A decision support approach for the selection and implementation of water harvesting techniques in arid and semi-arid regions

Effect of In Situ Water Harvesting Techniques on Soil and Nutrient Losses in Semi‐Arid Northern Ethiopia

“…Average daily temperature ranges between 15 and 25 °C, with a mean of 20 °C. The study area was selected based on a set of criteria established during a stakeholders' workshop for selecting WHTs (Grum et al , ). The experimental site was on the flat valley floor of the sub‐watershed at a mean altitude of 2050 m a.s.l.…”

Design Criteria for Planning the Agricultural Rainwater Harvesting Systems: A Review

“…Likewise, in some cases, communities located in the area are not informed regarding the selection of suitable sites, nor are the sociopolitical aspects that may influence the realization and benefit of the project considered. However, the need to hold meetings with stakeholders has the disadvantage that decision making becomes a challenge when seeking a consensus to obtain the best solution [71].…”

“…A suitability score is used based on the attributes of thematic maps elaborated in a GIS and is superimposed with the hydraulic structure for the use of rainwater proposed for multicriteria evaluation. Finally, the selection of suitable areas is carried out with stakeholders [71].…”

Effect of soil and water conservation measures on hydrological processes and sediment yield in the highlands of North-Western Ethiopia

“…This study confirms the complex and heterogeneous nature of sediment responses in Koga catchment. The high sediment concentrations reflect the abundant supply of sediments from the many freshly ploughed fields and they are variable because sediment concentration depends on erodibility of soil and erosivity of rainstorms (Steenhuis et al, 1995;Haregeweyn et al, 2008;Guzman et al, 2013;Taye et al, 2013;Tilahun et al, 2015;Grum et al, 2016). Therefore, the prevention of soil erosion depends upon selecting appropriate SWC measures which in turn requires a thorough understanding of soil runoff, soil erosion and sedimentation processes (Morgan, 2009).…”

“…Some studies have indicated that the sediment load is reduced in the Ethiopian highlands by land use changes and widespread use of soil and water management strategies such as bund structures, check dams, flood-control ponds and water diversions (Gebrernichael et al, 2005;Gebreegziabher et al, 2009;Nyssen et al, 2010;Adimassu et al, 2014;Rust et al, 2014). However, few measurements are available to quantify the impacts of SWM strategies on soil erosion and sedimentary processes in the Ethiopian highlands, and modelling the linkage of on-site soil erosion rates within a catchment to the sediment yield at the outlet is often lacking due to lack of input data (Steenhuis et al, 1995;Nyssen et al, 2008;Adimassu et al, 2012;Haregeweyn et al, 2013;Grum et al, 2016).…”