Your search found 106 records
1 Schmitt, R.; Amerasinghe, Priyanie H.; Perrin, J.; Dinis, L.; Ahmed, S.; Pavelic, Paul. 2010. Towards the development of a methodology to assess hydrological impacts of wastewater irrigation on groundwater: a case study from Hyderabad, India. [Abstract only]. Paper presented at the Annual Tropical and Subtropical Agricultural and Natural Resource Management (Tropentag) Conference on World Food System - a contribution from Europe, Thematic scientific session on Water management, Zurich, Switzerland, 14 -16 September 2010. 2p. (published online)
Wastewater irrigation ; Groundwater ; Impact assessment ; Hydrological factors ; Case studies / India / Andhra Pradesh / Hyderabad / Musi River
(Location: IWMI HQ Call no: e-copy only Record No: H043223)
http://www.tropentag.de/2010/abstracts/links/Schmitt_2rQBM1Rw.pdf
https://vlibrary.iwmi.org/pdf/h043223.pdf
https://vlibrary.iwmi.org/pdf/h043223.pdf
(0.11 MB)
In the lands adjacent to the Musi-River, downstream of the city of Hyderabad, India, wastewater reuse for irrigation of various crops is common. Studies have shown that poor water quality has been a driver for crop selection in this area and this study describes the methodological approach used to understand the hydrological impacts and processes on groundwater associated with wastewater irrigation of a variety of crop types. An area (2.8km2) comprising wastewater- and groundwater-irrigated agriculture was selected based on landuse maps and observations. The watershed was delineated using DEM and GIS data. A crop model (BUDGET; Raes, 2005) was combined with field measure-ments, baseline data on irrigation practices, and land use patterns, to assess the overall water balance. The suitability of the method was validated with questionnaire survey results and available secondary data. 4 Piezometers were installed to assess and monitor groundwater levels and quality. Major crops irrigated with wastewater were found to be Paragrass (20 ha), Paddy (6 ha) and leafy vegetables (1.8 ha). Groundwater was used for Paddy (8 ha) and leafy vegetables (1.6 ha). Discharge from 17 wells or pumps was measured. Base line data for 23 distinct fields were collected. The annual irrigation flux was calculated to be 1.6×106 m3 and comprised of 77% wastewater, 23% groundwater. Return-flows from agriculture were 0.44×106m3 and madeup of 60% wastewater and 40% groundwater. There is neither a difference in the application rate of irrigation for paddy and Paragrass (n=12, p = 0.12) (Mann-Whitney-U-Test) nor in irrigation practices between wastewater and groundwater users (n=10, p = 0.10). The accuracy of survey results and crop modelling is dependant on crop type (p = 0.043, n=9) and season (p = 0.04, n=9). Piezometric measurements support differences in returnflows as modeled. Groundwater development is low, however, the irrigation return flows constitute an important source of ground water recharge. Findings indicate further potential for groundwater-based irrigation in wastewater irrigated areas maximizing the area under cultivation and benefits from the available water resources. These preliminary findings are being verified by more indepth studies that are presently underway and will finally allow the assessment different land and water use scenarios with regards to groundwater quality and quantity.
