Your search found 7 records
1 Loiskandl, W.; Klik, A.; Baumer, O. W. 1996. Automated soil water monitoring in Eastern Austria. In Camp, C. R.; Sadler, E. J.; Yoder, R. E. (Eds.), Evapotranspiration and irrigation scheduling: Proceedings of the International Conference, November 3-6, 1996, San Antonio Convention Center, San Antonio, Texas. St. Joseph, MI, USA: ASAE. pp.910-915.
(Location: IWMI-HQ Call no: 631.7.1 G000 CAM Record No: H020680)
2 Awulachew, Seleshi Bekele; Yilma, A. D.; Loulseged, M.; Loiskandl, W.; Ayana, M.; Alamirew, T. 2007. Water resources and irrigation development in Ethiopia. Colombo, Sri Lanka: International Water Management Institute (IWMI). 66p. (IWMI Working Paper 123) [doi: https://doi.org/10.3910/2009.305]
Water resources ; Water potential ; River basins ; Lakes ; Reservoirs ; Water use ; Irrigation programs / Ethiopia / Abbay River Basin / Awash River Basin / Denakil River Basin / Genale Dawa River Basin / Wabi Shebele River Basin / Baro Akobo River Basin / Tekeze River Basin / Omo Ghibe River Basin / Rift Valley Basin / Mereb River Basin / Aysha River Basin / Ogaden River Basin / Amhara Regional State Irrigation Scheme / Oromia Region Irrigation Scheme / Tigray Region Irrigation Scheme
(Location: IWMI HQ Call no: IWMI 631.7 G136 AWU Record No: H040631)
(462KB)
3 Ruffeis, D.; Loiskandl, W.; Awulachew, Seleshi Bekele; Boelee, Eline. 2010. Evaluation of the environmental policy and impact assessment process in Ethiopia. Impact Assessment and Project Appraisal, 28(1):29-40. [doi: https://doi.org/10.3152/146155110X488844]
(Location: IWMI HQ Call no: e-copy only Record No: H042787)
(0.10 MB)
This paper reviews the Ethiopian Environmental Policy with focus on the institutional set-up and implemented Environmental Impact Assessment (EIA) procedures. The evaluation of EIA is done against a set of evaluation criteria. Specific legal provision for EIA application is well documented and the Environmental Protection Authority exists as the legal body. A chronological evaluation of the establishment of the environmental policy reveals that this process was more a result of donor requirements than of political will. Inconsistency on institutional level, non-existence of complementarities between institutions, and of environmental and investment policy and proclamations, contradict the enforcement of the EIA law. Furthermore lack of multidisciplinary experts, missing environmental baseline data, and lack of monitoring and post-auditing adversely affect the effectiveness of the EIA law. The paper concludes that, besides other important measures, the Ethiopian EIA law needs to be adapted.
4 Marjanizadeh, S.; de Fraiture, Charlotte; Loiskandl, W.. 2010. Food and water scenarios for the Karkheh River Basin, Iran. Water International, 35(4):409-424. [doi: https://doi.org/10.1080/02508060.2010.506263]
Food production ; Irrigated farming ; Wheat ; Self sufficiency ; Policy ; Models ; Groundwater ; River basins / Iran / Karkheh River Basin
(Location: IWMI HQ Call no: PER Record No: H043155)
Increasing population and income and a wheat self-sufficiency policy are already stressing Iran’s strategic Karkeh River Basin. Examining three scenarios to the year 2025, the authors of this study find: (1) business as usual leads to an aggravation of groundwater overdraft and may jeopardize the ecosystem services provided by the Hawr Al Azim marsh area; (2) giving priority to environmental flow requirements and restoring groundwater tables leads to a shortfall in wheat production; but (3) reducing agricultural water demand could maintain a certain level of food production. Appropriate policy could minimize the tradeoffs between food self-sufficiency, sustainable water use and farmers’ income.
5 Loiskandl, W.; Ruffeis, D.; Schonerklee, M.; Spendlingwimmer, R.; Awulachew, Seleshi Bekele; Boelee, Eline. 2008. Case study review of investigated irrigation projects in Ethiopia. In Awulachew, Seleshi Bekele; Loulseged, Makonnen; Yilma, Aster Denekew (Comps.). Impact of irrigation on poverty and environment in Ethiopia: draft proceedings of the symposium and exhibition, Addis Ababa, Ethiopia, 27-29 November 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.357-369.
