Impact of Subsurface Drainage System on Soil Physico-Chemical Properties - A Review

Author: Sahana*, Rajashree, Eramma and Ramarao

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Abstract

Subsurface drainage has been used for more than a century to keep water table at a desired level of salinity and water logging control. This paper has been focused on the impact assessment of pilot studies in India from 1991 to 2018. This review article may prove quite useful in deciding the extent of reduction in salt content in soil after installation of subsurface drainage system. A number of pilot studies have been taken up in past to solve the problems of soil salinity and water logging in India. The general guidelines that arise on the behalf of this review paper are, leaching through subsurface drainage increased soil porosity, infiltration rate, organic carbon, available water, and decreased bulk density. The analysis of pre and post subsurface drainage soil samples revealed that the treatment is effective for saline soil reclamation by reducing in pH and EC of post subsurface drainage soil samples and ECe, Ca2+, Mg2+ and Na+ content was found to be reduced significantly as com

Keywords

Subsurface drainage, salinity and water logging.