Bohai Sea

Coordinates: 38°42′N 119°54′E / 38.7°N 119.9°E / 38.7; 119.9
Source: Wikipedia, the free encyclopedia.

Bohai Sea
Tâi-lô
Phu̍t hái

The Bohai Sea (Chinese: 渤海; pinyin: Bó Hǎi; lit. 'Bo Sea') is a gulf/inland sea approximately 77,000 km2 (30,000 sq mi) in area on the east coast of Mainland China.[1] It is the northwestern and innermost extension of the Yellow Sea, to which it connects to the east via the Bohai Strait. It has a mean depth of approximately 18 meters (59 ft), with a maximum depth of about 80 meters (260 ft) located in the northern part of the Bohai Strait.[2]

The Bohai Sea is enclosed by three

territorial sea of the People's Republic of China due to the presence of the Miaodao islands.[3][4] China declared the Bohai sea to be part of its inland waters in 1958.[5]

History

During the

glacioeustatic transgressions and regressions, as evidenced by sediment cores sampled from the seafloor showing fluvial floodplain conditions during intervals of low sea level.[2]

Until the early 20th century, Bo Hai was often called the Gulf of Zhili (Chinese: 直隸海灣; pinyin: Zhílì Hǎiwān) or Gulf of Beizhili (北直隸海灣; Běizhílì Hǎiwān). The romanization systems widely used in the West at the time rendered these names as variations of "Jili", "Chihli", "Pechihli", or "Pe-Chihli".[6][7] Zhili and North Zhili were historic provinces in an area surrounding Beijing that approximately corresponds to what is now Hebei Province.

Geography

There are three major bays inside the Bohai Gulf:

Changxing Island, Xizhong Island
, the East/West Mayi Islands (蚂蚁岛), Zhu Island (猪岛; 豬島) and She Island (蛇岛; 蛇島).

Bohai Strait

The opening of the Bohai Gulf is bounded by the Changshan Archipelago between

Changshan Island Chain traversing the southern half of the strait, the strait is subdivided into several channels
:

(from north to south, the most commonly used ones in bold)

Major ports

China MSA's Seaways Plan for the Bohai Sea. Planned routes follow closely the seaways currently in use

There are five major ports along the Bohai Sea rim, with throughputs over 100 million tons, though the port of Tangshan is further subdivided into Jingtang and Caofeidian:

Caofeidian and Jingtang are usually treated as one port for statistical purposes. The ports of Dalian and Yantai are also traditionally considered part of the Bohai rim, even though strictly speaking they lie outside the limits of the sea. The Port of Longkou reached 70 million tons of cargo in 2013, and is expected to reach the 100 million ton landmark in the near future.[8]

Major cities along the Bohai Sea coast

Rocky shore in Dalian, Liaoning

Hydrocarbon resources

The Bohai Bay contains significant oil and gas reserves,

fluvial-deltaic and lacustrine sandstones.[14] Oil spills have been reported frequently in this region: three spills occurred in a two-month timeframe in 2011.[15] In 2024, CNOOC discovered a 100 million ton oilfield in Bohai Sea.[16]

Tunnel crossing

In February 2011,

rail tunnel across the Bohai Strait to connect the Liaodong and Shandong peninsulas. When completed, the tunnel would be 106 kilometers (66 mi) long.[17] In July 2013, a modified plan was announced, involving a 123-kilometer (76 mi)-long tunnel between Dalian, Liaoning and Yantai, Shandong.[18] The overall concept had its origins in a 1994 plan, which had been intended for completion by 2010 at a cost of $10 billion.[citation needed
]

See also

Notes

References

  1. ^ 中华人民共和国版图 (in Chinese)
  2. ^
    S2CID 216519749
    . Retrieved 5 November 2022.
  3. ^ "四大海域,为什么只有渤海属于内海,领海内允许他国船只航行吗?_腾讯新闻". new.qq.com. Retrieved 25 March 2023.
  4. ^ "Marine Regions". www.marineregions.org. Retrieved 25 March 2023.
  5. ^ "Gard Alert: Bohai Sea, China – fines for discharge of pollutants". www.gard.no. Retrieved 25 March 2023.
  6. ^ "Civilization on the North China Plain".
  7. ^ "State of Yan". Archived from the original on 24 May 2021. Retrieved 24 May 2021.
  8. ^ "丹东港吞吐量突破1亿吨 正式跻身大港俱乐部-中新网".
  9. S2CID 252424192
    . Retrieved 24 January 2023.
  10. ^ China. Background. US Energy Information Administration
  11. ^ Asia Pacific & Middle East. ConocoPhillips
  12. ^ Roc Oil begins Bohai Bay oil production Archived 16 March 2012 at the Wayback Machine. Bairdmaritime. 14 May 2009
  13. ^ , Pp. 471–486
  14. ^ China: Third Oil Spill in Bohai Sea in Less than Two Months. Offshore Energy Today (12 July 2011). Retrieved on 3 August 2011.
  15. ^ "China's CNOOC discovers 100m ton oilfield in Bohai Sea". Nikkei Asia. Retrieved 18 March 2024.
  16. Asahi Shimbun
    , "China To Build Undersea Tunnel Crossing Bohai Strait", 18 February 2011.
  17. ^ "'China plans world's longest sea tunnel at $42 billion -report". Reuters. 11 July 2013. Archived from the original on 24 September 2015. Retrieved 30 June 2017.

External links

38°42′N 119°54′E / 38.7°N 119.9°E / 38.7; 119.9