Your search found 56 records
1 Strycharczyk, J. B.; Stedinger, J. R. 1987. Evaluation of a "Reliability Programming" reservoir model. Water Resources Research, 23(2):225-229.
(Location: IWMI-HQ Call no: PER Record No: H03193)
2 Turbak, A. S.; Morel-Seytoux, H. J. 1988. Analytical solutions for surface irrigation. I: Constant infiltration rate; II: Variable infiltration rate. Journal of Irrigation and Drainage Engineering, 114(1):31-47; 48-60.
(Location: IWMI-HQ Call no: PER Record No: H03724)
3 Early, A. C. 1981. Irrigation system management diagnosis and improvement methodologies developed in Central Luzon of the Philippines. Discussion paper prepared for the Workshop on Methodologies for Improved Irrigation System Management Research, Coimbatore, India, 21-26 September 1984. 25p.
Irrigation programs ; Irrigation management ; Research ; Methodology ; Analytical methods ; Water management / Philippines
(Location: IWMI-HQ Call no: P 885 Record No: H03934)
4 Major, D. C.; Major, J. S. 1976. Toward an inferential method for evaluating public works projects in pre-modern China. Paper presented at the Annual meeting of the Social Science History Association, Philadelphia, Pennsylvania, 29-31 October 1976. 42p.
Decision making ; Public policy ; Analytical methods ; Project appraisal ; Mathematical models / China
(Location: IWMI-HQ Call no: P 1042 Record No: H04668)
5 Terasart, T. Studying irrigation through the survey method: Northeast Thailand. Unpublished manuscript. 10p.
(Location: IWMI-HQ Call no: P 1075 Record No: H02340)
6 Yuanxi, Z.; Fei, G. 1988. The prediction and it's analysis for management and operation of groundwater. In Proceedings of the International Conference on Irrigation System Evaluation and Water Management, Wuhan, China, 12-16 September 1988: Vols.1 & 2. Wuhan, China: Wuhan University of Hydraulic and Electrical Engineering. pp.767-774.
(Location: IWMI-HQ Call no: 631.7.8 G000 PRO Record No: H06714)
7 Karamouzis, D. N.; Teloglou,, I. S. 1993. Analytical solutions of unsteady drainage problems for soils subjected to variable recharge from a semi-confined aquifer. Water Resources Management, 7(2):153-168.
(Location: IWMI-HQ Call no: PER Record No: H013459)
8 Raudkivi, A. J.; Callander, R. A. 1976. Analysis of groundwater flow. London, UK: Edward Arnold. xii, 214p.
(Location: IWMI-HQ Call no: 631.7.1 G000 RAU Record No: H014031)
9 Sarker, R.; Meilke, K.; Hoy, M. 1993. The political economy of systematic government intervention in agriculture. Canadian Journal of Agricultural Economics, 41:289-309.
Agricultural policy ; Economic aspects ; Political aspects ; Developing countries ; Models ; Analytical methods
(Location: IWMI-HQ Call no: P 3482 Record No: H014622)
10 Cheah, U. B.; Sharma, M. L.; Aminuddin, B. Y.; Mohammud, C. H.; Zain, M. M. 1996. Pesticide residues in water resources of the agricultural plains of Kelantan. In Aminuddin, B. Y.; Sharma, M. L.; Willett, I. R. (Eds.), Agricultural impacts on groundwater quality: Proceedings of an international workshop held in Kota Bharu, Kelantan, Malaysia, 24-27 October 1994. Canberra, Australia: ACIAR. pp.22-28.
Pesticide residues ; Water resources ; Water pollution ; Water quality ; Analytical methods ; Tobacco ; Rice / Malaysia / Kelantan Plain
(Location: IWMI-HQ Call no: 631.7.6.3 G000 AMI Record No: H019054)
11 Silva, E. I. L.; Namaratne, S. Y.; Weerasooriya, S. V. R.; Manuweera, L. 1996. Water analysis: User-friendly field/laboratory manual. Kandy, Sri Lanka: IFS. Department of Environmental Sciences. v, 193p.
Water quality ; Monitoring ; Analytical methods ; Statistical analysis ; Measuring instruments ; Quality control ; Alkalinity / Sri Lanka
(Location: IWMI-HQ Call no: 628.1 G744 SIL Record No: H019964)
12 Kiwan, M. E. 1996. Analytical solution for optimum design of furrow irrigation systems. Hydrological Processes, 10:763-770.
(Location: IWMI-HQ Call no: P 4395 Record No: H019966)
13 Manglik, A.; Rai, S. N.; Singh, R. N. 1997. Response of an unconfined aquifer induced by time varying recharge from a rectangular basin. Water Resources Management, 11(3):185-196.
(Location: IWMI-HQ Call no: PER Record No: H021020)
14 Sandström, K.; Bhatia, R. 1997? Integrated water resources management: A preliminary review of allocation approaches and institutional mechanisms. Unpublished working paper. 16p.
Water resource management ; Water allocation ; Water market ; Models ; Case studies ; Analytical methods ; Performance evaluation
(Location: IWMI-HQ Call no: P 4603 Record No: H021428)
15 Kerkides, P.; Poulovassilis, A.; Argyrokastritis, I.; Elmaloglou, S. 1997. Comparative evaluation of analytic solutions in predicting soil moisture profiles in vertical one-dimensional infiltration under ponded and constant flux boundary conditions. Water Resources Management, 11(5):323-338.
