Download Eutrophication of Shallow Lakes with Special Reference to by Boqiang Qin PDF

By Boqiang Qin

Eutrophication and algal blooms are world wide environmental concerns in lakes. The eutrophication approach and formation mechanisms of algal blooms are relatively advanced in shallow lakes as a result robust lake land, air water and water sediment interactions. This quantity beneficial properties papers provided on the foreign Symposium at the Eutrophication approach and keep an eye on in huge Shallow Lakes - with particular connection with Lake Taihu, a Shallow Subtropical chinese language Lake, held in Nanjing, China, 22 26 April, 2005. the subjects comprise: actual methods and their results on shallow lake ecosystems; biogeochemistry of sediments and nutrient biking in shallow lakes; algal blooms and atmosphere reaction in shallow lakes; eutrophication keep an eye on and recovery in shallow lakes; and source exploitation, environmental defense and sustainable administration in shallow lakes. This quantity will make an important contribution to the knowledge and administration of eutrophication in shallow lakes.

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Additional info for Eutrophication of Shallow Lakes with Special Reference to Lake Taihu (Developments in Hydrobiology) (Developments in Hydrobiology)

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J. & K. E. Havens, 1995. Historical trends in the Lake Okeechobee ecosystem I. Land use and nutrient loading. Archiv fu¨r Hydrobiologie, Supplement 107: 1–24. , 1982. Lake bottom dynamics and morphometry: the dynamic ratio. Water Resources Research 18: 1444–1450. Hamilton, D. P. & S. F. Mitchell, 1997. Wave-induced shear stresses, plant nutrients, and chlorophyll in seven shallow lakes. Freshwater Biology 38: 159–168. Hanlon, C. , R. L. Miller & B. F. McPherson, 1999. Relationships between wind velocity and underwater irradiance in a shallow lake (Lake Okeechobee, Florida, USA).

As a result, the concentration of TP is more likely to remain elevated over multiple days, with less intra-daily variation. Passive diffusion of P from lake sediments to the water column also can be important in shallow eutrophic lakes, as in deeper systems. However, when Fe chemistry regulates P release, the flux will depend on the occurrence of calm conditions of a sufficient duration to allow thermal stratification and bottom water anoxia. 1 mg l–1 at sediment depths below 10 cm (Moore & Reddy, 1994).

They concluded that the increase in SRP is limited by the high Fe content of this lake’s sediments, and their low equilibrium P concentration, which Hydrobiologia (2007) 581:25–42 -1 Lake TP (ug L ) 200 150 100 50 0 -1 Inflow TP (ug L ) 400 300 200 100 19 73 19 76 19 79 19 82 19 85 19 88 19 91 19 94 19 97 20 00 20 03 0 Fig. 10 Monthly mean concentrations of total phosphorus (TP) for Lake Okeechobee pelagic zone and inflows, from 1973 to 2002. The line indicates a long-term trend in the data for pelagic TP.

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