Reclamation of Land and Improve Water Productivity of Jaffna Peninsula of Northern Sri Lanka by Improving the Water Quality of the Lagoons

Subramaniam Sivakumar

Abstract


Jaffna is a peninsula which is 1000 km2 of land (out of which, Vadamarachchi Lagoon, Upparu Lagoon, Valukai aru and Elephant pass Lagoon are covered with 75, 25, 15 and 100 km2 of surface area and 287, 212, 104 and 907 km2 of catchments area, respectively) covered by Indian Ocean by 160 km of coastline and no location is more than 10 km away from the coast. Hence it is very much susceptible to the salt water intrusion in to the land area. The water resource mainly the underground water in Jaffna Peninsula is totally polluted due to prolonged negligence and improper management of existing  barrages at Thondamanaru, Ariyali and Ariyali and the salt water intrusion was taken place due to the none- maintenance of SWE bunds. In addition to these garbage and soakage pit pollution and increased usage of fertilizer chemicals also affected the ground water. As a result, people are facing problem in getting good quality water in their wells. Due to the salt water intrusion, hundreds of acres of lands, hundreds of wells are in abandon stage. There is a positive relationship between the level of salt water intrusion in Jaffna peninsula and the operation of the gates of Thondamanaru, Ariyali and Arali barrages across the three main sea mouths of the Jaffna lagoons. Tabulation of a correlation for the entire lagoon system operation will significantly reflect the level of salt water intrusion effect of Jaffna peninsula. A research is being carried out at the moment to address the problem and to find a solution to this long standing crucial issue of the people of Jaffna peninsula. This paper outlines the research methodology and its direction towards the problem accreditation.


References


Arumugam.S, 1956, River basin Development of Ceylon

Bear J, Dagan G, 1968, Solving the problem of local up conning in a coastal aquifer by the method of small perturbations, Journal of hydraulic research, Vol.6

Columbus N, 1965, Viscous Model Study of saltwater intrusion in water table aquifer, Water resource research, Vol.1, No.2

Cooray, P G, 1984. An introduction to the geology of Sri Lanka, Colombo, National Museum of Srilanka, 1984

H.D.Shrma and A.S.Chawla, 1977, Manual on Groundwater and Tube Well. Technical report 18 Central Board of Irrigation and Power New Delhi- India.

Kashef A I, 1972, What do we know about salt water intrusion, Water Resource Billiton Vol.8, No.2

Rushton KR, 1980, Differing positions of saline interfaces in aquifers and observation bore holes, Journal of Hydrology, Vol.48

Sivakumar S S, 2008, Conjunctive Use of Surface and Groundwater to Improve Food Productivity in a Restricted Area, PhD thesis, University of Moratuwa

Sivakumar.S.S, 1993, Spreadsheet model for Groundwater Studies, M Engineering thesis, University of Roorkee

Sivakumar.S.S, 2002, Water resource development strategy for North East 2002/2012.

Strack LDO, 1976, A single potential solution for regional interface problems in coastal aquifers, Water resource research, Vol. 16, No.6

Ven Der Veer P, 1977, Analytical solution for a two dimensional fluid flow problems in coastal aquifer, Journal of Hydrology, Vol.35


پاراگلایدر Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

ISSN : 2251-1563