Your search found 4 records
1 Mai, V. T.; Van Keulen, H.; Hessel, R.; Ritsema, C.; Roetter, R. P.; Thai, P. 2007. Soil erosion in Quan Dinh watershed, a hilly area in Tam Duong district, north Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.17-33.
Erosion ; Measurement ; Watersheds ; Sedimentation ; Paddy fields ; Terraces ; Runoff ; Soils ; Land use / Vietnam / Tam Duong District / Red River Delta / Quan Dinh Watershed
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039971)
(3.22 MB)
2 Mai, V. T.; Hessel, R.; Van Keulen, H.; Ritsema, C.; Roetter, R. P. 2007. Simulation of soil erosion in Quan Dinh watershed in Tam Duong district, north Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.35-60.
Erosion ; Simulation models ; Watersheds ; Paddy fields ; Terraces ; Infiltration ; Runoff ; Sedimentation / Vietnam / Tam Duong District / Quan Dinh watershed
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039972)
(3.22 MB)
3 Grum, B; Hessel, R.; Kessler, A.; Woldearegay, K.; Yazew, E.; Ritsema, C.; Geissen, V. 2016. A decision support approach for the selection and implementation of water harvesting techniques in arid and semi-arid regions. Agricultural Water Management, 173:35-47. [doi: https://doi.org/10.1016/j.agwat.2016.04.018]
Water harvesting ; Techniques ; Indicators ; Decision support systems ; Arid zones ; Semiarid zones ; Watersheds ; Socioeconomic environment ; Ecological factors ; Biophysics ; Cultivated land ; Soils ; Rain ; GIS ; Mapping ; Stakeholders ; Case studies / Ethiopia / Upper Geba Watershed
(Location: IWMI HQ Call no: e-copy only Record No: H047605)
(3.70 MB)
Water harvesting techniques (WHTs) improve the availability of water, which is essential for growing crops, especially in arid and semi-arid areas. A decision support approach can help in the selection of WHTs suitable under site-specific bio-physical and socio-economic conditions. This paper describes a participatory approach for the selection of suitable WHTs in watersheds in (semi) arid regions. It builds on a database of suitability indicators for WHTs, which was developed by integrating worldwide knowledge on their suitability. Once developed, the approach was applied on a case study for WHTs in the upper Geba watershed in northern Ethiopia. First, based on evaluation criteria and participants’ scientific and local knowledge, a pre-selection of most promising WHTs took place in a multi-stakeholder workshop. Next, the suitability indicators and a GIS-based multi-criteria analysis (MCA) were used to identify suitable areas for these WHTs. The results of the MCA were presented to stakeholders during a second stakeholder workshop. At this workshop, a final selection of WHTs to test was made based on a participatory ranking of WHTs using economic, ecological and socio-cultural criteria. The MCA approach was validated by comparing the predicted suitable areas with the already existing WHTs in the watershed. This led to the result that 90% of the existing check dams and 93% of the percolation ponds were correctly identified by the approach. We conclude therefore that this approach can be successfully applied for the participatory selection of WHTs and the identification of suitable areas for their implementation. Given that this approach is based on the newly developed database of WHTs, it can be easily applied in other (semi) arid regions.
4 Zenebe, M. G.; Fleskens, L.; Ritsema, C.; van Steenbergen, F. 2022. Enhancing traditional floodwater governance for inclusive and resilient flood-based livelihood systems in Tana River Floodplains, Kenya. Journal of Environmental Planning and Management, 65(4):612-629. [doi: https://doi.org/10.1080/09640568.2021.1897973]
Floodwater ; Water governance ; Livelihoods ; Floodplains ; Water security ; Resilience ; Farmers ; Small scale farming ; Water sharing ; Upstream ; Downstream ; Infrastructure ; Conflicts ; Institutions / Kenya / Tana River Floodplains
(Location: IWMI HQ Call no: e-copy only Record No: H051050)
https://www.tandfonline.com/doi/pdf/10.1080/09640568.2021.1897973
https://vlibrary.iwmi.org/pdf/H051050.pdf
https://vlibrary.iwmi.org/pdf/H051050.pdf
(1.83 MB) (1.83 MB)
This paper analyses the effectiveness of traditional water governance in Flood-based Livelihood Systems (FBLS), which harness floods that could have caused environmental degradation. Ostrom’s Governing the Commons Principles, widely recognized for the effective management of shared resources, is used as a framework. The paper draws from discussions with 300 farmers and pastoralists in Tana River FBLS, the oldest traditional system in Kenya. The traditional floodwater governance does not satisfy Ostrom's Principles and livelihood needs. Small-scale farmers and pastoralists frequently experience floodwater scarcity while large-scale farmers use excessive floods often causing waterlogging. This floodwater sharing disparity generates conflicts and threatens small-scale farmers’ and pastoralists’ livelihoods. Large-scale farmers are primarily concerned with inadequate floodwater management infrastructure that hampers maximizing their harvest. For increased sustainability and equity, fairer floodwater sharing systems and enforcing institutions should be introduced before infrastructural development. These lessons from Tana River can contribute to a larger livelihood potential for flood-based agriculture globally.
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