Your search found 116 records
1 1998. 1997 annual irrigation survey. Irrigation Journal, 48(1):22-32.
(Location: IWMI-HQ Call no: PER Record No: H05019)
2 Purwanto, M. Y.; Hardjoamidjojo, S. 1998. Study on water saving through implementation of gogorancah (dry seeding rice cultivation) system in irrigated paddy field. In ICID, The Tenth Afro-Asian Regional Conference Proceedings: Water and land resources development and management for sustainable use, Denpasar, Bali, Indonesia, 19-24 July 1998. Volume II - A. Jakarta, Indonesia: Indonesian National Committee on Irrigation and Drainage (INACID) pp.A30:1-8.
(Location: IWMI-HQ Call no: ICID 631.7 G570 ICI Record No: H023436)
(Location: IWMI HQ Call no: IIMI 631.7.8 G730 IIM Record No: H021782)
4 Lazarova, V.; Bahri, Akissa. 2008. Water reuse practices for agriculture. In Jimenez, B.; Asano, T. (Eds.). Water reuse: an international survey of current practice, issues and needs. London, UK: IWA Publishing. pp.199-227. (IWA Scientific and Technical Report 20)
(Location: IWMI HQ Call no: 363.7284 G000 JIM Record No: H041553)
5 Kumar, M. Dinesh; Turral, Hugh; Sharma, Bharat R.; Amarasinghe, Upali A.; Singh, O. P. 2008. Water saving and yield enhancing micro-irrigation technologies in India: when and where can they become best bet technologies? Kumar, M. Dinesh (Ed.). Managing water in the face of growing scarcity, inequity and declining returns: exploring fresh approaches. Proceedings of the 7th Annual Partners Meet, IWMI TATA Water Policy Research Program, ICRISAT, Patancheru, Hyderabad, India, 2-4 April 2008. Vol.1. Hyderabad, India: International Water Management Institute (IWMI), South Asia Sub Regional Office. pp.1-36.
(Location: IWMI HQ Call no: IWMI 631.7 G635 KUM Record No: H041700)
(Location: IWMI HQ Call no: e-copy only Record No: H041695)
(0.26 MB)
Farmers in rural Ethiopia live in a shock-prone environment. The major source of shock is the persistent variation in the amount and distribution of rainfall. The dependence on unreliable rainfall increases farmers’ vulnerability to shocks while also constraining farmers’ decisions to use yield-enhancing modern inputs exacerbating household’s vulnerability to poverty and food insecurity. As a response, the government of Ethiopia has embarked on massive investment in low cost agricultural water management technologies (AWMTs). Despite these huge investments, their impact remains hardly understood.
The main focus of this paper was to explore whether access to selected AWMTs, such as deep and shallow wells, ponds, river diversions and small dams, has led to significant reduction in poverty, and if they did to identify which technologies have higher impacts. In measuring impact we followed different approaches: mean separation tests, propensity score matching and poverty analysis. The study used a unique dataset from a representative sample of 1517 households from 29 Kebeles in four regions of Ethiopia. Findings indicated that the estimated average treatment effect was significant and amounted to USD 82/ household. Moreover, there was 22% less poverty among users of AWMTs compared to non-users. The poverty impact of AWMT was also found to differ by technology type. Accordingly, deep wells, river diversions and micro dams have led to 50, 32 and 25 percent reduction in poverty levels compared to the reference, i.e. rain fed system. Finally, our study identified the most important determinants of poverty on the basis of which we made the policy recommendations: i) build assets; ii) human resource development; and iii) improve the functioning of labor markets and access to markets (input or output markets) for enhanced impact of AWMT on poverty.
7 Absalan, S.; Dehghan, E.; Abbasi, F.; Heydari, N.; Farahani, H.; Qadir, Manzoor; Javadi, A.; Siadat, H.; Oweis, T. 2008. Evaluation of the best management practices for improving water productivity in the salt-prone areas of lower KRB. In Farahani, H.; Oweis, T.; Siadat, H.; Abbasi, F.; Bruggeman, A.; Anthofer, J.; Turkelboom, F. (Eds.). Proceedings of the International Workshop on Improving Water Productivity and Livelihood Resilience in Karkheh River Basin in Iran, Karaj, Iran, 10-11 September 2007. Aleppo, Syria: International Center for Agricultural Research in the Dry Area (ICARDA) pp.96-102.
