Invasion biology of Ponto-Caspian onychopod cladocerans (Crustacea: Cladocera: Onychopoda) |
| |
Authors: | Vadim E Panov Natalie V Rodionova Pavel V Bolshagin Eugene A Bychek |
| |
Institution: | (1) Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008 Nanjing, P.R. China |
| |
Abstract: | Lake Taihu is characterized by its shallowness (mean depth = 1.9 m) and large surface area (2,338 km2). Runoff sources are mostly from the mountainous west and southwest, and outflows are located throughout East Taihu. This
causes shorter retention times in the south. In contrast, urban pollutants discharge into northern Taihu and result in poor
water quality. Non-point pollution from rural areas and sewage wastewater is the primary pollution source. Water current velocity
ranges from 10–30 cm s−1, and surface currents normally follow wind direction. Bottom currents appear to be a compensation flow. Most wave heights
are less than 40 cm, and underwater irradiance correlates to seston in the water column. Lacustrine sediment is distributed
in littoral zones, mostly along the western shoreline, with almost no accumulation in the lake center. Intensive aquaculture
in East Taihu caused eutrophication and hampered water supply in surrounding areas. In addition, development of marshiness
in the eastern littoral zones and East Taihu has occurred. The function of flood discharging of East Taihu has been limited
by flourishing macrophytes. The problems facing in Lake Taihu will be alleviated by improving the management of nutrient sources
into the lake.
Guest editors: B. Qin, Z. Liu & K. Havens
Eutrophication of shallow lakes with special reference to Lake Taihu, China |
| |
Keywords: | Lake Taihu Hydrography Water quality Eutrophication Aquaculture |
本文献已被 SpringerLink 等数据库收录! |
|