2 Servat, E.; Demuth, S.; Dezetter, A.; Daniell, T.; Ferrari, E.; Ijjaali, M.; Jabrane, R.; Van Lanen, H.; Huang, Y. (Eds.) 2010. Global change: facing risks and threats to water resources. Proceedings of the Sixth World FRIEND Conference, Fez, Morocco, 25-29 October 2010. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 698p. (IAHS Publication 340)
Hydrological factors ; Hazards ; Adaptation ; Water resource management ; Flooding ; Drought ; Environmental monitoring ; Simulation models ; GIS ; Mapping ; Decision support systems ; Watersheds ; Risk assessment ; Groundwater ; River Basins ; Climate change ; Case studies ; Seasonal variation ; Runoff ; Floodplains ; Historical aspects ; Reservoirs ; Hydrological cycle ; Surface water ; Water scarcity ; Water quality ; Water balance ; Evapotranspiration ; Urban development ; Land use ; Land cover ; Erosion ; Aquifers / France / Russia / Czech Republic / Tunisia / Algeria / Italy / Brazil / Europe / Africa / Vietnam / Norway / Slovakia / Germany / Colombia / USA / Caribbean / Benin / Cameroon / UK / Chile / Nitra River / Oueme Region / Chellif River Basin / Taquari River Basin / Terek River Basin / Tuscany / Crati River Basin / Volta River Basin / Thach Han River Basin / River Elbe Basin / Harz Mountains / Algerian Coastal Basin / Volta River Basin / Berrechid Plain / Upper Niger River / Moulouya Watershed / Atlantic Ocean / Danube River / Sudano-Sahelian Catchment / Yaere flood plain
(Location: IWMI HQ Call no: 333.91 G000 SER Record No: H043485)
(0.75 MB)
3 Anderson, M. P.; Slichter, C. S. (Comps.) 2008. Groundwater. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 625p. (IAHS Benchmark Papers in Hydrology 3)
Groundwater ; Flow discharge ; Aquifers ; Seepage ; Catchment areas ; Subsidence ; Fluid flow ; Models ; Wells ; Coastal plains ; Infiltration water ; Water pollution ; Water table ; Highlands ; Hydrological factors
(Location: IWMI HQ Call no: 551.4922 G000 AND Record No: H043496)
(0.42 MB)
4 Gichuki, F. N.; Mungai, D. N.; Gachene, C. K. K.; Thomas, D. B. (Eds.) 2000. Land and water management in Kenya: towards sustainable land use. Proceedings of the Fourth National Workshop, Wida Highway Motel, Kikuyu, Kenya, 15-19 February 1993. Nairobi, Kenya: Ministry of Agriculture and Rural Development, Soil and Water Conservation Branch. 369p.
Water management ; Water harvesting ; Land management ; Land use ; Soil degradation ; Soil conservation ; Erosion ; Rivers ; Lakes ; Catchment areas ; Sedimentation ; Reservoirs ; Case studies ; Rainfall-runoff relationships ; Fodder ; Cropping systems ; Crop production ; Agroforestry ; Public participation ; Food security ; Vegetation ; Water supply ; Watershed management ; Climate change ; Water resources development ; Irrigation systems ; Hydrological factors ; Policy ; Environmental effects / Africa / Kenya / Uganda / Botswana / Laikipia District / Mukogodo Catchment / Upper Migori River Catchment / Kajiado District / Nyandarua District / Masinga Reservoir / Masinga Dam / Nguu Tatu Catchment / Nyeri District / NaroMoru River Catchment / Lake Nakuru Catchment Basin / Lake Elmenteita / Kibwezi / Marsabit District / Braingo District
(Location: IWMI HQ Call no: 333.91 G000 GIC Record No: H043837)
(0.12 MB)
5 Dessie, G.; Erkossa, Teklu. 2011. Eucalyptus in East Africa: socio-economic and environmental issues. Rome, Italy: FAO. Forestry Department. 30p. (FAO Planted Forests and Trees Working Paper FP46/E)
Eucalyptus ; History ; Environmental effects ; Socioeconomic aspects ; Hydrological factors ; Soil properties ; Biodiversity / East Africa
(Location: IWMI HQ Call no: e-copy only Record No: H043946)
(0.42 MB) (610.37KB)
6 Masih, I. 2011. Understanding hydrological variability for improved water management in the semi-arid Karkheh Basin, Iran. Thesis. Leiden, Netherlands: CRC Press. 182p.
