Your search found 15 records
1 Center for Water Resources, Anna University. 1988. Consultancy report on application of MIT simulation model to Kalu Ganga (Sri Lanka) and Narmada (India) river basins, submitted to World Meteorological Organization, Geneva. Madras, India: The Center. vii, 106p.
River basin development ; Simulation models ; Hydrology ; Reservoir storage ; Irrigation requirements ; Performance evaluation ; Economic impact / Sri Lanka / India / Kalu Ganga
(Location: IWMI-HQ Call no: 631.7.1 G000 CEN Record No: H04301)
2 Sri Lanka. Ministry of Agriculture, Lands and Forestry; ADB. 1997. Upper watershed management study, Democratic Socialist Republic of Sri Lanka - Final report: Appendix 2 - Land resources, land use planning and watershed management, aspects (draft) Draft report prepared by LTS International Ltd, Resources Development Consultants and Hunting Technical Services Ltd. Project preparation technical assistance 2619. 65p.
Watershed management ; Catchment areas ; Land use ; Erosion ; Mapping ; Reservoirs ; Sedimentation ; Water potential ; Afforestation ; Soil water ; Water balance ; Models / Sri Lanka / Mahaweli / Uma Oya / Walawe Ganga / Kirindi Oya / Kalu Ganga
(Location: IWMI-HQ Call no: P 4461 Record No: H020415)
3 Sri Lanka. Ministry of Agriculture, Lands and Forestry; ADB. 1997. Upper watershed management study, Democratic Socialist Republic of Sri Lanka - Final report: Appendix 4 - Soil conservation and agricultural aspects (draft) Draft report prepared by LTS International Ltd, Resources Development Consultants and Hunting Technical Services Ltd. Project preparation technical assistance 2619. 48p.
Watershed management ; Soil conservation ; Farming systems ; Agricultural credit ; Agricultural extension ; Livestock ; Erosion ; Land tenure ; Rehabilitation ; Training ; Monitoring ; Evaluation / Sri Lanka / Uma Oya / Walawe Ganga / Kirindi Oya / Kalu Ganga
(Location: IWMI-HQ Call no: P 4463 Record No: H020417)
(1.75 MB)
4 Sri Lanka. Ministry of Agriculture, Lands and Forestry; ADB. 1997. Upper watershed management study, Democratic Socialist Republic of Sri Lanka - Final report: Appendix 8 - Initial environmental examination (draft) Draft report prepared by LTS International Ltd, Resources Development Consultants and Hunting Technical Services Ltd. Project preparation technical assistance 2619. ii, 60p.
Watershed management ; Environmental effects ; Monitoring ; Forestry ; Afforestation ; Soil classification / Sri Lanka / Kalu Ganga / Walawe Ganga / Kirindi Oya / Uma Oya
(Location: IWMI-HQ Call no: P 4466 Record No: H020420)
5 Sri Lanka. Ministry of Agriculture, Lands and Forestry; ADB. 1997. Upper watershed management study, Democratic Socialist Republic of Sri Lanka - Final report: Appendix 9B - Economic and financial analysis (draft) Draft report prepared by LTS International Ltd, Resources Development Consultants and Hunting Technical Services Ltd. Project preparation technical assistance 2619. 51p.
Watershed management ; Economic analysis ; Benefits ; Projects ; Costs ; Financing ; Crop production ; Income / Sri Lanka / Kalu Ganga / Walawe Ganga / Kirindi Oya / Uma Oya
(Location: IWMI-HQ Call no: P 4468 Record No: H020422)
6 Shand, R. T. (Ed.) 1990. Future directions for irrigation and agricultural diversification in Sri Lanka. Report of a study under the Public Sector Restructuring Project in Sri Lanka, for the World Bank and the Ministry of Finance and Planning, Government of Sri Lanka, Colombo, 1990. ix, 295p.
