Your search found 8 records
1 Sood, Aditya; Smakhtin, Vladimir; Eriyagama, Nishadi; Villholth, Karen G.; Liyanage, Nirosha; Wada, Y.; Ebrahim, Girma; Dickens, Chris. 2017. Global environmental flow information for the sustainable development goals. Colombo, Sri Lanka: International Water Management Institute (IWMI). 37p. (IWMI Research Report 168) [doi: https://doi.org/10.5337/2017.201]
Environmental flows ; Environmental management ; Sustainable development ; Development policy ; Rivers ; River basins ; Stream flow ; Surface water ; Groundwater extraction ; Groundwater recharge ; Water resources ; Water management ; Water availability ; Aquifers ; Ecosystems ; Stakeholders ; Indicators ; Runoff ; Hydrology ; Models
(Location: IWMI HQ Call no: IWMI Record No: H048035)
(2 MB)
Environmental flows (EF) are an important component of Goal 6 (the ‘water goal’) of the Sustainable Development Goals (SDGs). Yet, many countries still do not have well-defined criteria on how to define EF. In this study, we bring together the International Water Management Institute’s (IWMI’s) expertise and previous research in this area to develop a new methodology to quantify EF at a global scale. EF are developed for grids (0.1 degree spatial resolution) for different levels of health (defined as environmental management classes [EMCs]) of river sections. Additionally, EF have been separated into surface water and groundwater components, which also helps in developing sustainable groundwater abstraction (SGWA) limits. An online tool has been developed to calculate EF and SGWA in any area of interest.
2 Dickens, Chris; O'Brien, G.; Stassen, R.; van der Waal, B.; MacKenzie, J.; Eriyagama, Nishadi; Villholth, Karen; Ebrahim, Girma; Magombeyi, Manuel; Wepener, V.; Gerber, S.; Kaiser, A.; Diedericks, G. 2021. E-flows for the Limpopo River Basin: specialist literature and data review. Project report prepared by the International Water Management Institute (IWMI) for the United States Agency for International Development (USAID). Colombo, Sri Lanka: International Water Management Institute (IWMI); Washington, DC, USA: USAID. 252p. (E-flows for the Limpopo River Basin: Report 4) [doi: https://doi.org/10.5337/2022.219]
Environmental flows ; River basins ; Hydrology ; Groundwater ; Water quality ; Geomorphology ; Hydraulics ; Vegetation ; Fish ; Aquatic invertebrates / Botswana / Mozambique / South Africa / Zimbabwe / Limpopo River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051953)
(9.48 MB)
3 O'Brien, G.; Dickens, Chris; Stassen, R.; Erasmus, H.; Herselman, S.; van der Waal, B.; Wepener, V.; Pearson, H.; LeRoux, H.; Villholth, Karen; Ebrahim, Girma; Magombeyi, Manuel; Riddell, E.; Petersen, R. 2022. E-flows for the Limpopo River Basin: present ecological state - drivers of ecosystem change. Project report prepared by the International Water Management Institute (IWMI) for the United States Agency for International Development (USAID). Colombo, Sri Lanka: International Water Management Institute (IWMI); Washington, DC, USA: USAID. 296p. (E-flows for the Limpopo River Basin: Report 5) [doi: https://doi.org/10.5337/2022.220]
Environmental flows ; River basins ; Ecosystems ; Ecological factors ; Hydrology ; Groundwater ; Surface water ; Hydraulics ; Geomorphology ; Water quality / South Africa / Mozambique / Botswana / Zimbabwe / Limpopo River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051954)
(10.8 MB)
4 O'Brien, G.; Dickens, Chris; Wade, M.; Stassen, R.; Diedericks, G.; MacKenzie, J.; Kaiser, A.; van der Waal, B.; Wepener, V.; Villholth, Karen; Ebrahim, Girma; Dlamini, V.; Magombeyi, Manuel. 2022. E-flows for the Limpopo River Basin: environmental flow determination. Project report prepared by the International Water Management Institute (IWMI) for the United States Agency for International Development (USAID). Colombo, Sri Lanka: International Water Management Institute (IWMI); Washington, DC, USA: USAID. 209p. (E-flows for the Limpopo River Basin: Report 7) [doi: https://doi.org/10.5337/2022.222]
Environmental flows ; River basins ; Ecosystem services ; Hydrology ; Fish ; Invertebrates ; Riparian vegetation ; Groundwater ; Water quality ; Ecological factors / Botswana / Zimbabwe / Mozambique / South Africa / Limpopo River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051956)
(5.75 MB)
5 O'Brien, G.; Dickens, Chris; Wade, M.; Stassen, R.; Wepener, V.; Diedericks, G.; MacKenzie, J.; Kaiser, A.; van der Waal, B.; Villholth, Karen; Ebrahim, Girma; Dlamini, V.; Magombeyi, Manuel. 2022. E-flows for the Limpopo River Basin: risk of altered flows to the ecosystem services. Project report prepared by the International Water Management Institute (IWMI) for the United States Agency for International Development (USAID). Colombo, Sri Lanka: International Water Management Institute (IWMI); Washington, DC, USA: USAID. 144p. (E-flows for the Limpopo River Basin: Report 8) [doi: https://doi.org/10.5337/2022.223]
Environmental flows ; River basins ; Ecosystem services ; Risk assessment ; Water resources ; Water quality ; Ecological factors ; Fish ; Cultural services ; Models / Botswana / Zimbabwe / Mozambique / South Africa / Limpopo River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051957)
(6.84 MB)
6 Malambo, M.; Tembo, M. C.; Chapoto, A.; Matchaya, Greenwell; Kasoma-Pele, Winnie; Aheeyar, Mohamed; Ebrahim, Girma; Ajayi, O. C.; Afun-Ogidan, K.; Fakudze, Bhekiwe. 2023. Digital adaptation in agriculture profile for Zambia. Colombo, Sri Lanka: International Water Management Institute (IWMI); Rotterdam, Netherlands: Global Center on Adaptation; Abidjan, Cote d’Ivoire: African Development Bank. 74p.
