The Red River Delta or Hong River Delta ( vi, Châu thổ sông Hồng) is the flat low-lying plain formed by the Red River and its distributaries merging with the

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 st ...

in northern

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

. ''Hồng'' (紅) is a Sino-Vietnamese word for "red" or "crimson." The delta has the smallest area but highest population and population density of all regions. The region, measuring some is well protected by a network of

dikes Dyke (UK) or dike (US) may refer to: General uses * Dyke (slang), a slang word meaning "lesbian" * Dike (geology), a subvertical sheet-like intrusion of magma or sediment * Dike (mythology), ''Dikē'', the Greek goddess of moral justice * Dikes ...

. It is an agriculturally rich and densely populated area. Most of the land is devoted to rice cultivation. Eight

provinces A province is almost always an administrative division within a country or state. The term derives from the ancient Roman ''provincia'', which was the major territorial and administrative unit of the Roman Empire's territorial possessions outsi ...

together with two municipalities, the capital

Hanoi Hanoi or Ha Noi ( or ; vi, Hà Nội ) is the capital and second-largest city of Vietnam. It covers an area of . It consists of 12 urban districts, one district-leveled town and 17 rural districts. Located within the Red River Delta, Hanoi is ...

, and the port

Haiphong Haiphong ( vi, Hải Phòng, ), or Hải Phòng, is a major industrial city and the third-largest in Vietnam. Hai Phong is also the center of technology, economy, culture, medicine, education, science and trade in the Red River delta. Haiphong wa ...

form the delta. It has a population of almost 23 million in 2019. In 2021,

Paul Sidwell Paul James Sidwell is an Australian linguist based in Canberra, Australia who has held research and lecturing positions at the Australian National University. Sidwell, who is also an expert and consultant in forensic linguistics, is most notable ...

proposed that the locus of Proto-

Austroasiatic The Austroasiatic languages , , are a large language family A language family is a group of languages related through descent from a common ''ancestral language'' or ''parental language'', called the proto-language of that family. The te ...

languages was in this area about 4,000–4,500 years before present.Sidwell, Paul. 2021
''Austroasiatic Dispersal: the AA "Water-World" Extended''SEALS 2021

Video)
/ref> The Hong River Delta is the cradle of the Vietnamese nation.

Water puppetry Water puppetry ( vi, Múa rối nước) is a tradition that dates back as far as the 11th century when it originated in the villages of the Red River Delta area of northern Vietnam. Today's Vietnamese water puppetry is a unique variation on the a ...

originated in the rice paddies here. The region was bombed by

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

warplanes A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary armed service of any type. Military aircraft can be either combat or non-combat: * Combat aircraft are designed to destroy enemy equipm ...

during the

Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...

. The region was designated as the

Red River Delta Biosphere Reserve The Red River Delta Biosphere Reserve (established 2004) is a UNESCO biosphere reserve in the coastal region of northern Vietnam. Mangroves and intertidal habitats of the Red River Delta form wetlands of high biodiversity especially in the Xuan Th ...

as part of

UNESCO The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...

Man and the Biosphere Programme Man and the Biosphere Programme (MAB) is an intergovernmental scientific program, launched in 1971 by UNESCO, that aims to establish a scientific basis for the improvement of relationships between people and their environments. MAB's work engag ...

in 2004.

Provinces

* Quảng Ninh Province is sometimes included as a province of the Red River Delta. Alternatively, it is seen as part of the Northeast region. *

Hà Tây Province Hà Tây () was a former province of Vietnam, in the Red River Delta, now part of Hanoi. On May 29, 2008 the decision was made to subsume the province into the city of Hanoi. The merger took place on August 1, 2008. The name of the province wa ...

was merged into

in 2008.

Geography

Spanning some 150 km in width, the Red River Delta is located in the western coastal zone of the

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 ...

. The Red River is the second largest river in Vietnam and one of the five largest rivers on the East Asia coast. Its catchment covers parts of China and Vietnam and its water and sediment discharges greatly influence the hydrology in the Gulf of Tonkin.

Delta economy

In 2003, of the 78 million people in Vietnam, almost a third (24 million) live in the Red River basin, including over 17 million people in the delta itself. There are many large industrial zones in the Red River delta clustering in Viet Tri, Hanoi, Haiphong and

Nam Dinh Nam, Nam, or The Nam are shortened terms for: * Vietnam, which is also spelled ''Viet Nam'' * The Vietnam War Nam, The Nam or NAM may also refer to: Arts and media * Nam, a fictional character in anime series ''Dragon Ball'' * ''NAM'' (video ...

. Most of the population works in rice cultivation but the delta region hosts other important economic activities such as

fisheries Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life; or more commonly, the site where such enterprise takes place ( a.k.a. fishing ground). Commercial fisheries include wild fisheries and fish farms, both ...

aquaculture Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. lot ...

land reclamation Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamati ...

for agriculture, harbor construction,

mangrove A mangrove is a shrub or tree that grows in coastal saline water, saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evoluti ...

forestry Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. Th ...

, etc. The socio-economic development in the delta is also affected by seasonal

storms A storm is any disturbed state of the natural environment or the atmosphere of an astronomical body. It may be marked by significant disruptions to normal conditions such as strong wind, tornadoes, hail, thunder and lightning (a thunderstorm), ...

flooding A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrolog ...

coastal erosion Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward ...

silting Siltation, is water pollution caused by particulate terrestrial 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 ...

, salt water intrusion, etc. Though the Red River Delta makes up only 5% of Vietnam's land, 30% of the country's population live there, making it the most densely populated part of the country. 80% of the population are employed in agriculture, but the agricultural lands of the delta amount to only about .3-.5

hectare The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is a ...

s per household, making the limited supply of arable lands a significant constraint to improving living standards. Agriculturally the Red River Delta is the second most important rice-producing area in Vietnam, accounting for 20% of the national crop. Production of rice is close to optimal with very little yield gap to exploit and employing double cropping techniques to achieve close to maximum yields. However the rich soil of the delta does present a possibility of crop diversification and there is potential for further development of aquaculture. With these developmental pressures the estuarine environment and ecosystem face degradation due to threats of pollution, over-fishing and aquaculture destroying natural habitats..

Notes and references

Provinces

Geography

Delta economy

See also

Notes and references