Water management ; Hydrological factors ; River basins ; Water allocation ; Water availability ; Water accounting ; Stream flow ; Climate ; Rain ; Runoff ; Simulation models ; Precipitation ; Case studies ; Rainfed farming ; Irrigated farming / Iran / Karkheh River Basin
(Location: IWMI HQ Call no: 333.91 G690 MAS Record No: H043956)
http://repository.tudelft.nl/assets/uuid:f6a01310-2d46-43b8-8bbd-a728087de307/PHD_THESIS_MASIH-202pag-vs310511-lowres.pdf
https://vlibrary.iwmi.org/pdf/H043956.pdf
https://vlibrary.iwmi.org/pdf/H043956.pdf
(2.30 MB) (2.30MB)
7 Bharati, Luna; Jayakody, Priyantha. 2011. Hydrological impacts of inflow and land-use changes in the Gorai River catchment, Bangladesh. Water International, 36(3):357-369. [doi: https://doi.org/10.1080/02508060.2011.586200]
Land use ; Land cover change ; Hydrological factors ; Rivers ; Catchment areas ; Dams ; Models ; Water balance / Bangladesh / Gorai River catchment
(Location: IWMI HQ Call no: PER Record No: H043966)
(2.04 MB)
This study looks at the changes in water balance in the Gorai River Catchment in the Bangladesh delta before and after operationalization of Farakka Barrage. Results show that in ow into the catchment has decreased, but major changes in land use within the catchment have also impacted runoff. Model scenarios demonstrate that although increasing in ow from upstream is the most effective method to increase dry season ows into the delta, reduction in cultivation of water-intensive crops would provide an alternative solution.
8 Masih, I. 2011. Understanding hydrological variability for improved water management in the semi-arid Karkheh Basin, Iran. Thesis. Leiden, Netherlands: CRC Press. 182p.
Water management ; Hydrological factors ; River basins ; Water allocation ; Water availability ; Water accounting ; Stream flow ; Climate ; Rain ; Runoff ; Simulation models ; Precipitation ; Case studies ; Rainfed farming ; Irrigated farming / Iran / Karkheh River Basin
(Location: IWMI HQ Call no: D 333.91 G690 MAS c2 Record No: H044101)
http://repository.tudelft.nl/assets/uuid:f6a01310-2d46-43b8-8bbd-a728087de307/PHD_THESIS_MASIH-202pag-vs310511-lowres.pdf
https://vlibrary.iwmi.org/pdf/H043956.pdf
https://vlibrary.iwmi.org/pdf/H043956.pdf
(2.30MB)
9 Gurung, Pabitra; Bharati, Luna. 2011. Downstream hydrological impacts of the Melamchi inter-basin water transfer plan. In Nepal. Department of Irrigation. Proceedings of National Irrigation Seminar Micro to Mega: Irrigation for Prosperous Nepal, Kathmandu, Nepal, 13-14 July 2011. Lalitpur, Nepal: Department of Irrigation. pp.161-168.
Downstream ; Hydrological factors ; River basins ; Water availability ; Water transfer ; Water supply ; Drinking water ; Water balance ; Models ; Dry season ; Wet season / Nepal / Melamchi / Kathmandu Valley / Indrawati River
(Location: IWMI HQ Call no: e-copy only Record No: H044590)
(1.33 MB)
10 Yilmaz, K. K.; Yucel, I.; Gupta, H.V.; Wagener, T.; Yang, D.; Savenjie, H.; Neale, C.; Kunstmann, H.; Pomeroy, J. (Eds.) 2009. New approaches to hydrological prediction in data-sparse regions: proceedings of symposium HS.2 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH), Hyderabad, India, 6-12 September 2009. Wallingford, UK: International Association of Hydrological Sciences (IAHS). 342p. (IAHS Publication 333)
Hydrological factors ; Simulation models ; River basins ; Calibration ; Remote sensing ; Hydrometeorology ; Climate change ; Forecasting ; Rainfall-runoff relationships ; Flooding ; Drought ; Water balance ; Precipitation ; Case studies ; Evapotranspiration ; Satellite surveys ; Satellite imagery ; Catchment areas ; Groundwater ; Data ; Monitoring ; Macropores ; Vegetation ; Downstream ; Watersheds ; Analytical methods / Iran / West Africa / South Africa / China / India / Peru / USA / Brazil / Botswana / Karkheh River Basin / River Bani / Yellow River / Hanjiang Basin / Sahel / Kaidu River Basin / Laohahe River Basin / Peruvian Amazon-Andes Basin / Arizona / San Francisco River Basin / Brahmaputra River Basin / Limpopo River Basin
(Location: IWMI HQ Call no: 551.48 G000 YIL Record No: H044653)
(0.44 MB)
11 Japan International Cooperation Agency (JICA); Kokusai Kogyo Co. Ltd.; Laos. Ministry of Health. 1995. The study on groundwater development for Champasak and Saravan provinces in Lao People's Democratic Republic Final report - supporting report. Tokyo, Japan: Japan International Cooperation Agency; Tokyo, Japan: Kokusai Kogyo Co. Ltd. 245p.
