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Thursday, August 6, 2020 | History

3 edition of The impact of the catchment development of Mahakanadarawa Reservoir found in the catalog.

The impact of the catchment development of Mahakanadarawa Reservoir

C. Kariyawasam

The impact of the catchment development of Mahakanadarawa Reservoir

by C. Kariyawasam

  • 69 Want to read
  • 30 Currently reading

Published by Agrarian Research and Training Institute in Colombo, Sri Lanka .
Written in English


Edition Notes

StatementC. Kariyawasam, A.D.C. Jayanandana, M.D.U.P. Kularatne.
SeriesOccasional publication ;, no. 32
Classifications
LC ClassificationsMicrofiche 85/63041 (T)
The Physical Object
FormatMicroform
Pagination74 p.
Number of Pages74
ID Numbers
Open LibraryOL2697215M
LC Control Number85908678

Rainwater harvesting, in its broadest sense, is a technology used for collecting and storing rainwater for human use from rooftops, land surfaces or rock catchments using simple techniques such as jars and pots as well as engineered techniques. Rainwater harvesting .   The catchment is ha large, of which 76 % is impervious. Storm water is discharged to the Antoninek Reservoir (Fig. 1b). Catchment no. 5 covers the area of a small multi-family housing district (with apartment buildings). The catchment is ha large, of which only % is impervious (Fig. 1c). The small impervious area and a slight Cited by:

A simplified reservoir simulation model was developed to study the water balance of the lagoon Downstream of the reservoirs of the four regulated river basins considered as local catchment to the. Lakes and reservoir are important water resources in Malaysia. Rapid pace of development surrounding many of the lake catchments has had significant effects on the quality of the water body.

Simulation results of GBHM and the climate elasticity model showed that climate impact was accountable for about 55% and 51% of the decrease in reservoir inflow, respectively. The indirect impact of human activity (mainly man-made land use and vegetation changes) accounted for 18% of the decrease in reservoir by: Sedimentation is a major problem for agricultural dams in Botswana, as it reduces the storage capacity and life span of the reservoirs. The process of sedimentation starts from day one of the impounding of water in any given reservoir. Even though a provision is made for every reservoir during planning for a certain storage capacity, specifically for sediment deposition, called dead storage, a Cited by: 4.


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The impact of the catchment development of Mahakanadarawa Reservoir by C. Kariyawasam Download PDF EPUB FB2

When the quantity of flood water released from the reservoirs in the upper catchment of Malwathu Oya river basin reaches a certain level, social, economic and environmental damages occurs to the.

In this paper, a model is developed to assess such impact. The results of the four systems of reservoirs studied indicates that the maximum economic benefits are obtained when about 60% of the village tanks are rehabilitated. Sketch of the catchment where all the parameters relevant to the analyses are indicated (left); A R is the upstream catchment area (L 2); A L is the downstream catchment area (L 2); Q i is the inflow to the reservoir (L 3 T −1), that is, the discharge from the upstream catchment; Q R is the outflow from the reservoir (L 3 T −1); Q L is the lateral inflow to the river (L 3 T −1), that is Cited by: 2.

In this paper, a model is developed to assess such impact. The results of the four systems of reservoirs studied indicates that the maximum economic benefits are.

However, the impact of catchment features on flood peak flow is neither systematically studied nor well explored, particularly in large-sample datasets. This lack of understanding hinders improved understanding of catchment storm-flood processes, and furthermore, prediction in ungauged basins (Sivapalan et al.

).Cited by: 7. Although the development of fisheries in reservoirs is a very recent phenomenon, major irrigation schemes, as evident from the earliest written records in the Mahawansa, date back to the fourth century B.C.

(Brohier, ; Parker, ). This assessment of the impact of current farm dams development on the surface water resources of the Onkaparinga Catchment is intended to contribute to the body of knowledge that will assist the effective management of water resources within the study area.

