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Water hyacinth -- Biological control -- South Africa Aquatic weeds -- South Africa Invasive plants -- South Africa Mites -- South Africa Mites as biological pest control agents -- South Africa Biological pest control agents -- South Africa

Number of Objects: 1

Water hyacinth -- Control -- Environmental aspects -- Ghana Alien plants -- Research -- Ghana Introduced organisms Economic development -- Social aspects -- Research -- Ghana

Number of Objects: 1

Water hyacinth -- Control -- South Africa

Number of Objects: 4

Water hyacinth -- Defenses

Number of Objects: 1

Water hyacinth -- Mozambique Water ferns -- Mozambique Water lettuce -- Mozambique Salvinia molesta -- Mozambique Aquatic weeds -- Mozambique Invasive plants -- Mozambique Aquatic weeds -- Control -- Mozambique Invasive plants -- Control -- Mozambique Aquatic weeds -- Biological control -- Mozambique Invasive plants -- Biological control -- Mozambique Aquatic resources -- Management -- Mozambique Beetles -- Mozambique Insects as biological pest control agents -- Mozambique

Number of Objects: 1

Water hyacinth -- South Africa

Number of Objects: 1

Water hyacinth -- South Africa -- Eastern Cape

Number of Objects: 1

Water hyacinth Biological control

Number of Objects: 1

Water hyacinth South Africa Hartbeespoort

Number of Objects: 1

Water in agriculture

Number of Objects: 2

Water in agriculture -- South Africa -- Eastern Cape

Number of Objects: 1

water infrastructure

Number of Objects: 1

Water justice

Number of Objects: 1

Water lettuce -- Biological control

Number of Objects: 1

Water lettuce -- South Africa

Number of Objects: 1

Water lettuce Madagascar

Number of Objects: 1

Water lilies

Number of Objects: 1

Water lilies -- Biological control -- South Africa

Number of Objects: 1

Water lilies -- Ecology -- South Africa

Number of Objects: 1

Water lilies Biological control South Africa

Number of Objects: 1

Water microbiome -- waste water

Number of Objects: 1

Water Pollution

Number of Objects: 1

Water pollution -- South Africa -- Eastern Cape

Number of Objects: 1

Water pollution control industry

Number of Objects: 1

Water Pollution Law and legislation South Africa

Number of Objects: 1

Water Purification

Number of Objects: 3

Water purification -- South Africa

Number of Objects: 1

Water purification chemicals industry

Number of Objects: 1

Water quality

Number of Objects: 4

Water quality -- Botswana -- Okavango Delta Water -- Analysis Pesticides -- Environmental aspects -- Botswana -- Okavango Delta Water -- Pollution -- Botswana -- Okavango Delta DDT (Insecticide) -- Environmental aspects -- Botswana -- Okavango Delta

Number of Objects: 1

Water quality -- Environmental aspects -- Testing

Number of Objects: 1

Water quality -- Government policy -- South Africa

Number of Objects: 1

Water quality -- Management

Number of Objects: 1

Water quality -- Measurement

Number of Objects: 4

Water quality -- Measurement -- South Africa Water quality -- Mathematical models -- South Africa Streamflow -- South Africa Stream measurements -- Mathematical models -- South Africa

Number of Objects: 1

Water quality -- Nigeria -- Niger River Delta

Number of Objects: 1

Water quality -- Physiological effect -- Komati River Watershed

Number of Objects: 1

Water quality -- South Africa

Number of Objects: 2

Water quality -- South Africa -- Buffalo River (Eastern Cape)

Number of Objects: 1

Water quality -- South Africa -- Eastern Cape

Number of Objects: 2

Water quality -- South Africa -- Eastern Cape -- Swartkops Estuary

Number of Objects: 1

Water quality -- South Africa -- Grahamstown

Number of Objects: 1

Water quality -- South Africa -- Kat River

Number of Objects: 3

Water quality -- South Africa -- Krokodilrivier (Mpumalanga)

Number of Objects: 1

Water quality -- South Africa -- Makhanda

Number of Objects: 2

Water quality -- South Africa -- Sundays River (Eastern Cape)

Number of Objects: 1

Water quality -- South Africa -- Swarkops River Estuary

Number of Objects: 1

Water quality -- South Africa Water quality management

Number of Objects: 1

Water quality -- Uganda

Number of Objects: 1

Water quality -- Zimbabwe

Number of Objects: 1

Water Quality and Sediment Model (WQSED)