Groundwater development ; Remote sensing ; Image analysis ; Land use ; Water resources ; Wells ; Drilling ; Pumping ; Agriculture ; Water use ; Water quality ; Irrigation water ; Irrigation programs ; Hydrological factors ; Surveys ; Databases ; Data analysis ; Water rights / Laos / Champasak Province / Salavan Province
(Location: IWMI HQ Call no: e-copy only Record No: H044685)
http://lvzopac.jica.go.jp/external/library?func=function.opacsch.mmindex&view=view.opacsch.toshoshozodsp&lang=eng&shoshisbt=1&shoshino=0000086966&volno=0
https://vlibrary.iwmi.org/pdf/H044685.pdf
https://vlibrary.iwmi.org/pdf/H044685.pdf
(9.99 MB)
12 Rebelo, Lisa-Maria; Senay, G. B.; McCartney, Matthew. 2012. Flood pulsing in the Sudd Wetland: analysis of seasonal variations in inundation and evaporation in South Sudan. Earth Interactions, 16(1):1-19. [doi: https://doi.org/10.1175/2011EI382.1]
Flooding ; Wetlands ; Ecosystems ; Biodiversity ; Seasonal variation ; Evaporation ; Evapotranspiration ; Remote sensing ; Vegetation ; Hydrological factors ; Catchment areas ; Desalinization ; Models / Sudan / Bahr el Jebel / Sudd Region / Lake Victoria / White Nile River / Nile River
(Location: IWMI HQ Call no: e-copy only Record No: H044750)
(1.98 MB)
Located on the Bahr el Jebel in South Sudan, the Sudd is one of the largest floodplain wetlands in the world. Seasonal nundation drives thehydrologic, geomorphological, and ecological processes, and the annual flood pulse is essential to the functioning of the Sudd. Despite the importance of the flood pulse, various hydrological interventions are planned upstream of the Sudd to increase economic benefits and food security. These will not be without consequences, in particular for wetlands where the biological productivity, biodiversity, and human livelihoods are dependent on the flood pulse and both the costs and benefits need to be carefully evaluated. Many African countries still lack regional baseline information on the temporal extent, distribution, and characteristics of wetlands, making it hard to assess the consequences of development interventions. Because of political instability in Sudan and the inaccessible nature of the Sudd, recent measurements of flooding and seasonal dynamics are inadequate. Analyses of multitemporal and multisensor remote sensing datasets are presented in this paper, in order to investigate and characterize flood pulsing within the Sudd wetland over a 12-month period. Wetland area has been mapped along with dominant components of open water and flooded vegetation at five time periods over a single year. The total area of flooding (both rain and river fed) over the 12 months was 41 334 km2, with 9176 km2 of this constituting the permanent wetland. Mean annual total evaporation is shown to be higher and with narrower distribution of values from areas of open water (1718 mm) than from flooded vegetation (1641 mm). Although the exact figures require validation against ground-based measurements, the results highlight the relative differences in inundation patterns and evaporation across the Sudd.