In present study, Environmental Impact Assessment (EIA) of Durgavati Reservoir Project, in India has been done using Rapid Impact Assessment matrix method (RIAM).

The results of the study revealed that % of the impacts are positive and % are negative. Most of the negative impacts of water reservoir are on Bio- Ecological components. Strategies for Catchment Development Master Plan and Economic Aspects of Water Resource Planning Article (PDF Available) July with Reads How we measure 'reads'.

Work on the 94 kilometre feeder canal from Moragahakanda to Mahakanadarawa reservoir begins. Abstract. Lake Balkhash is Kazakhstan’s second most important natural inland water reservoir, whose catchment basin is shared between the Republic of Kazakhstan (60% of the catchment’s area) and the People’s Republic of China (40% of the catchment).Cited by: 5.

a catchment area of one million km2 (i.e., 56% of the total catchment area of the river system). The budget of the project, including construc-tion of the dam, the ship lock, power plant, and compensation for the migration of million people from the reservoir area, reaches the astronomical figure of CNY billion (USD billion).Cited by: 7.

1 CATCHMENT AREA TREATMENT PLAN 4 Intoduction 4 Project Description 5 Components of Project 5 Important Parameters 6 Total Irrigation Potential 6 Financial Progress 6 Basin Development 7 Objectieve 13 Free Draining Catchment 13 Topogaphy 15 Soil 16File Size: 3MB.

In large dam projects, affected people often subsidize the project with their agricultural and grazing lands, gardens, trees, river valleys and water sources, homes, burial grounds.

Compensation packages that serve as mitigation for these losses depend on the sets of. Effects on reservoir water.

Action on water other than in the reservoir. Drying up of water Change in water table Catchment management landslide. Transpiration. Transpiration is the loss of water from a plant by evaporation Water can only evaporate from the plant if the water potential is lower in the air surrounding the plant.

By itself, the connection of the reservoir to the stream is key to understanding the impacts of the reservoir on the river flow. Indeed, this connection will impact both the inflow and the outflow.

Small reservoirs can collect all the upstream flow ( by: Surface catchment systems • Harvesting of rainwater from rock outcrops/slopes, concrete surfaces, plastic sheets or treated ground surfaces. • Consist of catchment area, retention and conveyance structures and storage tank/reservoir or even low yielding wells (recharging aquifers with rainwater – categorized as recharging structures).

The Mahaweli Water Security Investment Program (“investment program”) is the Huruluwewa, Manankattiya, Eruwewa and Mahakanadarawa via 82 km of canals (including a 26 km tunnel).

These reservoirs supply existing irrigation and water exacerbating soil/bank erosion in the upper catchment and loss of reservoir storage capacity.

Nabaprabhat Paul and L. Elango, "Predicting future water supply- demand gap with a new reservoir, desalination plant and waste water reuse by water evaluation and planning model for Chennai megacity, India," Groundwater for Sustainable Development, Vol.

72, pp.March km2) to Doctors Creek Reservoir, from which the township of Lexton obtains domestic water supply. The area proposed for proclamation covers the western portion of the Laanecoorie Reservoir catchment and includes the river environs for one kilometre downstream of the dam where the offtake point for the Dunolly/Tarnagulla water supply is located.

This book is a collection of innovative up-to-date perspectives on key aspects of water resources planning, development, and management of importance to both professional practitioners and researchers. Authors with outstanding expertise address a broad range of topics that include planning strategies, water quality modeling and monitoring, erosion prediction, freshwater inflows to estuaries Cited by: 1.The catchment has a population of million inhabitants, with a density of 28 inhabitants km −2 in Spain and inhabitants km −2 in Portugal (EUROSTAT, ).

There are 39 reservoirs located along the catchment with a total storage capacity above 10 hm 3 (the threshold limit assumed here to impact the hydrological regime of the Guadiana.Protecting surface water for health provides guidance and supporting information on the development and application of WSPs in drinking-water catchments to address the assessment and control of surface-water hazards in an effective way.