Irrigation programs ; Water distribution ; History ; Public investment ; Expenditure ; Water lifting ; Performance indexes ; Cost benefit analysis ; River basin development ; Tank irrigation ; Models ; Rural development ; Development projects ; Rehabilitation ; Modernization ; Reservoirs ; Groundwater irrigation ; Irrigation canals ; Crops ; Diversification ; Rice ; Agricultural policy ; Marketing ; Exports ; Social impact / Sri Lanka / Mahaweli Project / Gal Oya Project / Uda Walawe Project / Kurunegala / Kotmale / Victoria / Randenigala / Moragahakanda Project / Kalu Ganga / Nalanda Reservoir / Uma Oya Project / Loggal Oya Project / Walagambahuwa / Weli Oya / Muthukandiya
(Location: IWMI-HQ Call no: P 5302 Record No: H024909)
7 Medawewa, S. 1999. Proposed upper watershed management project. In Sri Lanka. Forest Department; Participatory Watershed Management Training in Asia (PWMTA). Proceedings of the Workshop on Watershed Management, Sri Lanka Forestry Institute, Nuwara Eliya, Sri Lanka, 24-25 April 1997. Battaramulla, Sri Lanka: Forest Department. pp.115-121.
Water management ; Development projects ; Environmental sustainability / Sri Lanka / Uma Oya / Walawe Ganga / Kirindi Oya / Kalu Ganga
(Location: IWMI HQ Call no: 333.91 G744 SRI Record No: H025395)
8 Danish Hydraulic Institute; Sir William Halcrow & Partners Ltd.; Lanka Hydraulic Institute Ltd. 1999. Western River Basins Sector Project, TA 3030 - SRI: Phase 1 report - Executive summary. Draft report produced in compliance with the Terms of Reference for TA 3030-SRI, (ADB Contract No.98-502) xviiip.
River basin development ; Water availability ; Water users ; Irrigation programs ; Water supply ; Environmental effects ; Water pollution ; Water quality ; Standards ; Discharges ; Effluents ; Economic aspects ; Social aspects ; Poverty ; Households ; Water management ; Water allocation ; Models ; Investment / Sri Lanka / Maha Oya River Basin / Kelani Ganga River Basin / Kalu Ganga / Attanagalu Oya
(Location: IWMI-HQ Call no: P 5464 Record No: H026431)
9 Wickramage, F. 2001. Upper watersheds management to stabilise ecology. Daily News, August 25:18.
Watershed management ; Soil degradation ; Vegetables ; Mountains ; Women ; Farmer participation ; Forestry ; Ecology / Sri Lanka / Ratnapura / Badulla / Nuwara Eliya / Ama Au / Wile Ganga / Kirindi Au / Kalu Ganga
(Location: IWMI-HQ Call no: P 5839 Record No: H028757)
10 Hapuarachchi, H. A. P.; Zhijia, L.; Flugel, Albert Wolfgang. 2003. Application of the SWAT model for river flow forecasting in Sri Lanka. Journal of Lake Sciences, 15:147-154.
(Location: IWMI-HQ Call no: e-copy only Record No: H033902)
(0.20 MB)
In the present study, the SWAT model and the Xinanjiang model have been used for daily flow forecasting of the Kalu River upper catchment in Sri Lanka. Kalu River is the second largest river in Sri Lanka and due to heavy rainfalls over the catchment, steep river slopes with narrow valleys in the upper catchment and mild riverbed slopes with wide and flat plains in the middle and lower catchments, the floods in Kalu River basin have become regular. The SWAT model has been used for daily river flow predictions in the Kalu River, and compared with the results obtained using the Xinanjiang model. In this study, the Xinanjiang model has performed slightly better than the SWAT model for forecasting the daily flow of Kalu River. In fact it might be partly attributable due to the poor quality and inadequate data, since the output of the SWAT (distributed model) strictly depends on the quality of input data. In addition, many people in Sri Lanka use well water for their domestic purposes. When considering a catchment as a whole, normally it is a very large area, and therefore it is not possible to record or count all the individual minor scale water utilizations in detail such as small irrigation, animal husbandry in minor scale and industrial water utilizations in minor scale. The cumulative value of such water utilizations might be large. The absence of these data may specially affect the distributed models in water balancing. But the conceptual watershed models (e.g. Xinanjiang model) are capable of adjusting their parameters while calibrating, according to the situation since most of their parameters have no physical background. As a result conceptual watershed models show better performance than distributed models where the catchment characteristics and model inputs are limited or incomplete.
