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The Nile Delta and its 2.27 million ha of irrigated land makes up two thirds of Egypt’s agricultural land. It is also the terminal part of a river basin that spans and feeds 11 countries. Increases in dam and irrigation development in upstream parts of the basin is poised to conflict with agricul...


Molle, FrancoisGaafar, I.El-Agha, Doaa E.Rap, Edwin[The Nile Delta’s water and salt balances and implications for management]The Nile Delta’s water and salt balances and implications for management

Low-impact development (LID) comprises a broad spectrum of stormwater management technologies for mitigating the impacts of urbanization on hydrological processes. Among these technologies, green roofs are one of the most adopted solutions, especially in densely populated metropolitan areas, wher...


Schmitter, Petra S.Goedbloed, A.Galelli, S.Babovic, V.[Effect of catchment-scale green roof deployment on stormwater generation and reuse in a tropical city]Effect of catchment-scale green roof deployment on stormwater generation and reuse in a tropical city
Mateo-Sagasta, JavierDrechsel, Pay[Water reuse in Africa and the sustainable development goals]Water reuse in Africa and the sustainable development goals

Irrigation using untreated wastewater poses health risks to farmers and consumers of crop products, especially vegetables. With hardly any wastewater treatment in Ghana, a multiple-barrier approach was adopted and safe re-use practices were developed through action research involving a number of ...


Keraita, Bernard N.Abaidoo, R.C.Beernaerts, InesKoo-Oshima, SashaAmoah, PhilipDrechsel, PayKonradsen, Flemming[Safe re-use practices in wastewater-irrigated urban vegetable farming in Ghana.]Safe re-use practices in wastewater-irrigated urban vegetable farming in Ghana.

Phosphorus (P) is a critical, geographically concentrated, nonrenewable resource necessary to support global food production. In excess (e.g., due to runoff or wastewater discharges), P is also a primary cause of eutrophication. To reconcile the simultaneous shortage and overabundance of P, lost ...


Mayer, B.K.Baker, L.A.Boyer, T.H.Drechsel, PayGifford, M.Hanjra, Munir A.[Total value of phosphorus recovery]Total value of phosphorus recovery

Billions of people currently lack clean water and sanitation. By 2050 the global population will have grown to nearly 10 billion, over two-thirds of whom will live in urban areas. This Voices asks: what are the research and water-management priorities to ensure clean water and sanitation in the w...


Jamwal, P.Brown, R.Kookana, R.Drechsel, PayMcDonald, R.Vorosmarty, C.J.Vliet, M.T.H. vanBhaduri, Anik[The future of urban clean water and sanitation]The future of urban clean water and sanitation

When urban areas expand without concomitant increases in wastewater treatment capacity, vast quantities of wastewater are released to surface waters with little or no treatment. Downstream of many urban areas are large areas of irrigated croplands reliant on these same surface water sources. Case...


Thebo, A.L.Drechsel, PayLambin, E.F.Nelson, K.L.[A global, spatially-explicit assessment of irrigated croplands influenced by urban wastewater flows]A global, spatially-explicit assessment of irrigated croplands influenced by urban wastewater flows

The main purpose of this paper is to estimate farmers’ preferences and their willingness to pay (WTP) for ecosystem services derived from four agricultural water management (AWM) and resource recovery and reuse (RRR) intervention options in Burkina Faso, using a choice experiment (CE). These incl...


Houessionon, ProsperFonta, William M.Bossa, A.Y.Sanfo, S.Thiombiano, N.Zahonogo, P.Yameogo, T.B.Balana, Bedru B.[Economic valuation of ecosystem services from small-scale agricultural management interventions in Burkina Faso: a discrete choice experiment approach]Economic valuation of ecosystem services from small-scale agricultural management interventions in Burkina Faso: a discrete choice experiment approach
Kuppannan, Palanisami[Improving drainage for increasing crop and water productivity in canal systems]Improving drainage for increasing crop and water productivity in canal systems

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