By N. A. Burke, J. A. Thornton (auth.), Jeffrey A. Thornton, W. K. Nduku (eds.)
'And God acknowledged, allow there be a firmament in the course of the waters, and permit it divide the waters from the waters. ' Genesis 1:6 Lake McIlwaine is an artificial lake. It was once shaped in 1952 via the Hunyani poort Dam and is positioned at the Hunyani River a few 37 km southwest of Salisbury* within the Republic of Zimbabwe**. it's a lake of many facets: being a well-liked leisure web site, the City's fundamental water provide reservoir (and the fourth greatest impoundment in Zimbabwe), a resource of irrigation water to downstream farms, a big fishery, and, till the Seventies, the receptacle of Salisbury's sewage effluent. it truly is, in brief, ordinary of such a lot of 'urban' lakes in Africa and during the international. Lake McIlwaine is additionally specific, to my wisdom: being among the 1st of the key man-made lakes at the continent to be afflicted by what's referred to as cultural eutrophication, and the 1st to be r:ehabilitated to a mesotrophic kingdom via a rational programme of lake administration. This quantity synthesizes this technique of eutrophication and restoration by way of the geology and geography (Chapter 2), physics (Chapter 3), chemistry (Chapter four) and biology (Chapter five) of the lake, and, while dialogue of the trophic relationships among those elements is past the scope of this monograph, discusses its utilisation, conservation and administration (Chapter 6). * next to writing, the identify of the Zimbabwean capital was once replaced to Harare on 18 April 1982. - Ed.
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Extra resources for Lake Mcilwaine: The Eutrophication and Recovery of a Tropical African Man-Made Lake
Example text
Hebbert and L Loh, 1978. Dynamics of a reservoir of medium size. J. Hydraul. Div. Am. Soc. civ. , 104 (HY5): 725-743. J assby, A. and T. Powell, 1975. Vertical patterns of eddy diffusion during stratifications in Castle Lake, California. Limnol. , 20: 530-543. Robarts, R. D. and P. R. B. Ward, 1978. Vertical diffusion and nutrient transport in a tropical lake (Lake McIlwaine, Rhodesia). ; 59: 213-220. Thornton, J. , 1980. Factors influencing the distribution of reactive phosphorus in Lake McIlwaine, Zimbabwe.
6). , 1960; Marshall and Falconer, 1973; Thornton, 1980a). 'Spring' is a hot dry season which falls between September and November. Intense rainfall is unlikely to occur although light falls may be expected. Average daily temperatures are approximately 22°C :±: 6°C. 'Summer' is commonly known as the rainy season, and is characterised by being hot and wet. This season covers the period between December and April, and average daily tempeatures are approximately 20°C:±: 6°C. The third season is cold and dry, and corresponds to 'Winter' in other parts of the 36 world.
Soc. civ. , 104 (HY5): 725-743. J assby, A. and T. Powell, 1975. Vertical patterns of eddy diffusion during stratifications in Castle Lake, California. Limnol. , 20: 530-543. Robarts, R. D. and P. R. B. Ward, 1978. Vertical diffusion and nutrient transport in a tropical lake (Lake McIlwaine, Rhodesia). ; 59: 213-220. Thornton, J. , 1980. Factors influencing the distribution of reactive phosphorus in Lake McIlwaine, Zimbabwe. Phil. , University of Zimbabwe. US Army Corps of Engineers, 1973. Shore protection manual.