11 Weragala, Neelanga. 2004. Estimation of monthly river flows for un-gauged catchments in Sri Lanka: a non-linear spatial interpolation approach. In Conference on Sri Lanka: current challenges, University of Colombo, Faculty of Graduate Studies, 17-18 December 2004. Proceedings. Vol. 1. Colombo, Sri Lanka: University of Colombo. pp.3-14.
River basins ; Flow ; Measurement ; Estimation ; Catchment areas ; Runoff ; Hydrology / Sri Lanka / Agaliya / Gin Ganga / Kelani Ganga / Kalu Ganga
(Location: IWMI-HQ Call no: IWMI 574.526323 G744 WER Record No: H035895)
12 Bastiaanssen, W. G. M.; Chandrapala, L. 2003. Water balance variability across Sri Lanka for assessing agricultural and environmental water use. Agricultural Water Management, 58(2):171-192.
Water balance ; Water use ; Evaluation ; Remote sensing ; Satellite surveys ; Rain ; Evaporation ; Runoff ; River basins ; Rice / Sri Lanka / Maliboda / Mannar / Kalu Ganga
(Location: IWMI-HQ Call no: PER, IWMI 631.7.1 G 744 BAS Record No: H031457)
13 Muthuwatta, Lal; Perera, H. P. T. W.; Eriyagama, Nishadi; Surangika, Upamali K. B. N.; Premachandra, W. W. 2017. Trend and variability of rainfall in two river basins in Sri Lanka: an analysis of meteorological data and farmers’ perceptions. Water International, 12p. (Online first) [doi: https://doi.org/10.1080/02508060.2017.1406784]
Climate change adaptation ; Weather data ; River basins ; Rain ; Farmers ; Wet season / Sri Lanka / Medawachchiy / Mahailluppallama / Maradankadawala / Mihintale / Murunkan / Vavuniya / Malwathu Oya / Kalu Ganga
(Location: IWMI HQ Call no: e-copy only Record No: H048451)
Selected rainfall characteristics derived by analyzing observed rainfall data in two Sri Lankan river basins (Malwathu Oya and Kalu Ganga) were compared with the perceptions of farmers. The rainfall characteristics used for this analysis are trends, onset and cessation dates, length of the growing period, number of rainy days, and length of the dry spell. Farmers’ perceptions of changes in those characteristics were collected through household surveys. The majority of farmers in both river basins failed to recognize the long-term upward trend in annual rainfall. They also failed to describe the adaptation measures they were currently practising.
14 Ariyathunga, K.; Ruberu, J.; Dayananda, P. G.; Wehella, V. (Eds.) 2019. Mahaweliya: sanhidiyawe gangawa. [Mahaweli: the river of reconciliation]. Colombo, Sri Lanka: Mahaweli Authority of Sri Lanka. 641p.
Water resources ; Water management ; River basin development ; Tanks ; Development projects ; Irrigation programs ; Social aspects ; Economic aspects ; Environmental effects ; Landscape conservation ; Land use ; Rehabilitation / Sri Lanka / Moragahakanda Project / Mahaweli River / Amban Ganga / Kalu Ganga / Laggala / Minipe
(Location: IWMI HQ Call no: 631.7 G744 ARI Record No: H049386)
(2.45 MB)
15 Ariyathunga, K.; Ruberu, J.; Dayananda, P. G.; Ayagamage, N.; Wehella, V.; Bandara, M. W. R. (Eds.) 2019. 1995 n pasu Mahaweli. [Mahaweli since 1995]. 2nd ed. Colombo, Sri Lanka: Mahaweli Authority of Sri Lanka. 250p.
Water resources development ; Irrigation management ; Water management ; Irrigation programs ; Development projects ; River basin management ; Watershed management ; Water security ; Irrigation canals ; Rehabilitation ; Environmental protection ; Investment ; Arid zones ; Settlement / Sri Lanka / Mahaweli Project / Moragahakanda Project / Kalu Ganga / Amban Ganga / Medirigiriya / Minipe / Dumbara Valley
(Location: IWMI HQ Call no: 631.7 G744 ARI Record No: H049385)
(1.77 MB)
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