Assessment of drainage water quality in pre- and post-irrigation seasons for supplemental irrigation use

Abstract

Knowledge on hydrochemistry is very important to assess the quality of water for effective management of water resources or drainage water reuse. On this basis, an assessment of water quality was conducted in the Agoulinitsa district in Peloponnese (western Greece). Both drainage and irrigation channel water samples have been collected, treated, and subjected to chemical analysis. A characterization has been carried out using the Piper-trilinear diagram. Assessment of the water samples from the point of view of sodium adsorption ratio, Na(+)%, and residual sodium carbonate indicated that 60.0% and 83.3% of the drainage water samples during pre- and post-irrigation season, respectively, as well as the irrigation channel water samples, are chemically suitable for irrigation use. Moreover, assessment of the water samples by comparing quality parameters with the Food and Agriculture Organization guidelines indicated that 20.0% and 44.4% of the drainage water samples collected during pre- and post-irrigation season, respectively, as well as the irrigation channel water samples could cause slight to moderate problems to the plants. On the other hand, 80.0% and 55.6% of the drainage water samples collected during pre- and post-irrigation season, respectively, could cause immediate development of severe problems to the plants growth.

Evaluation of Shallow Groundwater Contamination and Associated Human Health Risk in an Alluvial Plain Impacted by Agricultural and Industrial Activities, Mid-west China

“…This can be further approved by the distribution of NO 3 -. It is widely accepted that NO 3 -is an effective indicator of agricultural contamination (Alexakis et al 2012;Dar et al 2010;Suthar et al 2009). The concentration of NO 3 -(as N) is in the range of 0.55-186.70 mg/L with a mean of 20.21 mg/L.…”

Drainage water use options for a regional irrigation system

“…An evaluation of the quality of fresh and drainage water in the study area was presented in a previous study (Alexakis et al, 2012). (Letey and Dinar, 1986) slight to moderate restrictions on direct use for irrigation according to the criteria given by Ayers and Westcot (1985) for water in agriculture.…”

Assessment of water quality in drainage canals of Çarşamba Plain, Turkey, through water quality indexes and graphical methods

“…Several researchers used different index values to assess the suitability of surface and ground waters for irrigation (Arumugam and Elangovan, 2009;Dhembare, 2012;Ishaku et al, 2011;Nag et al, 2013;Rama et al, 2013;Sadashivaiah et al, 2008;Thivya et al, 2013;Wanda et al, 2013). Alexakis et al (2012) took water samples from drainage canals before and after irrigations in Greece and assessed the water quality of these canals. Researchers calculated SAR, RSC and %Na values of the water samples and prepared piper diagram to present the chemistry of water samples and define water type.…”