Fuzhou World Bank Financed Projects Nanjiang Binlu, Phase-ii project of the Third Ring Road and Kuiqi Bridge environmental impact report
Current status of aquatic ecology at the Kuiqi River reaches
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- 4.3 Status of Minjiang River Estuarine Wetlands
- 4.3.2 Current Status of Utilization of Minjiang River Estuarine Region
4.2 Current status of aquatic ecology at the Kuiqi River reachesThe following information on migrant fishes and crabs as well as aquaculture on the lower reaches of the Minjiang River (including the Kuiqi reaches) is furnished by the Fuzhou Municipal Marine and Fishery Bureau. （1）Migrant Fishes and Crabs on the Lower Reaches of the Minjiang River 1) Freshwater Eel. The impact on the eel population is seen mainly from November through March of the following year, when the adult eels starting November successively swim from fresh water to the ocean to spawn., eggs hatch out and develop into elvers, after which they ascend rivers before March the next year to live in fresh water; according to data, each year the quantity of elvers caught at the estuary of the Minjiang River is about 2-3 tons. 2) Chinese Mitten-handed Crab (Eriocheir sinensis). The impact is seen chiefly each year in November to December and May to June. Parent Chinese Mitten-handed crabs from October each year start moving towards the sea to breed, where they spawn; the eggs hatch out and develop into swimming baby crabs that commence to swim towards fresh-water mainly in November to December of each year. （2）Asiatic Clam Farming at the Kuiqi River Reaches The water area south of the proposed site for building the Kuiqi Bridge is a natural Asiatic clam breeding ground. Besides, the local people have 720 mu Asiatic clam farms, which Lianjiang Village, Shaoqi Village, Shishan Village, Fulian Village, Zhangyu Village, villages belonging to Chengmen Town of Cangshan District, also have. 4.3 Status of Minjiang River Estuarine Wetlands4.3.1 Distribution and Types of Minjiang River Estuarine WetlandsBased on the definition in the 1971 Global intergovernmental The estuarine region of the Minjiang River extends from Minhoujuqi on the east to Lianjiangshi Island on the west. The range of the survey included coastal areas along the Minjiang River estuary and the Fuzhou plain, with total wetland area of 467.7 square km, which included riverside wetland about 230.8 sq km, occupying roughly 49.4% of the total wetland area; reservoirs 1.797 sq km, taking up about 0.4% of the total; paddy fields 204.883 sq km, about 43.8% of total; other wetlands about 30.126 sq km, accounting for approximately 6.4% of the total wetland area. The Minjiang River estuary is a riverside beach and sandbank wetland and, extending from Minhouzhuqi to the mouth of the Minjiang River, consists of wetland formed by 7 pieces of sandbank beach, which starting upstream from the river mouth are: Shanyutan Wetland: extending from Meihua Town of Changle City at the Minjiang River mouth to Tantou Town, the wetland mainly consisting of sand beach, aquatic grass mud bank and a mid-river sandbank planted to Horsetail Tree (Casuarina equisetifolia); Bianfuzhou Wetland: situated at Houyu Township, the ecological environment chiefly consisting of sandy mud flats, paddy fields and river bend depressions. Daoqingzhou Wetland: Daoqingzhou is situated at Yangxia Village in the suburbs of Fuzhou, the nearby Mahang Sandbank having on it paddy fields and Common Reed (Phragmites communis) growth. Luqizhou Wetland: situated to the northeast of Chengmen Town of Fuzhou in the north harbor of the Minjiang River, consisting mainly of sandbanks, most of which becomes inundated at high tide, and partly made up of grassy mud flats. Puxiazhou (including Xindangzhou) Wetland: situated in the north harbor to the northeast of Cangshan District, having a diverse ecological environment with sandbanks and grassy mud banks; Tajiaozhou Wetland: situated at the Niaolong River on the north side of Menhouqian Town. Here are large stretches of sand beach and mud flat, which are partly planted to sugarcane (Saccharum officinarum), rice (Oryza sativa), and large numbers of Asiatic Clams (Corbicula fluminea) are farmed on the mud flats. Changanzhou Wetland: situated on the south bank of the Minjiang River towards the northeast of Zhuqi Township of Minhou County, on which grow mainly graminaceous grasses interspersed with herbaceous plants of the families Ranunculaceae, Cyperaceae, Juncaceae and Compositae. 4.3.2 Current Status of Utilization of Minjiang River Estuarine RegionThe Minjiang River estuarine region has been developed and utilized all along, playing immense role in general fish protection, navigation, potable water source, piers in the harbor area, environment ecological protection and conservation, that is, exhibiting multi-functional effect of a wetland. However, concomitant with the rapid growth of economy in the area and continuous population increase, the pressure to utilize the wetlands has been getting greater and greater, and as a consequence the wetland area (especially the Hemantan Wetland) and biodiversity in the region surveyed has been decreasing unremittingly. The deterioration of the ecological environment is regional compelling us to adopt effective protection, in order to realize better development and utilization of the wetlands so as to fully demonstrate their ecological function. At present the water area in our region has been basically developed and utilized, and the riverside beaches and sandbanks also to varying degrees. In recent years, the exploitation of wetland has been especially intense, for instance, large expanses of wetland in Juyuanzhou has been reclaimed for industrial park usage, with only about 200km2 riverside wetland on the periphery (from Juyuanzhoute Bridge to the south of Pushang Road) being reserved for the "Niaolongjiang Wetland Park"; reclamation dikes are now being built upstream of Puxiazhou; most of Makangzhou has already been filled in with sand; extensive dike-building is in progress at Bianfuzhou; on the south of Shanyutan farming of tidal zone fish is being done and on the sandbank ducks are being raised. Land reclamation on the river beaches and development of mid-stream sandbanks, not only progressively reduce the cross-section of the estuary, but also cause many bird species to lose their habitat. Lakes and ponds in the area are being constantly filled-in, many streams and canals in the city are getting narrower, disappearing or even becoming cut-off, or exceeding building space to become "hidden river", with resultant loss or gross decrease of ecological function. Directory: curated curated -> Concept stage curated -> Concept stage curated -> Republic of Côte d'Ivoire Urbanization Review curated -> Report No: aus11011 Central America curated -> Report No. 94474-pk fiscal Disaster Risk Assessment Options for Consideration curated -> Environmental and Social Management Framework for the Costa Rica Telecommunications Sector Modernization Project curated -> Environment Impact Assessment For Jiangxi Shangrao Sanqingshan Airport Beijing Guohuantiandi Environmental Technology Development Center. Ltd. Oct. 2012 Content curated -> Growth through Innovation An Industrial Strategy for Shanghai By Shahid Yusuf Kaoru Nabeshima April 22nd, 2009 curated -> Report No: 70178. 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