyo, which is also written "" and also means "eastern capital". During the French colonial era, the northern region of today’s Vietnam was called ''Tonkin''. ''Bắc Bộ'' is the native Vietnamese name of Tonkin, which is the nowad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silting
Siltation is water pollution caused by particulate Terrestrial ecoregion, terrestrial Clastic rock, clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or permanent) of fine sediments on bottoms where they are undesirable. Siltation is most often caused by soil erosion or sediment spill. It is sometimes referred to by the ambiguous term "sediment pollution", which can also refer to a chemical contamination of sediments accumulated on the bottom, or to pollutants bound to sediment particles. Although "siltation" is not perfectly stringent, since it also includes particle sizes other than silt, it is preferred for its lack of ambiguity. Causes The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Usually the main objectives of dredging is to recover material of value, or to create a greater depth of water. Dredging systems can either be shore-based, brought to a location based on barges, or built into purpose-built vessels. Dredging can have environmental impacts: it can disturb marine sediments, creating dredge plumes which can lead to both short- and long-term water pollution, damage or destroy seabed ecosystems, and release legacy human-sourced toxins captured in the sediment. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
