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Irrigation development is a policy priority for the Laka Tana basin. However available baseflow can irrigate less than 3% of area. The irrigated area can be increased from water stored in constructed reservoirs, pumping water from Lake Tana and by using groundwater. While groundwater has the grea...


Yiak, D. L.Tilahun, Seifu A.Schmitter, Petra S.Nakawuka, ProssieSteenhuis, Tammo S.[Groundwater recharge of Robit - Bata Experimental Watershed, Lake Tana Basin, Ethiopia [Abstract only]]Groundwater recharge of Robit - Bata Experimental Watershed, Lake Tana Basin, Ethiopia [Abstract only]

Gully erosion in the humid Ethiopian highlands intensified in recent decades. The study was conducted in the Birr watershed located south west of Bahir Dar the capital of Amhara regional state, Ethiopia. We studied 14 gullies having similar morphology at three sub watersheds. The watershed covers...


Addisie, Meseret B.Ayele, Getaneh K.Gessesse, A. A.Tilahun, Seifu A.Zegeye, Assefa D.Moges, M.Schmitter, Petra S.Langendoen, E. J.Steenhuis, Tammo S.[Reducing surface and subsurface water flow effect on gullies through low cost measures [Abstract only]]Reducing surface and subsurface water flow effect on gullies through low cost measures [Abstract only]

The study was conducted in the Birr watershed at twelve gully heads located close to each other. The survey includes measurements of morphological features, soil properties, water table elevations and catchment characteristics including erosion at each gully head. The analysis showed that gully h...


Addisie, Meseret B.Ayele, Getaneh K.Gessess, A. A.Tilahun, Seifu A.Moges, M. M.Schmitter, Petra S.Steenhuis, Tammo S.[Hydro-geomorphological features at gully heads in the humid northern Ethiopian Highlands, Birr Watershed]Hydro-geomorphological features at gully heads in the humid northern Ethiopian Highlands, Birr Watershed

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

Composite agricultural systems with permanent maize cultivation in the uplands and irrigated rice in the valleys are very common in mountainous southeast Asia. The soil loss and fertility decline of the upland fields is well documented, but little is known about reallocation of these sediments wi...


Slaets, J.I.F.Schmitter, Petra S.Hilger, T.Vien, T.D.Cadisch, Georg[Sediment trap efficiency of paddy fields at the watershed scale in a mountainous catchment in northwest Vietnam]Sediment trap efficiency of paddy fields at the watershed scale in a mountainous catchment in northwest Vietnam

The Ethiopian government has declared the Lake Tana - Beles region to be a growth corridor and irrigation development is one of the priorities. Since the dry season river flow is limited, groundwater has the greatest potential for increasing irrigation in the near future. The main drawback is lac...


Yilak, D. L.Tilahun, Seifu A.Schmitter, Petra S.Nakawuka, ProssieEnku, T.Kassawmar, N. T.Steenhuis, Tammo S.[Determining the groundwater potential for agricultural use in Ethiopian Highlands [Abstract only]]Determining the groundwater potential for agricultural use in Ethiopian Highlands [Abstract only]

The Soil Conservation Service Runoff equation was developed and tested for the temperate climate in the United States. Application to the monsoon climates has been only partially successful. The objective to adapt the SCS equation to a monsoon climate equation is to predict watershed runoff. The ...


Yilak, D. L.Tilahun, Seifu A.Schmitter, Petra S.Nakawuka, ProssieHaile, Alemseged TamiruKassawmar, N. T.Guzmán, Christian D.Steenhuis, Tammo S.[Adaptation of the SCS [Soil Conservation Service] runoff equation for a (Sub) humid monsoon climate]Adaptation of the SCS [Soil Conservation Service] runoff equation for a (Sub) humid monsoon climate

Gully erosion in the highlands of Ethiopia has reduced agricultural productivity and degraded ecosystem services. To better understand the processes controlling gully erosion and design effective control measures, a study was conducted in the headwaters of the Birr watershed for three consecutive...


Addisie, Meseret B.Ayele, Getaneh K.Gessesse, A. A.Tilahun, Seifu A.Moges, M. M.Zegeye, Assefa D.Mekuria, Wolde M.Schmitter, Petra S.Langendoen, E. J.Steenhuis, Tammo S.[Rehabilitating gullies with low cost methods, in the sub humid Ethiopian highlands]Rehabilitating gullies with low cost methods, in the sub humid Ethiopian highlands

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