(Location: IWMI HQ Call no: e-copy only Record No: H041866)
(0.11 MB) (3.50 MB)
8 Kumar, M. Dinesh. (Ed.) 2008. Managing water in the face of growing scarcity, inequity and declining returns: exploring fresh approaches. Proceedings of the 7th Annual Partners Meet, IWMI TATA Water Policy Research Program, ICRISAT, Patancheru, Hyderabad, India, 2-4 April 2008. Vol.1. Hyderabad, India: International Water Management Institute (IWMI), South Asia Sub Regional Office. pp.1-523.
(Location: IWMI HQ Call no: IWMI 631.7 G635 KUM Record No: H041869)
(0.21MB)
9 Bouazzama, B.; Bahri, Akissa. 2007. Gestion de l'irrigation en zones de montagnes: cas de la vallee d’Ait Bouguemmaz. In French. Revue HTE, 137:52-56.
(Location: IWMI HQ Call no: e-copy only Record No: H041940)
(0.98 MB)
10 Bouazzama, B.; Bahri, Akissa. 2007. Evaluation des performances des installations de l'irrigation localisee au niveau des exploitations agrumicoles du Tadla. In French. Revue HTE, 136:37-40.
(Location: IWMI HQ Call no: e-copy only Record No: H041941)
(1.19 MB)
11 Wani, S. P.; Rockstrom, J.; Oweis, T. (Eds.) 2009. Rainfed agriculture: unlocking the potential. Wallingford, UK: CABI; Patancheru, Andhra Pradesh, India: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT); Colombo, Sri Lanka: International Water Management Institute (IWMI) 310p. (Comprehensive Assessment of Water Management in Agriculture Series 7)
(Location: IWMI HQ Call no: IWMI 631.586 G000 WAN Record No: H041989)
(7.62MB)
12 Wani, S. P.; Rockstrom, J.; Oweis, T. (Eds.) 2009. Rainfed agriculture: unlocking the potential. Wallingford, UK: CABI; Patancheru, Andhra Pradesh, India: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT); Colombo, Sri Lanka: International Water Management Institute (IWMI) 310p. (Comprehensive Assessment of Water Management in Agriculture Series 7)
(Location: IWMI HQ Call no: IWMI 631.586 G000 WAN c2 Record No: H042126)
13 Muwembe, K. Y. 2008. Survey on wastewater irrigation with emphasis on the Nakivubo Drainage Channel in Kampala. In Qadir, Manzoor (Ed.) 2008. Sustainable management of wastewater for agriculture: proceedings of the First Bridging Workshop, Aleppo, Syria, 11-15 November 2007. Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA); Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.44-48.
(Location: IWMI HQ Call no: IWMI 631.7.5 GG30 QAD Record No: H042141)
14 Drechsel, Pay; Raschid-Sally, Liqa; Abaidoo, R. 2009. Reducing risk from wastewater use in urban farming: a case study of Accra, Ghana. In Jimenez, B; Rose, J. (Eds.). Urban water security: managing risks. Paris, France: UNESCO; Leiden, Netherlands: Taylor & Francis. pp.237-253. (UNESCO-IHP Urban Water Series 5)
(Location: IWMI HQ Call no: e-copy only Record No: H042200)
(1.72 MB)
(Location: IWMI-HQ Call no: e-copy only Record No: H042367)
(0.92 MB) (509.46KB)
Stakeholders in agriculture and water related issues have different perceptions about the productivity of water. This is evident by the different definitions of productivity of water, though most of the definitions hinge around the benefits accrued from water use. The viewpoint of smallholder farmers’ regarding the productivity of water is important in order to promote the concept of productivity of water in a country like Tanzania. This is because 95 percent of the farmers are smallholders. This paper presents the farmers’ understanding of the productivity of water in the Mkoji sub-catchment (MSC) in the Ruaha River Basin in Tanzania. It also presents their practices aimed at increasing the productivity of water in the area. It reveals that the concept of productivity of water has been part of the smallholder farmers in Mkoji. The farmers’ concept of productivity of water is the same as that of other stakeholders, only that it is less formal than as expected by experts. Farmers in the sub-catchment judge productivity of water based on the amount of rainfall and its influence of their yields. Productivity of water is high or low if the average seasonal rainfall is ‘good’ or ‘bad’. They put so much value to water that they go to the extent where they are willing to pay more to acquire a piece of land close to a water source. Furthermore, there is evidence that they engage in fights and ‘steal’ water as a result of the high value they place on water. The farmers have adopted tillage methods, agronomic practices and crop diversification approaches to maximize yield from available water. The paper concludes that these strategies adopted by farmers could be a good starting point for formulating measures to improving productivity of water in the area. Therefore, there is a strong need for an in-depth understanding of farmers’ practices to determine the most effective, economical and sustainable options in increasing productivity of water, and to thereby formulate approaches for adaptation, uptake and upscaling. This paper explores farmers’ perceptions of productivity of water, practices and coping mechanisms for achieving greater water productivity. The perceptions are generated based on farmers’ understanding of water productivity, the value they place on land and water, and the struggle and conflicts resulting from the value they put on water. Furthermore, the paper presents farmers’ strategies to estimate productivity of water, and discusses the impact of the farmers’ practices, coping strategies and limitations associated with the practices. It was concluded from this paper that the theories and figures of productivity of water are less important to farmers, than their approaches to enhance their ability to effectively utilize water and to maximize production.
