Utilization of PVA for Reclamation of the Salt-affected Soils in Northeast Thailand. Part 1 : Laboratory Experiments

Abstract

Surface layers of the salt-affected areas in Northeast Thailand were ususally thin, sandy and underlain by a dark colored impermeable layer which inhibited desalinization in rainy season. In laboratory, PVA was confirmed to be effective in stabilizing aggregates of layers and was found to supress capillary rise of sline water and to promote leaching of both saline and fresh waters. thus, PVa was expected to help desalinization and suppress esosion in the salt-affected areas.