13 Blackwell, M. S. A.; Pilgrim, E. S. 2011. Ecosystem services delivered by small-scale wetlands. Hydrological Sciences Journal, 56(8):1467-1484.
Ecosystems ; Wetlands ; Small scale systems ; Water quality ; Greenhouse gases ; Agricultural production ; Hydrological factors ; Biodiversity conservation
(Location: IWMI HQ Record No: H045060)
(1.29 MB)
The benefits of small-scale wetlands have been largely overlooked, primarily because (a) such areas are considered problematic to manage, and (b) small wetlands fall outside the remit of most wetland inventories. The subsequent paucity of information prevents a comprehensive investigation of their properties and this must be addressed. Here we examine the evidence for the potential significance of small wetlands with regard to delivery of ecosystem services (ESs) and conclude that small wetlands often have a positive effect on their delivery, especially water quality, water regulation and biodiversity conservation. However these benefits can be offset by the emission of greenhouse gases. We suggest that, in future, wetlands should not be assessed on size alone, but rather in the context of both their location in the landscape and interaction with hydrological pathways. Furthermore, tools need to be developed to assess the type and efficiency of ESs delivered from all wetlands.
14 Demissie, Solomon, S.; Awulachew, Seleshi Bekele; Molden, David; Yilma, Aster Denekew. 2012. Spatial characterization of the Nile Basin for improved water management. In Awulachew, Seleshi Bekele; Smakhtin, Vladimir; Molden, David; Peden D. (Eds.). The Nile River Basin: water, agriculture, governance and livelihoods. Abingdon, UK: Routledge - Earthscan. pp.47-60.
River basins ; Nomenclature ; Water management ; Climate change ; Topography ; Hydrological factors ; Vegetation ; Indicators ; Ecology ; Environmental effects ; Multivariate analysis / Africa / Nile River Basin
(Location: IWMI HQ Call no: IWMI Record No: H045311)
(1007.22KB)
15 Easton, Z. M.; Awulachew, Seleshi Bekele; Steenhuis, T. S.; Habte, S. A.; Zemadim, Birhanu; Seleshi, Y.; Bashar, K. E. 2012. Hydrological process in the Blue Nile. In Awulachew, Seleshi Bekele; Smakhtin, Vladimir; Molden, David; Peden D. (Eds.). The Nile River Basin: water, agriculture, governance and livelihoods. Abingdon, UK: Routledge - Earthscan. pp.84-111.
River basins ; Hydrological factors ; Rainfall-runoff relationships ; Watersheds ; Precipitation ; Infiltration ; Groundwater ; Water table ; Models ; Calibration ; Water balance ; Assessment ; Land use ; Land cover / Africa / Blue Nile River Basin
(Location: IWMI HQ Call no: IWMI Record No: H045313)
(2.14MB)
16 Kizito, Fred; Williams, Timothy Olalekan; McCartney, Matthew; Erkossa, Teklu. 2012. Green and blue water dimensions of foreign direct investment in biofuel and food production in West Africa: the case of Ghana and Mali. In Allan, T.; Keulertz, M.; Sojamo, S.; Warner, J. (Eds.). Handbook of land and water grabs in Africa: foreign direct investment and food and water security. London, UK: Routledge. pp.337-358.
Biofuels ; Food production ; Crops ; Foreign investment ; Water availability ; Water requirements ; Water rights ; Ecosystems ; Land acquisitions ; Land use ; Hydrological factors ; Case studies ; Living standards ; Simulation models ; Catchment areas ; Moisture ; Rain ; Supplemental irrigation / West Africa / Ghana / Mali
(Location: IWMI HQ Call no: 333.91 G000 ALL Record No: H045553)
(1.31 MB)
17 Cai, Xueliang; McCartney, Matthew; Smakhtin, Vladimir. 2012. Flow duration curve for evaluating ecosystem flow regulating functions in the Zambezi River Basin [Africa]. Paper presented at the 16th SANCIAHS National Hydrology Symposium, Pretoria, South Africa, 1-3 October 2012. 10p.
