Suitability Assessment of Shallow Groundwater for Agriculture in Sand Dune Area of Northwest Honshu Island, Japan

Abstract

Abstract. Groundwater quality is an inevitable factor for sustainable agriculture as a source of irrigation water. Therefore, the study was conducted in an irrigated sand dune area of northwest Honshu island in Japan to evaluate the groundwater quality for irrigation. Three observation wells were installed in the investigated field made of polyvinyl chloride (PVC) pipe with three plastic tubes to collect groundwater of 2.0 m, 2.5 m and 3.0 m. The sampling was performed every month from January to November, 2005. Assessment of groundwater quality was performed on the basis of total dissolved solids (TDS), concentration of sodium (Na), calcium (Ca) and magnesium (Mg), sodium absorption ratio (SAR), total hardness (H T ) and concentration of phosphate phosphorus (PO 4 -P). Total dissolved solids in groundwater was ranged between 145.5-249.4 mg l -1 during the investigation period, revealed that irrigation using groundwater of the study area would not cause salinity hazards. Concentrations of Na, Ca, and Mg were decreased with depth throughout the investigation period. The average concentration of Na and SAR value were 18.8 mg l -1 and 0.81, respectively. Since groundwater of the study area contained low concentration of Na with low SAR values, there would not be any possibility of sodium hazards from irrigation using groundwater. On average groundwater of the study area contained 27.5 mg l -1 Ca and 9.35 mg l -1 Mg, which might contribute to moderate hardness of groundwater in the study area.

Groundwater chemistry evaluation for drinking and irrigation utilities in east Wasit province, Central Iraq

“…TDS values represent the concentration of a solution in terms of the total weight of dissolved solids, which in turn reflects the degree of salinity (Mitra et al 2007). To ascertain the suitability of groundwater for any purpose, it is essential to classify the groundwater depending upon its hydrochemical properties based on the TDS values (Todd 2009), Table 4.…”

Statistical Analysis of the Hydrogeochemical Evolution of Groundwater in the Rangampeta area, Chittoor District, Andhra Pradesh, South India

“…According to all that mentioned above the factor II and factor III can be denoted as groundwater-host rock interaction factor. Factor IV was loaded with SO 4 2-. It may represent the variations in agricultural management such as using different fertilizers in the studied area.…”

“…On the other hand, in some areas groundwater resources are at risk from the results of point and non-point source pollutants such as agricultural and industrial activates, animal waste and household chemicals run-off, failing septic systems, etc. [3,4,5,6].…”

An Assessment of Groundwater Quality in Coastal Taluks of Tiruvallur Districts in Tamil Nadu, India

“…The suitability of groundwater for different purposes depends upon its intrinsic quality which is influenced by inputs from the atmosphere, soil and rock weathering, as well as from anthropogenic activities. Due to lack of proper awareness, public ignorance of environmental issues, indiscriminate disposal of increasing anthropogenic wastes, unplanned application of agrochemicals, and discharges of improperly treated sewage have resulted in the deterioration of surface and subsurface water (Singh and Hasnain 1998;Mitra et al 2007; Kumar et al 2008; Ishaku 2011; Ewusi et al 2013; Kalpana and Elango 2013). One has almost forgotten that, The value of groundwater lies not only in its widespread occurrence and availability but also in its consistent good quality (Rajmohan et al 2000;UNESCO 2000 The high population density along the banks of major rivers and coastal areas is attributed to the easy availability of water.…”