Fuxian Lake

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Fuxian Lake
Fuxian Lake and Luchong Scenic Resort.jpg
Fuxian Lake and Luchong Scenic Resort
Location Yunnan Province
Coordinates 24°30′08″N 102°53′20″E / 24.50225°N 102.888888889°E / 24.50225; 102.888888889Coordinates: 24°30′08″N 102°53′20″E / 24.50225°N 102.888888889°E / 24.50225; 102.888888889
Primary inflows Liangwang River, Dongda River, Jianshan River
Primary outflows Haikou River
Basin countries China
Max. length 31.5 km (20 mi)
Max. width 11.5 km (7 mi)
Surface area 211 km2 (100 sq mi)
Average depth 89.6 m (294 ft)
Max. depth 155 m (509 ft)
Water volume 18,900×10^6 m3 (670×10^9 cu ft)
Surface elevation 1,721 m (5,646 ft)
Islands Gushan
Settlements Chengjiang County
References [1]
Black-headed Gulls in Fuxian Lake.
Gushan Hill in Fuxian Lake.

Fuxian Lake (Chinese: 抚仙湖; pinyin: Fǔxiān Hú) stretches out through Chengjiang, Jiangchuan and Huaning Counties in Yunnan Province, spanning an area of 212 square kilometers. The lake is ranked third-largest in Yunnan, after Dian Lake and Erhai Lake. Also the deepest lake in Yunnan, it is 155 meters deep at its greatest depth. It is also the third-deepest fresh water lake in China, after Tianchi and Kanas Lake.[1]

Flora and fauna[edit]

Fuxian Lake is known for its unique fauna, including many endemic species. However, its relative isolation makes it vulnerable to biological invasions and pollution.[2][3]

Together with other Yunnan lakes (Dian, Qilu, Yangzong, Xingyun, and Yilong), Fuxian is recognized as an ecoregion.[4] Fuxian is one of three major Yunnan lakes with a high number of endemics, the others being Dian (Dianchi) and Erhai.[5] There are 24 native fish species and subspecies in Fuxian Lake, including 11 endemics.[5] The situation for most of these is precarious because they have been negatively impacted by the many introduction of exotic species of fish (26 species), habitat degradation, water pollution, and overfishing.[5][6] The endemic fish are all cyprinids or stone loaches.[5]

Endemic fish in Fuxian Lake
Species IUCN assessment Comment
Poropuntius chonglingchungi Critically endangered[7] Possibly extinct (last seen in the 1990s)[5]
Cyprinus fuxianensis Critically endangered[8] Possibly extinct (last seen in the 1990s)[5]
Schizothorax lepidothorax Endangered[9] Possibly extinct (last seen in the 1990s)[5]
Sinocyclocheilus tingi Endangered[10] Still survives, but strong decline[10]
Tor yunnanensis Endangered[11] Possibly extinct (last seen in the 1990s)[11]
Anabarilius grahami Not assessed Still survives, but nearing extinction[3]
Discogobio longibarbatus Not assessed Possibly extinct (last seen in the 1990s)[5]
Percocypris pingi regani Not assessed Still survives.[5] Recent evidence suggests it should be considered a species (Percocypris regani) instead of a subspecies (Percocypris pingi regani)[12]
Triplophysa fuxianensis Not assessed Still survives[5]
Yunnanilus chuia Not assessed Possibly extinct (last seen in the 1990s)[5]
Yunnanilus obtusirostrisa Not assessed Possibly extinct (last seen in the 1990s)[5]

A fungus Dyrithiopsis lakefuxianensis growing on submerged wood has been collected and described as a new species to science from Fuxian Lake, as suggested by its scientific name.[13]

A few native hydrophytes have disappeared from the lake.[5]

The prehistoric Fuxianhuia, significant in discussions of arthropod evolution, is also named after the lake, where it was discovered in 1987.

