David M. Harper – författare
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10 produkter
10 produkter
Inbunden, Engelska, 1991
867 kr
Skickas inom 10-15 vardagar
Inbunden, Engelska, 1999
2 157 kr
Skickas inom 10-15 vardagar
The Ecological Bases for Lake and Reservoir Management provides a state-of-the-art review of the range of ecologically-based techniques necessary for the holistic management of lakes and their catchments. Most of the methods, case studies and national policies reviewed are directed towards management of the largest problem - eutrophication - with the emphasis on the multiple-scale approach needed for successful management and restoration. Case studies come from the USA and ten European countries, and range from single lakes through to lake districts and national inventories. Several essays precede the practical chapters with thought-provoking comments on the political, social and economic climate of water management.
Del 168 - Developments in Hydrobiology
Lake Naivasha, Kenya
Papers submitted by participants at the conference “Science and the Sustainable Management of Shallow Tropical Waters” held at Kenya Wildlife Services Training Institute, Naivasha, Kenya, 11–16 April 1999, together with those from additional studies on the lake
Inbunden, Engelska, 2003
1 082 kr
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This is the first comprehensive study of an east African lake for thirty years. It represents the culmination of research expeditions which stretch back twenty years and is thus able to pick up long term changes which the individual research activities do not reveal. Lake Naivasha is a tropical lake whose natural fluctuations are now dwarfed by human impacts. Papers show how the irrigation for horticulture and power cooling has reduced the lake depth significantly; exotic arrivals have altered the plant community beyond recognition and its commercial value as a fishery and a tourist feature are reduced by over use. Despite this, the lake has considerable conservation value at present. It provides a different case study in the ever-growing library of the effects of human follies. Lake Naivasha has achieved global importance in the past ten years because its waters are used to sustain the largest horticultural industry in Africa. The book highlights its fragility under such pressure and points out the way towards sustainable use of the water and the ecosystem.
Inbunden, Engelska, 2008
1 838 kr
Skickas inom 5-8 vardagar
Ecohydrology is an emerging new sub-discipline which links elements of ecology with hydrology at all points in the water cycle, ranging in scale from water-plant physiological relationships to whole catchment water-ecosystem processes. This book pays most attention to the larger scales of ecohydrology, emphasising the use of this tool in striving towards the goal of sustainable water management. Authors from Eastern as well as Western Europe; from America, Australia and South Africa, give a broad global context.
Häftad, Engelska, 2010
2 157 kr
Skickas inom 10-15 vardagar
The Ecological Bases for Lake and Reservoir Management provides a state-of-the-art review of the range of ecologically-based techniques necessary for the holistic management of lakes and their catchments. Most of the methods, case studies and national policies reviewed are directed towards management of the largest problem - eutrophication - with the emphasis on the multiple-scale approach needed for successful management and restoration. Case studies come from the USA and ten European countries, and range from single lakes through to lake districts and national inventories. Several essays precede the practical chapters with thought-provoking comments on the political, social and economic climate of water management.
Del 168 - Developments in Hydrobiology
Lake Naivasha, Kenya
Papers submitted by participants at the conference “Science and the Sustainable Management of Shallow Tropical Waters” held at Kenya Wildlife Services Training Institute, Naivasha, Kenya, 11–16 April 1999, together with those from additional studies on the lake
Häftad, Engelska, 2011
1 082 kr
Skickas inom 10-15 vardagar
This is the first comprehensive study of an east African lake for thirty years. It represents the culmination of research expeditions which stretch back twenty years and is thus able to pick up long term changes which the individual research activities do not reveal. Lake Naivasha is a tropical lake whose natural fluctuations are now dwarfed by human impacts. Papers show how the irrigation for horticulture and power cooling has reduced the lake depth significantly; exotic arrivals have altered the plant community beyond recognition and its commercial value as a fishery and a tourist feature are reduced by over use. Despite this, the lake has considerable conservation value at present. It provides a different case study in the ever-growing library of the effects of human follies. Lake Naivasha has achieved global importance in the past ten years because its waters are used to sustain the largest horticultural industry in Africa. The book highlights its fragility under such pressure and points out the way towards sustainable use of the water and the ecosystem.
E-bok
PDF, Engelska, 20121 416 kr
Läs direkt efter köp
Häftad, Engelska, 2011
1 082 kr
Skickas inom 10-15 vardagar
Proceedings of a Conference on Rutland Water, held in Leicester, 1-3 April 1981
1 416 kr
Läs direkt efter köp
This is the first comprehensive study of an east African lake for thirty years. It represents the culmination of research expeditions which stretch back twenty years and is thus able to pick up long term changes which the individual research activities do not reveal. Lake Naivasha is a tropical lake whose natural fluctuations are now dwarfed by human impacts. Papers show how the irrigation for horticulture and power cooling has reduced the lake depth significantly; exotic arrivals have altered the plant community beyond recognition and its commercial value as a fishery and a tourist feature are reduced by over use. Despite this, the lake has considerable conservation value at present. It provides a different case study in the ever-growing library of the effects of human follies. Lake Naivasha has achieved global importance in the past ten years because its waters are used to sustain the largest horticultural industry in Africa. The book highlights its fragility under such pressure and points out the way towards sustainable use of the water and the ecosystem.
E-bok
PDF, Engelska, 20132 840 kr
Läs direkt efter köp
The Ecological Bases for Lake and Reservoir Management provides a state-of-the-art review of the range of ecologically-based techniques necessary for the holistic management of lakes and their catchments. Most of the methods, case studies and national policies reviewed are directed towards management of the largest problem - eutrophication - with the emphasis on the multiple-scale approach needed for successful management and restoration. Case studies come from the USA and ten European countries, and range from single lakes through to lake districts and national inventories. Several essays precede the practical chapters with thought-provoking comments on the political, social and economic climate of water management.