Number of Objects: 1

Water quality biological assessment

Number of Objects: 4

Water quality biological assessment -- Kenya

Number of Objects: 1

Water quality biological assessment -- Nigeria -- Niger River Delta

Number of Objects: 1

Water quality biological assessment -- South Africa

Number of Objects: 2

Water quality biological assessment -- South Africa -- Eastern Cape

Number of Objects: 1

Water quality biological assessment -- South Africa -- KwaZulu-Natal

Number of Objects: 1

Water quality biological assessment -- South Africa -- Swartkops River

Number of Objects: 1

Water quality management

Number of Objects: 3

Water quality management -- Mathematical models

Number of Objects: 1

Water quality management -- Social aspects -- South Africa -- Krokodilrivier (Mpumalanga)

Number of Objects: 1

Water quality management -- South Africa

Number of Objects: 11

Water quality management -- South Africa -- Eastern Cape

Number of Objects: 5

Water quality management -- South Africa -- Kat River Valley

Number of Objects: 1

Water quality management -- South Africa -- Krokodilrivier (Mpumalanga)

Number of Objects: 2

Water quality management -- South Africa -- Sabie River

Number of Objects: 1

Water quality management -- South Africa -- Sundays River (Eastern Cape)

Number of Objects: 1

Water quality management -- South Africa Water quality bioassay -- South Africa Sewage sludge -- South Africa -- Management Water -- Purification -- Biological treatment -- South Africa Biosensors

Number of Objects: 1

Water quality management -- South Africa Water quality management -- Environmental Aspects -- South Africa Herbicides -- Environmental aspects -- South Africa Herbicides -- Toxicology -- South Africa Water -- Glyphosate content -- South Africa Water -- Pollution -- South Africa Water quality -- Measurement -- South Africa Water -- Analysis -- South Africa Freshwater ecology -- South Africa Integrated water development -- South Africa Caridina -- Effect of pollution on -- South Africa

Number of Objects: 1

Water quality management -- Study and teaching -- South Africa

Number of Objects: 1

Water quality management South Africa Pietermaritzburg Citizen participation

Number of Objects: 1

Water quality management Zimbabwe Harare

Number of Objects: 1

Water quality Measurement

Number of Objects: 1

Water quality monitoring stations -- Koukamma local municipality

Number of Objects: 1

Water quality South Africa Mpumalanga

Number of Objects: 1

Water quality South Africa Mzimvubu River Watershed

Number of Objects: 1

Water quality South Africa Pietermaritzburg

Number of Objects: 1

Water quality South Africa Vaal Barrage (Reservoir)

Number of Objects: 1

Water resources development -- Africa -- International cooperation

Number of Objects: 1

Water resources development -- Case studies

Number of Objects: 1

Water resources development -- Developing countries

Number of Objects: 1

Water resources development -- Economic aspects Membrane reactors

Number of Objects: 1

Water resources development -- Lesotho Water-supply -- Lesotho Farms, Small -- Lesotho

Number of Objects: 1

Water resources development -- Mozambique

Number of Objects: 1

Water resources development -- South Africa

Number of Objects: 7

Water resources development -- South Africa -- Cost effectiveness

Number of Objects: 1

Water resources development -- South Africa -- Eastern Cape

Number of Objects: 5

Water resources development -- South Africa -- Eastern Cape -- Cost effectiveness

Number of Objects: 1

Water resources development -- South Africa -- Kat River Valley

Number of Objects: 2

Water resources development -- South Africa -- Management Watersheds -- South Africa -- Finance Water resources development -- South Africa -- Finance

Number of Objects: 1

Water resources development -- South Africa -- Southern Cape -- Cost effectiveness

Number of Objects: 1

Water resources development -- Tanzania -- Great Ruaha River Watershed

Number of Objects: 1

Water resources development -- Zambezi River Watershed

Number of Objects: 1

Water resources development -- Zambezi River Watershed Climatic changes -- Zambezi River Watershed Water-supply -- Zambezi River Watershed Water-supply -- Political aspects -- Africa, Southern Water rights -- Africa, Southern Water security -- Africa, Southern Rain and rainfall -- Africa, Southern Rainfall probabilities -- Africa, Southern Food security -- Africa, Southern Drought forecasting -- Africa, Southern Watersheds -- Africa, Southern Water supply -- Measurement -- Africa, Southern

Number of Objects: 1

Water resources development -- Zimbabwe

Number of Objects: 1

Water resources development Eswatini

Number of Objects: 1

Water resources development Sustainable development -- South Africa -- Eastern Cape

Number of Objects: 1

Water resoures development -- Technological innovations -- South Africa

Number of Objects: 1

Water reuse -- South Africa -- Eastern Cape

Number of Objects: 1

Water reuse -- South Africa -- Eastern Cape Water reuse -- Economic aspects -- South Africa Water reuse -- Environmental aspects -- South Africa

Number of Objects: 1