Lost city[edit]

In 2001 it was reported that earthenware and stonework covering an area of approximately 2.4–2.7 square kilometers had been discovered beneath the lake. Carbon dating circa 2007 confirmed an age of 1,750 years, or approximately 257 CE. It is thought that the remains may represent buildings from the ancient Dian Kingdom that slid into the lake during an earthquake.[14][15]

In 2006, CCTV made an additional survey. Carbon dating in 2007 found relics to be roughly 1,750 years old. In October 2014 additional research was made on the site by a multidisciplinary team. Portions were mapped and 42 handmade stone artifacts were recovered from a depth of seven meters.[16][17]

Notable sites[edit]

There are two major sites west of the lake: a military base at Lijiashan (speculated to be used for submarine testing and other forms of nautical engineering) and a nearby tourism resort.

Panorama[edit]

Fuxian Lake
Panorama of Fuxian Lake taken from mountains to the west.

References[edit]

  1. ^ a b Sumin, Wang; Hongshen, Dou (1998). Lakes in China. Beijing: Science Press. p. 374. ISBN 7-03-006706-1. 
  2. ^ Cui, Y. D.; Liu, X. Q.; Wang, H. Z. (2008). "Macrozoobenthic community of Fuxian Lake, the deepest lake of southwest China". Limnologica - Ecology and Management of Inland Waters. 38 (2): 116–125. doi:10.1016/j.limno.2007.10.003. 
  3. ^ a b Qin, J.; Xu, J.; Xie, P. (2007). "Diet overlap between the endemic fish Anabarilius grahami (Cyprinidae) and the exotic noodlefish Neosalanx taihuensis (Salangidae) in Lake Fuxian, China". Journal of Freshwater Ecology. 22 (3): 365–370. doi:10.1080/02705060.2007.9664165. 
  4. ^ Freshwater Ecoregions of the World: Yunnan Lakes. Retrieved 15 February 2017.
  5. ^ a b c d e f g h i j k l m Wang, Wang, Li, Du, Yang, Lassoie, and Hassan (2013). Six decades of changes in vascular hydrophyte and fish species in three plateau lakes in Yunnan, China. Biodivers. Conserv. 22: 3197–3221. doi: 10.1007/s10531-013-0579-0
  6. ^ Yang, J.X. and Y.R. Chen, editors (1995). The biology and resource utilization of the fishes of Fuxian Lake, Yunnan. Yunnan Science and Technology Press, Kunming, China. ISBN 9787541607677
  7. ^ Zhao, H. (2011). "Poropuntius chonglingchungi". IUCN Red List of Threatened Species. Version 2017.1. International Union for Conservation of Nature. Retrieved 15 February 2017. 
  8. ^ Devi, R. & Boguskaya, N. (2011). "Cyprinus fuxianensis". IUCN Red List of Threatened Species. Version 2017.1. International Union for Conservation of Nature. Retrieved 15 February 2017. 
  9. ^ World Conservation Monitoring Centre (1996). "Schizothorax lepidothorax". IUCN Red List of Threatened Species. Version 2017.1. International Union for Conservation of Nature. Retrieved 15 February 2017. 
  10. ^ a b Cui, K. & Chen, X.-Y. (2011). "Sinocyclocheilus tingi". IUCN Red List of Threatened Species. Version 2017.1. International Union for Conservation of Nature. Retrieved 15 February 2017. 
  11. ^ a b Chen, X.-Y. (2011). "Folifer yunnanensis". IUCN Red List of Threatened Species. Version 2017.1. International Union for Conservation of Nature. Retrieved 15 February 2017. 
  12. ^ Wang, Yang, and Chen (2013). Phylogeny and Biogeography of Percocypris (Cyprinidae, Teleostei). PLoS ONE 8(6): e61827. doi: 10.1371/journal.pone.0061827
  13. ^ Jeewon, R.; L. Cai; E. C. Y Liew; K. Q Zhang; K. D Hyde (2003-09-01). "Dyrithiopsis lakefuxianensis gen. et sp. nov. from Fuxian Lake, Yunnan, China, and notes on the taxonomic confusion surrounding Dyrithium". Mycologia. 95 (5): 911–920. doi:10.2307/3762019. 
  14. ^ "Ancient Buildings Found in Fuxian Lake". 2001-06-04. Retrieved 2010-08-20. 
  15. ^ "Mysterious Fuxian Lake's secrets told". Retrieved 2010-08-20. 
  16. ^ "New underwater archeological discoveries made at Fuxian". 23 October 2014. 
  17. ^ "云南抚仙湖发现水下史前遗址构件(组图)". 16 October 2014.