使用综合方法对WadiFatimah的地下水质量进行评估和划定,用于农业公用事业,即国际标准,农业水质(AWQ)指数,灌溉水质指数(IWQI),和微量金属。收集了地下水样本(n=59),并对其进行了分析,pH值,主要和次要离子和痕量金属。根据粮农组织的建议,42%的样品(EC>3000µS/cm)不适合农业用途。AWQ指数,包括盐度危害,凯利的比率和纳%显示50%,19%和37%的样品,分别,不适合农业用途。USSL分类表明,地下水仅适用于高渗透性土壤和耐盐作物。IWQI建议,88%的样本可适度用于农业。水盐度和作物产量之间的相互关系证明了73%,59%,51%和25%的样品希望在枣树中产量达到90%,高粱,大米和柑橘类水果,分别。除下游地区外,地下水适用于枣树。硼浓度表明52%,81%和92%的样品适用于敏感,半耐受性和耐受性作物,分别。中部地下水(适用于敏感作物)中部和上游地区(半耐性作物)以及除下游地区(耐性作物)以外的所有地区都适合种植。痕量金属含量说明36%,34%,22%,8%,5%和100%的样品由于高浓度的Cr而不适合农业,Cu,Ni,V,Mn和Mo,分别在地下水中。Further,AWQ指数,IWQI,USSL分类和痕量金属确保下游的地下水,上游的一些口袋不适合农业用途。这项研究建议,该盆地的地下水更适合耐性作物(即椰枣棕榈,高粱),其次是半耐受性和敏感性作物。
Groundwater quality in Wadi Fatimah is evaluated and demarcated for agriculture utilities using comprehensive approaches namely, international standards, agricultural water quality (AWQ) indices, irrigation water quality index (IWQI), and trace metals. Groundwater samples were collected (n = 59) and analysed for EC, pH, major and minor ions and trace metals. According to FAO recommendations, 42% of samples (EC > 3000 µS/cm) are inappropriate for agricultural uses. AWQ indices including salinity hazard, Kelly\'s ratio and Na% show that 50%, 19% and 37% of samples, respectively, are unsuitable for agricultural uses. USSL classification reveals that groundwater is preferable only for high-permeability soils and salt-tolerant crops. IWQI suggests that 88% of samples are moderately usable for agriculture. The interrelationship between water salinity and crop yield justified that 73%, 59%, 51% and 25% of samples are desirable to yield 90% in date palm trees, sorghum, rice and citrus fruits, respectively. Groundwater is appropriate for date palm trees except in downstream regions. Boron concentration suggests that 52%, 81% and 92% of samples are suitable for sensitive, semi-tolerant and tolerant crops, respectively. Groundwater in the central part (suitable for sensitive crops), central and upstream regions (semi-tolerant crops) and all regions except downstream (tolerant crops) are suitable for cultivation. Trace metals contents illustrate that 36%, 34%, 22%, 8%, 5% and 100% of samples are inappropriate for agriculture due to high concentrations of Cr, Cu, Ni, V, Mn and Mo, respectively in the groundwater. Further, AWQ indices, IWQI, USSL classifications and trace metals ensure that groundwater in the downstream, and a few pockets in the upstream are unfit for agricultural uses. This study recommends that groundwater in this basin is more suitable for tolerant crops (ie. date palm, sorghum) followed by semi-tolerant and sensitive crops.