Water management ; Ecosystems ; Flow discharge ; Flow regulation ; River basins ; Wetlands ; Forests ; Hydrological factors ; Upstream ; Downstream ; Flooding ; Land cover ; Time series analysis / Africa / Zambezi River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H045717)
http://www.ru.ac.za/static/institutes/iwr/SANCIAHS/2012/documents/014_Cai.pdf
https://vlibrary.iwmi.org/pdf/H045717.pdf
https://vlibrary.iwmi.org/pdf/H045717.pdf
(1.10 MB) (1.11MB)
Wetlands and forests have strong effects on hydrological processes by changing the rate of evaporation, transpiration, and flow routing in a basin, which affects basin water management such as dam operations. This study aims to assess the flow regulating functions of wetlands and forests using a flow duration curve (FDC) approach. We firstly identify wetlands and forests which are gauged both upstream and downstream. Reference conditions were then established using nearby sub-watersheds that contain few/no wetlands/forests. By transferring reference flows to the target sites and comparing the FDCs for with and without wetland/forest conditions we then assess the hydrological impacts on flood attenuation and base flow maintenance. Results of a floodplain wetland suggest that it decrease flood flows and increase low flows. The extent of this function could be quantified which gives useful indications for water resources planning and management.
18 Shukla, M. K. (Ed.) 2011. Soil hydrology, land use and agriculture: measurement and modelling. Wallingford, UK: CABI. 455p.
Soil management ; Soil properties ; Hydrological factors ; Indicators ; Land use ; Land cover ; Land management ; Watersheds ; Models ; Data ; River basins ; Flow discharge ; Water availability ; Water quality ; Water balance ; Catchment areas ; Drainage ; Climate change ; Precipitation ; Evapotranspiration ; Ecology ; Surface water ; Groundwater recharge ; Subsurface drainage ; Case studies ; Sensitivity analysis / Europe / USA / Australia / Germany / Ireland / India / Nepal / Austria / Southern Portugal / Arkansas / Texas / Kosi Himalayan Basin / Himalayan Basin / Illinois River / Bosque River
(Location: IWMI HQ Call no: e-copy SF Record No: H045772)
19 Lacombe, Guillaume; Pierret, A. 2013. Hydrological impact of war-induced deforestation in the Mekong Basin. Ecohydrology, 6(5):901-903. [doi: https://doi.org/10.1002/eco.1395]
Deforestation ; Hydrological factors ; River basins ; Data ; Water levels ; Flow discharge ; Rain ; Land cover / South East Asia / Mekong River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H045860)
(1.13 MB)
The Vietnam War played a decisive role in the pre-1990s deforestation of the lower Mekong Basin, which in turn likely influenced regional broad-scale hydrology. This note presents and discusses new analyses that strengthen this thesis. Although concurrent overestimation of discharge and underestimation of rainfall, a couple of years after bombing climaxed in the early 1970s, could theoretically explain the sharp rise in water yield previously attributed to bomb-induced deforestation, new observations suggest that bombing has durably modified the landscape: by 2002, degraded forests still largely overlapped with areas heavily bombed 30 years earlier. This corroborates observed long-term hydrological changes and suggests that warfare-induced deforestation has more profound and durable hydrological effects than previously thought.
20 Krueger, K.; Segovia, F.; Toubia, M. 2008. Assessment of the India river linking plan: a closer look at the Ken-Betwa Pilot Link. In Mirza, M. M. Q.; Ahmed, A. U.; Ahmad, Q. K. (Eds.). Interlinking of rivers in India: issues and concerns. Leiden, Netherlands: CRC Press. pp.169-186.
Rivers ; Hydrological factors ; Dams ; Reservoirs ; Canals ; Flooding ; Erosion ; Water quality ; Social aspects / India
(Location: IWMI HQ Call no: 363.6 G000 MIR Record No: H045876)
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