Chodzi tu zapewne o obecną infrastrukturę wodną, o czym mówi np. ten artykuł:
http://wod-kan.inzynieria.com/cat/1/art/26519

Potwierdzałby to również poniższy fragment:

Studies have shown that agriculture consumes between 70 and 90 per cent or more of the world’s developed freshwater supplies. 2000 to 5000 litres of water are needed to produce enough food to feed one person each day. An increase in water productivity will reduce agriculture’s drain on resources, and free up water for other water users such as cities and nature. It will also reduce the need for investments in new water storage and irrigation infrastructure – investments many countries can’t afford. [...] “In Sub-Saharan Africa, there remains scope for developing water resources and the key questions is what type – large or small ? “ explains David Molden. “Most African countries need locally appropriate solutions to increase water productivity that bring individual economic benefits and make the most of limited supplies”.

http://www.iwmi.cgiar.org/Assessment/Newsroom/Booklaunch-311...