Published November 1, 2018 | Version v1
Journal article Open

Applicability of Flexible Water Bag Technology in Redistributing Surplus Water to Dry Zone of Sri Lanka

  • 1. University of Kelaniya

Description

Two third of total land area of Sri Lanka is defined as Dry Climatic Zone (DCZ) due to its seasonal drought. As a country, attention has given to increase water availability even during the dry period and for long-term drought periods. Sri Lanka had a hydraulic civilization since fourth century BC, as a result, DCZ dwellers have adopted to paddy cultivation and other high water consumed crops. Currently, DCZ suffers from shifting climate change impacts. This paper has carefully examined the applicability of flexible water bag technology as an alternative strategy to distribute surplus water to DCZ. However, Sri Lanka receives 130 billion cubic meter of rainwater, yearly but in the same time natural river basins annually discharge 50 billion cubic meters of water to the Sea. Using a flexible water bag as a method of bulk water transportation has developed over the last few decades. These bags have evolved largely and at present, it also has capability to transport 2500 m3 of water. This method has been tested and proven a viable solution. The main objective of the study is to determine whether, underutilized surplus water resource can be redistributed to the DCZ by using flexible water bag technology. Secondary data were used to examine the feasibility of the main objective. This study has depended on secondary data from Department of Meteorology and Department of Irrigation on rainwater density; discharging quantities of water from river basins. Analytical methodology is followed to find out the conceptual feasibility in an inductive way. The conclusion of the study confirms that the flexible water bag technology can be used to redistribute surplus water to the DCZ of Sri Lanka.

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