Climate change adaptation ; Agricultural sector ; Digital technology ; Disaster risk management ; Information and Communication Technologies ; Climate prediction ; Weather forecasting ; Weather index insurance ; Water management ; Vulnerability ; Resilience ; Innovation ; Investment ; Electricity supplies ; Infrastructure ; Gender ; Women ; Stakeholders ; State intervention ; Private sector ; River basins / Zambia / Zambezi River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H052084)
https://www.afdb.org/en/documents/digital-adaptation-agriculture-profile-zambia
https://vlibrary.iwmi.org/pdf/H052084.pdf
https://vlibrary.iwmi.org/pdf/H052084.pdf
(5.74 MB) (5.74 MB)
7 Mayoyo, A.; Chapoto, A.; Matchaya, Greenwell; Aheeyar, Mohamed; Chiwunze, G.; Ebrahim, Girma; Ajayi, O. C.; Afun-Ogidan, K.; Fakudze, Bhekiwe; Kasoma-Pele, Winnie. 2023. Digital climate adaptation in agriculture profile for Zimbabwe. Colombo, Sri Lanka: International Water Management Institute (IWMI); Rotterdam, Netherlands: Global Center on Adaptation; Abidjan, Cote d’Ivoire: African Development Bank. 74p.
Climate change adaptation ; Agricultural sector ; Digital technology ; Technology adoption ; Smallholders ; Farmers ; Risk ; Vulnerability ; Resilience ; Drought ; Flooding ; Information and Communication Technologies ; Gender ; Investment ; Stakeholders ; Private sector ; Public sector ; State intervention ; River basins / Zimbabwe / Zambezi River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H052085)
https://www.afdb.org/en/documents/digital-climate-adaptation-agriculture-profile-zimbabwe
https://vlibrary.iwmi.org/pdf/H052085.pdf
https://vlibrary.iwmi.org/pdf/H052085.pdf
(2.67 MB) (2.67 MB)
8 Lazurko, A.; Lautze, Jonathan; Hussey, S.; Muzarabani, C.; Ngwenya, N.; Ebrahim, Girma. 2024. Assessing sand dams for contributions to local water security and drought resilience in the semi-arid eastern Shashe Catchment, Zimbabwe. Regional Environmental Change, 24:36. [doi: https://doi.org/10.1007/s10113-024-02201-y]
Dams ; Water security ; Drought ; Climate resilience ; Semi-arid zones ; Water storage ; Climate change ; Water availability ; Communities / Zimbabwe / Shashe Catchment
(Location: IWMI HQ Call no: e-copy only Record No: H052852)
https://link.springer.com/content/pdf/10.1007/s10113-024-02201-y.pdf
https://vlibrary.iwmi.org/pdf/H052852.pdf
https://vlibrary.iwmi.org/pdf/H052852.pdf
(3.63 MB) (3.63 MB)
Climate change is increasing the frequency and severity of droughts in semi-arid regions. Small-scale water storage can help build drought resilience, particularly in rural areas with no access to formal water infrastructure. Sand dams, which store water by capturing water in sand-filled ephemeral rivers during the wet season, are one promising storage option. While emerging studies indicate tentative evidence of their benefits, the focus on resilience is under-addressed. This study evaluates the impact of sand dams on resilience to climate variability and changes through a participatory case study approach in the Shashe catchment, a semi-arid catchment shared by Botswana and Zimbabwe. Participatory research was conducted via site inspections, focus group discussions, and interviews at 20 sand dams utilized by 19 villages across the Zimbabwean portion of the Shashe catchment. The results show that sand dams significantly improved local water availability, most notably with a significant increase in the number of months per year that water could be collected from the dam site (mean = 6.5 months before, to mean = 10.9 months after construction, p < 0.05). This increase is also reflected in drought years (mean = 5.8 months before, to mean = 9.6 months after construction, p < 0.05). Sand dams also contribute to the adaptive capacity of communities via key benefits such as diversification of livelihood activities, improved health and hygiene, and reduced erosion in the surrounding area due to increased vegetation. In sum, the study demonstrates clear benefits to communities facing drought, supporting calls to elevate sand dams on the development agenda.
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