16 Drechsel, Pay; Scott, C. A.; Raschid-Sally, Liqa; Redwood, M.; Bahri, Akissa. (Eds.) 2010. Wastewater irrigation and health: assessing and mitigating risk in low-income countries. Colombo, Sri Lanka: International Water Management Institute (IWMI); London, UK: Earthscan; Ottawa, Canada: International Development Research Centre (IDRC). 404p.
(Location: IWMI HQ Call no: IWMI 631.7.5 G000 DRE Record No: H042600)
(5.45 MB)
In most developing countries wastewater treatment systems have very low coverage or function poorly, resulting in large-scale water pollution and the use of poor-quality water for crop irrigation, especially in the vicinity of urban centres. This can pose significant risks to public health, particularly where crops are eaten raw. Wastewater Irrigation and Health approaches this serious problem from a practical and realistic perspective, addressing the issues of health risk assessment and reduction in developing country settings. The book therefore complements other books on the topic of wastewater which focus on high-end treatment options and the use of treated wastewater. This book moves the debate forward by covering also the common reality of untreated wastewater, greywater and excreta use. It presents the state-of-the-art on quantitative risk assessment and low-cost options for health risk reduction, from treatment to on-farm and off-farm measures, in support of the multiple barrier approach of the 2006 guidelines for safe wastewater irrigation published by the World Health Organization. The 38 authors and co-authors are international key experts in the field of wastewater irrigation representing a mix of agronomists, engineers, social scientists and public health experts from Africa, Asia, Europe, North America and Australia. The chapters highlight experiences across the developing world with reference to various case studies from sub-Saharan Africa, Asia, Mexico and the Middle East. The book also addresses options for resource recovery and wastewater governance, thus clearly establishes a connection between agriculture, health and sanitation, which is often the missing link in the current discussion on ‘making wastewater an asset’.
17 Simmons, R.; Qadir, Manzoor; Drechsel, Pay. 2010. Farm-based measures for reducing human and environmental health risks from chemical constituents in wastewater. In Drechsel, Pay; Scott, C. A.; Raschid-Sally, Liqa; Redwood, M.; Bahri, Akissa (Eds.). Wastewater irrigation and health: assessing and mitigating risk in low-income countries. London, UK: Earthscan; Ottawa, Canada: International Development Research Centre (IDRC); Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.209-238. (Also in French).
(Location: IWMI HQ Call no: IWMI 631.7.5 G000 DRE Record No: H042611)
(0.26 MB)
There is a significant imbalance between the number of publications describing potential and actual environmental and health impacts from chemically contaminated wastewater, and reports outlining concrete options to minimize the related risks where conventional wastewater treatment is not available. This gap applies more to inorganic and organic contaminants than excess salts or nutrients. This chapter outlines some of the options available that could be considered in and around the farm, looking at heavy metals, salts, excess nutrients and organic contaminants. The emphasis is placed on low-cost options applicable in developing countries. While such measures can reduce negative impacts to a certain extent, it remains crucial to ensure that hazardous chemicals are replaced in production processes; industrial wastewater is treated at source and/or separated from other wastewater streams used for irrigation purposes; and fertilizer application rates and related possible subsidies adjusted to avoid over- fertilization.