(Location: IWMI-HQ Call no: PER Record No: H021537)
16 Finlayson, Max; Farrell, T. P.; Griffiths, D. J. 1984. Studies of the hydrobiology of a tropical lake in North-Western Queensland: III. Growth, chemical composition and potential for harvesting of the aquatic vegetation. Australian Journal of Marine and Freshwater Research, 35: 525-536.
Lakes ; Hydrobiology ; Aquatic plants ; Nutrients ; Water quality ; Pollution control ; Analytical methods ; Heavy metals / Australia / North Western Queensland / Lake Moondarra / Mount Isa
(Location: IWMI-HQ Call no: P 7743 Record No: H039693)
17 Amarasinghe, S. R; De Silva, C. S. 2006. Water quality assessment of agro wells in Vavuniya District for the use of agricultural and domestic purposes. In Dayawansa, N. D. K. (Ed.). Water resources research in Sri Lanka: symposium proceedings of the Water Professional’s Day 2006, Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka, 1 October 2006. Peradeniya, Sri Lanka: University of Peradeniya. Postgraduate Institute of Agriculture (PGIA). pp.41-54.
Wells ; Water quality ; Groundwater ; Analytical methods / Sri Lanka / Vavuniya District / Thandikulum / Kurumakadu
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040723)
18 Amoah, Philip. 2008. Wastewater irrigated vegetable production: contamination pathway for health risk reduction in Accra, Kumasi and Tamale, Ghana. Thesis submitted to the Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology (KNUST) in partial fulfillment of the requirements for the Degree of Doctor of Philosophy, Faculty of Science. 202p.
Wastewater irrigation ; Water quality ; Vegetables ; Lettuces ; Contamination ; Risks ; Pathogens ; Public health ; Agricultural workers ; Diseases ; Health hazards ; Risk management ; Biological analysis ; Coliform bacteria ; Helminths ; Soils ; Analytical methods ; Pesticides ; Irrigation practices / Ghana / Accra / Kumasi / Tamale
(Location: IWMI HQ Call no: IWMI 631.7.5 G200 AMO Record No: H041491)
19 Chandrajith, R.; Mahatantila, K.; Jayasena, H. A. H.; Tobschall, H. J. 2008. Geochemical characteristics of sediments from a reservoir (tank) ecosystem in Sri Lanka. Paddy and Water Environment, 6(4):363-371. [doi: https://doi.org/10.1007/s10333-008-0133-y]
Reservoir ; Tanks ; Ecosystems ; Sedimentary materials ; Analytical methods ; Pollution control ; Irrigation systems / Sri Lanka / Deduru Oya basin / Malagane tank / Maguru Oya sub-basin
(Location: IWMI HQ Call no: e-copy only Record No: H043179)
(0.83 MB)
Major, trace and selected high field strength element geochemistry of fresh-water sediments from the Malagane tank, Deduru Oya basin, Sri Lanka, has been investigated in this study. Sediment samples were collected from 13 locations and analyzed for their elemental distribution using the X-ray fluorescence technique. The sediments were characterized by relatively low organic matter, ranging from 4.8 to 16.9%. The elemental distributions were compared with those of the average upper continental curst, and it was found that, with a few exceptions, most of the studied elements are either comparable or depleted. Correlation and principal component analyses were applied to identify the relationships among studied elements. Major elements, most trace and light rare earth elemental distribution show strong positive correlation with Al2O3 and TiO2, which indicate that the phyllosilicates and heavy minerals in the sediments are the probable hosts for these elements. The results also indicate that the sediments in the Malagane tank are representative of the materials from the metamorphic rocks in the watershed and were subjected to changes within the tank ecosystem. The results obtained from this study are vital for future pollution management of tank ecosystems in Sri Lanka, since information on elemental distribution within the sediments of tank ecosystem is lacking.
20 Pavelic, Paul; Dillon, P. J.; Mucha, M.; Nakai, T.; Barry, K. E.; Bestland, E. 2011. Laboratory assessment of factors affecting soil clogging of soil aquifer treatment systems. Water Research, 45(10):3153-3163. [doi: https://doi.org/10.1016/j.watres.2011.03.027]
Soils ; Clogging ; Aquifers ; Recycling ; Water quality ; Water reuse ; Soil properties ; Analytical methods ; Laboratory experimentation ; Hydraulic conductivity
(Location: IWMI HQ Call no: e-copy only Record No: H043808)
(0.80 MB)
In this study the effect of soil type, level of pre-treatment, ponding depth, temperature and sunlight on clogging of soil aquifer treatment (SAT) systems was evaluated over an eight week duration in constant temperature and glasshouse environments. Of the two soil types tested, the more permeable sand media clogged more than the loam, but still retained an order of magnitude higher absolute permeability. A 6- to 8-fold difference in hydraulic loading rates was observed between the four source water types tested (one potable water and three recycled waters), with improved water quality resulting in significantly higher infiltration. Infiltration rates for ponding depths of 30 cm and 50 cm were higher than 10 cm, although for 50 cm clogging rates were higher due to greater compaction of the clogging layer. Overall, physical clogging was more significant than other forms of clogging. Microbial clogging becomes increasingly important when the particulate concentrations in the source waters are reduced through pre-treatment and for finer textured soils due to the higher specific surface area of the media. Clogging by gas binding took place in the glasshouse but not in the lab, and mechanical clogging associated with particle rearrangement was evident in the sand media but not in the loam. These results offer insight into the soil, water quality and operating conditions needed to achieve viable SAT systems.
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