(Location: IWMI HQ Call no: e-copy only Record No: H044102)
(0.47 MB) (0.28 MB)
6 Ruffeis, D.; Loiskandl, W.; Spendlingwimmer, R.; Schonerklee, M.; Awulachew, Seleshi Bekele; Boelee, Eline; Wallner, K. 2008. Environmental impact analysis of two large scale irrigation schemes in Ethiopia. In Awulachew, Seleshi Bekele; Loulseged, Makonnen; Yilma, Aster Denekew (Comps.). Impact of irrigation on poverty and environment in Ethiopia: draft proceedings of the symposium and exhibition, Addis Ababa, Ethiopia, 27-29 November 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.370-388.
Irrigation schemes ; Large scale systems ; Environmental effects ; Soil properties ; Water quality ; Erosion ; Soil degradation ; Ecosystems / Ethiopia / Wonji/Shoa Irrigation System / Finchaa Valley Irrigation System
(Location: IWMI HQ Call no: e-copy only Record No: H044103)
(0.87 MB)
This article presents the finding of a study undertaken to assess the status-quo and significant environmental impacts of two selected large-scale irrigation on natural resources in Ethiopia. Main focus is on the environmental impacts of irrigation on natural resources with special emphasis on soil quality, water quality and downstream impacts, hydrology and potential interference with ecosystems. For this purpose two schemes were selected. Wonji/Shoa Sugar Plantation is located in the Upper Awash Basin and Finchaa Valley Sugar Estate located in the Blue Nile Basin. It is well known that irrigation projects can have several adverse environmental impacts that may threaten the sustainable production of agricultural goods, which is of major importance and interest in Ethiopia since it contributes 44 percent to Ethiopia’s GDP, employs 80 percent of the labor force, and provides a livelihood to 85 percent of the nearly 80 million population (Awulachew, 2006, Government of Ethiopia, 2006, UNDP, 2006). Irrigation projects inter alia can have potential impacts on the hydrological characteristics of aquifers, quality of downstream water bodies, quality of soils and ecosystems. The most prominent results and environmental impacts of the selected case study sites could be summarized as follows. In general the irrigation water is of good quality, but the electric conductivity is unfavorable to the adjusted sodium ratio, which leads in some instances to soil crusting and has a negative impact on infiltration rate. In Wonji/Shoa the groundwater table has risen due to improper irrigation management and seepage of reservoirs. In Fincha a valuable ecosystem has been destroyed due to the establishment of the scheme and increased migration.
7 Ruffeis, D.; Loiskandl, W.; Spendlingwimmer, R.; Schonerklee-Grasser, M.; Awulachew, Seleshi Bekele; Boelee, Eline; Wallner, K. 2010. Assessment of potential environmental impacts of two large scale irrigation schemes in Ethiopia. Ethiopian Journal of Development Research, 32(2):63-105.
Irrigation development ; Irrigation schemes ; Irrigation water ; Environmental effects ; Environmental policy ; Satellite surveys ; Groundwater ; Hydrology ; Sugar crops ; Soil sampling ; Ecosystems ; Valleys ; Erosion / Ethiopia
(Location: IWMI HQ Call no: IWMI Record No: H045761)
(3.11 MB)
This article presents the findings of a study undertaken to assess environmental impacts of two selected large scale irrigation schemes on natural resources in Ethiopia. The study puts special emphasis on linkages and implications of the utilized water source, ground water hydrology and soil characteristics, on the sustainability of the selected 5chemes. In addition, potential interference of irrigation projects with woodland ecosystems is highlighted. For this purpose primary soil and water data and data from research reports from Wonji/Shoa Sugar Plantation and Finchaa Valley Sugar Estate were collected and analysed using a "before-after" and "with or without" type of analysis. Rising oj groundwater table, water logged within the root zone of the cultivated sugar cane and elevated EC values within 1m of soil depth indicate the· risk of secondary alinization at Wonji/Shoa Sugar Plantation. Unfavourable EC, SAR and RNa values ofthe utilized irrigation source in combination with the CEC ofsoil and ongoing soil erosion processes suggests that irrigation might lead to long-term infiltration problems and destruction of the soil structure at Fincha Sugar Estate. The establishment of the scheme and migration tendencies increased the pressure on the eco-system ofthe valleys and led to clearing of wood and grass lands. To guarantee long-term sustainability, proper study and continuous research of aLready implemented and planned large s.cale irrigation projects is necessary, so that the positive roles of irrigation could be enhanced and timely mitigation measures taken for the negative impacts.
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