Open AccessStatistical Estimation Of Useful Life Of Tubewells
Author(s) -
Muhammad Khalil Afzal
Publication year - 1973
Publication title -
pakistan development review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.154
H-Index - 26
ISSN - 0030-9729
DOI - 10.30541/v12i1pp.81-90
Subject(s) - estimation , waterlogging (archaeology) , environmental science , computer science , environmental resource management , engineering , ecology , biology , systems engineering , wetland
The use of deep public tubewells on a large scale in areaswhere the twin menace of waterlogging and salinity emerged as a seriousthreat to the fertile irrigated lands in the Punjab was the first majoreffort which the Govern¬ment undertook in the shape of SCARPS (SalinityControl and Reclamation Projects) in order to effectively combatwaterlogging and salinity. SCARP-I, the Pilot Project under thisprogramme was launched in the central Rachna Doab area of the Punjab—thearea found to be worst affected by the menace. This project involvedinstallation of more than 2000 tubewells of medium to large size, withpumping capacity varying from two to five cusecs, at a substan¬tialcapital and maintenance cost. As the expenditure involved was large itwas essential to keep a continuous watch on the performance of tubewellsand project their future behaviour in terms of their discharge. Thequestion most relevant to the cost-benefit study of such a project isobviously the estimates of expected length of time for which thetubewells could go on func¬tioning efficiently with routinemaintenance.