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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

Load estimates are more informative than constituent concentrations alone, as they allow quantification of on- and off-site impacts of environmental processes concerning pollutants, nutrients and sediment, such as soil fertility loss, reservoir sedimentation and irrigation channel siltation. Whil...


Slaets, J.I.F.Piepho, Hans-PeterSchmitter, Petra S.Hilger, T.Cadisch, Georg[Quantifying uncertainty on sediment loads using bootstrap confidence intervals]Quantifying uncertainty on sediment loads using bootstrap confidence intervals

Maintaining indigenous nutrient supply and positive nutrient balances are key factors in sustaining rice yields. Irrigation systems act as conveyers for water, sediments and nutrients throughout landscapes, especially in mountainous, cultivated tropical areas where erosivity is usually high. Cont...


Slaets, J.I.F.Schmitter, Petra S.Hilger, T.Hue, D.T.T.Piepho, Hans-PeterVien, T.D.Cadisch, Georg[Sediment-associated organic carbon and nitrogen inputs from erosion and irrigation to rice fields in a mountainous watershed in Northwest Vietnam]Sediment-associated organic carbon and nitrogen inputs from erosion and irrigation to rice fields in a mountainous watershed in Northwest Vietnam

Purpose - Agricultural intensification to meet the food needs of the rapidly growing population in developing countries affects water quality. In regions such as the Lake Tana basin, knowledge is lacking on measures to reduce non-point source pollutants in humid tropical monsoon climates. The aim...


Moges, M.A.Schmitter, Petra S.Tilahun, Seifu A.Steenhuis, Tammo S.[Watershed modeling for reducing future non-point source sediment and phosphorus load in the Lake Tana Basin, Ethiopia]Watershed modeling for reducing future non-point source sediment and phosphorus load in the Lake Tana Basin, Ethiopia
Rebelo, Lisa-MariaFinlayson, C. MaxStrauch, A.Rosenqvist, A.Perennou, C.Totrup, C.Hilarides, L.Paganini, M.Wielaard, N.Siegert, F.Ballhorn, U.Navratil, P.Franke, J.Davidson, N.[The use of earth observation for wetland inventory, assessment and monitoring: an information source for the Ramsar Convention on wetlands]The use of earth observation for wetland inventory, assessment and monitoring: an information source for the Ramsar Convention on wetlands
Anarbekov, OytureGaypnazarov, NorboyAkramov, IsomiddinGafurov, ZafarDjumaboev, KakhramonSolieva, UmidaKhodjaev, ShovkatYuldashev, TulkinAkramov, BekzodMurzaeva, Makhliyo[Assessment of the current situation of the Aksu River Basin in Kashkadarya Region: analytical report]Assessment of the current situation of the Aksu River Basin in Kashkadarya Region: analytical report

In many parts of the world, wastewater irrigation has become a common practice because of freshwater scarcity and to increase resource reuse efficiency. Wastewater irrigation has positive impacts on livelihoods and at the same time, it has adverse impacts related to environmental pollution. Hydro...


Jampani, M.Liedl, R.Hulsmann, S.Sonkamble, S.Amerasinghe, Priyanie H.[Hydrogeochemical and mixing processes controlling groundwater chemistry in a wastewater irrigated agricultural system of India]Hydrogeochemical and mixing processes controlling groundwater chemistry in a wastewater irrigated agricultural system of India

Target 6.4 of the recently adopted Sustainable Development Goals (SDGs) deals with the reduction of water scarcity. To monitor progress towards this target, two indicators are used: Indicator 6.4.1 measuring water use efficiency and 6.4.2 measuring the level of water stress (WS). This paper aims ...


Vanham, D.Hoekstra, A.Y.Wada, Y.Bouraoui, F.Roo, A. deMekonnen, M.M.Bund, W.J. van deBatelaan, O.Pavelic, PaulBastiaanssen, Wim G.M.Kummu, M.Rockström, JohanLiu, J.Bisselink, B.Ronco, P.Pistocchi, A.Bidoglio, G.[Physical water scarcity metrics for monitoring progress towards SDG target 6.4: An evaluation of indicator 6.4.2 “Level of water stress”]Physical water scarcity metrics for monitoring progress towards SDG target 6.4: An evaluation of indicator 6.4.2 “Level of water stress”
Pavelic, PaulHoanh, Chu ThaiViossanges, MathieuVinh, B. N.Chung, D. T.D’haeze, D.Dat, L. Q.Ross, A.[Managed aquifer recharge for sustaining groundwater supplies for smallholder coffee production in the central highlands of Vietnam: report on pilot trial design and results from two hydrological years (May 2017 to April 2019). [Contribution to WLE project - Sustainable Groundwater].]Managed aquifer recharge for sustaining groundwater supplies for smallholder coffee production in the central highlands of Vietnam: report on pilot trial design and results from two hydrological years (May 2017 to April 2019). [Contribution to WLE project - Sustainable Groundwater].

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