阿拉尔垦区地下水作为灌溉用水的水质评价

Evaluating the Quality of Ground Water as Irrigation Water in Alar Reclamation Area

对阿拉尔垦区部分地区地下水取样进行简单分析,根据地下水中几种主要阴阳离子的含量和矿化度的大小,用灌溉系数法、盐度和碱度指标的综合评价法对灌溉水质进行定量评价.结果表明:本区地下水对作物和土壤只有盐害,而无碱害和盐碱害,除少部分为不太适用的水之外,其他为适用的水和良好的水.

A number of samples of Alar ground water were brieflyanalysed. According to the content of the chief anions, cations, andthe mineralized degree, the irrigating water quality were evaluatedquantitively by means of irrigation coefficient and by comprehen-siveevaluation on the target of salinity and alka linity. The resultsindicate that the ground water of this area has no alkali harm orsaline-alkali harm hut saline harm to the crop and soil. Except thatonly a small part of ground water is unfit to irrigate, the remains isproper or fine water.