18 Drechsel, Pay; Scott, C. A.; Raschid-Sally, Liqa; Redwood, M.; Bahri, Akissa. (Eds.) 2010. Wastewater irrigation and health: assessing and mitigating risk in low-income countries. London, UK: Earthscan; Ottawa, Canada: International Development Research Centre (IDRC); Colombo, Sri Lanka: International Water Management Institute (IWMI). 404p.
(Location: IWMI HQ Call no: IWMI 631.7.5 G000 DRE c2 Record No: H042759)
In most developing countries wastewater treatment systems have very low coverage or function poorly, resulting in large-scale water pollution and the use of poor-quality water for crop irrigation, especially in the vicinity of urban centres. This can pose significant risks to public health, particularly where crops are eaten raw. Wastewater Irrigation and Health approaches this serious problem from a practical and realistic perspective, addressing the issues of health risk assessment and reduction in developing country settings. The book therefore complements other books on the topic of wastewater which focus on high-end treatment options and the use of treated wastewater. This book moves the debate forward by covering also the common reality of untreated wastewater, greywater and excreta use. It presents the state-of-the-art on quantitative risk assessment and low-cost options for health risk reduction, from treatment to on-farm and off-farm measures, in support of the multiple barrier approach of the 2006 guidelines for safe wastewater irrigation published by the World Health Organization. The 38 authors and co-authors are international key experts in the field of wastewater irrigation representing a mix of agronomists, engineers, social scientists and public health experts from Africa, Asia, Europe, North America and Australia. The chapters highlight experiences across the developing world with reference to various case studies from sub-Saharan Africa, Asia, Mexico and the Middle East. The book also addresses options for resource recovery and wastewater governance, thus clearly establishes a connection between agriculture, health and sanitation, which is often the missing link in the current discussion on ‘making wastewater an asset’.
(Location: IWMI HQ Call no: e-copy only Record No: H042786)
(0.13 MB)
Where freshwater resources are scarce for reasons of climate or water pollution, urban wastewater is often used to irrigate a range of crops in support of urban markets as well as the livelihoods of farmers. As in many developing countries wastewater treatment is insufficient, the water can contain different types and levels of mostly undesirable constituents. In this review, the focus is on elevated salt concentrations from domestic or industrial origin, which can especially in long-term irrigation systems result in environmental and productivity constraints. As treatment options to reduce water salinity are resource-intensive, off- and on-farm management strategies are needed to offset the implications of saline wastewater. The sources of salts in wastewater can be reduced before it reaches the farm by (1) technologies in industrial sector that reduce salt consumption vis-a`-vis discharge into the sewage system; (2) separation of high-salt releasing industries’ wastewater from domestic and municipal wastewater; (3) reduced evaporation in wastewater treatment ponds; and (4) restrictions on using certain domestic products that are major sources of salts in wastewater. Besides the off-farm interventions, on-farm management strategies may address (1) selection of crops or crop varieties capable of producing profitable yield with saline wastewater; (2) selection of irrigation methods reducing salt levels or crop exposure to salts; (3) application of wastewater in excess of crop water requirement to leach excess salts from the root zone; (4) irrigation of wastewater in conjunction with freshwater through cyclic and/or blending interventions; (5) use of different agronomic interventions; (6) the application – where possible – of calcium-supplying amendments while irrigating with highly sodic wastewater to mitigate sodium effects on soils and crops; and (7) potential use of saline wastewater, if containing adequate proportion of calcium, to ameliorate sodic and saline-sodic soils. Since saline wastewater can also contain other contaminants than salts it is different from saline drainage or groundwater, and its long-term irrigation may result in the movement of, for example, nitrates, metal ions and metalloids to groundwater. Therefore, monitoring of groundwater quality in well-drained wastewater irrigation schemes is important, particularly where groundwater is used elsewhere for drinking purposes. In addition, crop and soil quality analyses are necessary to determine potential negative implications of wastewater irrigation on crop growth and food safety in general and for microbiological and/or other chemical constituents.
(Location: IWMI HQ Call no: CD Col Record No: H042969)
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