Your search found 12 records
1 Depeweg, H.; Bekheit, K. H. 1997. Evaluation of proposed mesqa improvements. Irrigation and Drainage Systems, 11(4):299-322.
Irrigation canals ; Flow control ; Downstream control ; Rehabilitation ; Water user associations ; Water distribution ; Water control ; Design criteria ; Simulation ; Computer models ; Pipes ; Pumps ; Performance evaluation ; Performance indexes / Egypt / Bahr El Saidi
(Location: IWMI-HQ Call no: PER Record No: H021826)
2 Sanaee-Jahromi, S.; Depeweg, H.; Feyen, J. 2000. Water delivery performance in the Doroodzan Irrigation Scheme, Iran. Irrigation and Drainage Systems, 14(3):207-222.
Water delivery ; Irrigation programs ; Performance indexes ; Performance evaluation ; Indicators / Iran
(Location: IWMI-HQ Call no: PER Record No: H027194)
3 Depeweg, H.; MTndez, N. 2002. Sediment transport applications in irrigation canals. Irrigation and Drainage, 51(2):167-179.
(Location: IWMI-HQ Call no: PER Record No: H029964)
4 Depeweg, H.; Paudel, K. P. 2003. Sediment transport problems in Nepal evaluated by the setric model. Irrigation and Drainage, 52(3):247-260.
(Location: IWMI-HQ Call no: PER Record No: H034083)
5 Depeweg, H.; Otero, M. F. 2004. Optimization of water management in the Rut Irrigation District, Colombia. Irrigation and Drainage, 53(1):55-67.
Water balance ; Groundwater ; Irrigation requirements ; Irrigation canals ; Pumping ; Operations ; Rain ; Cropping systems ; Drainage / Colombia / Rut Irrigation District
(Location: IWMI-HQ Call no: PER Record No: H034487)
6 Depeweg, H.; Urquieta, E. R. 2004. GIS tools and the design of irrigation canals. Irrigation and Drainage, 53(3):301-314.
(Location: IWMI-HQ Call no: PER Record No: H035700)
7 Ismail, S. M.; Depeweg, H.; Schultz, B. 2004. Surge flow irrigation under short field conditions in Egypt. Irrigation and Drainage, 53(4):461-475.
(Location: IWMI-HQ Call no: PER Record No: H036096)
8 Mehari, A.; Schultz, B.; Depeweg, H.. 2005. Where indigenous water management practices overcome failures of structures: The Wadi Laba spate irrigation system in Eritrea. Irrigation and Drainage, 54(1):1-14.
(Location: IWMI-HQ Call no: PER Record No: H036885)
9 Ismail, S. M.; Depeweg, H.. 2005. Water productivity and crop production simulation under surge flow irrigation in short furrows in Egypt. Irrigation and Drainage, 54(1):103-113.
Surge irrigation ; Simulation models ; Crop yield ; Crop production ; Water use efficiency ; Soil properties / Egypt
(Location: IWMI-HQ Call no: PER Record No: H036893)
10 Ismail, S. M.; Depeweg, H.. 2005. Simulation of continuous and surge flow irrigation under short field conditions. Irrigation and Drainage, 54(2):217-230.
(Location: IWMI-HQ Call no: PER Record No: H036960)
11 Mehari, A.; Depeweg, H.; Schultz, B. 2005. Hydraulic performance evaluation of the Wadi Laba spate irrigation system in Eritrea. Irrigation and Drainage, 54(4):389-406.
(Location: IWMI-HQ Call no: PER Record No: H037815)
12 Hagos, E. Y.; Schultz, B.; Depeweg, H.. 2016. Reservoir operation in view of effective utilization of limited water in semi-arid areas the case of Gumsalasa Earthen Dam Irrigation Scheme in Tigray, Ethiopia. Irrigation and Drainage, 65(3):294-307. [doi: https://doi.org/10.1002/ird.1968]
Reservoir operation ; Water use efficiency ; Irrigation schemes ; Dams ; Irrigation scheduling ; Irrigation canals ; Performance evaluation ; Water balance ; Rainfed farming ; Crop yield ; Water requirements ; Evaporation ; Semiarid zones ; Irrigated land ; Seepage ; Food security ; Case studies / Ethiopia / Tigray / Gumsalasa Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H047682)
(1.29 MB)
Tigray is one of the semi-arid and drought-prone regions of Ethiopia. The rainfed agriculture is characterized by low productivity and the region faces an average annual cereal food deficit of 180 000 t. Realizing these problems, the regional government has been engaged in earthen dam irrigation development activities since 1995. So far 44 earthen dams with related irrigation facilities have been constructed. The Gumsalasa earthen dam was constructed in 1995 with a reservoir capacity of 1.9 million m3 , which irrigates about 67 ha. In Tigray the main irrigation season starts in January, which is four months after the end of the main rainy season. The reservoir is therefore exposed to evaporation during these four months. This demands formulation and implementation of an operational plan that can reduce losses and increase the benefits. In this regard, a change in reservoir operation from the present (January– June) to the proposed (September–January) has shown the possibility of increasing the irrigated area and the number of farmers. This indicates the potential of the proposed change to contribute towards regional food security if it is practised at existing and future earthen dam irrigation schemes in Tigray.
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