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首页> 外文期刊>Sarhad Journal of Agriculture >Characterization of tube well irrigation water and associated soils in the salt affected area of district Mardan.
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Characterization of tube well irrigation water and associated soils in the salt affected area of district Mardan.

机译：马尔丹地区受盐影响地区的管井灌溉水和相关土壤的特征。

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摘要

A study was conducted to characterize tube well irrigation waters and associated soils in the salt affected area of district Mardan, Pakistan during the rabi season of 2004-2005. Samples of the tube wells/dugwells waters and associated soils were collected and analysed in the laboratory. All the water samples were alkaline with residual sodium carbonate (RSC) values more than 2.5. Sixty percent of the sites had water with sodium adsorption ratio (SAR) values greater than 10. Fifty percent samples had moderate to severe salinity. Soils irrigated with the respective tube well waters showed problems of sodicity. Soil electrical conductivity (EC< sub>e) and soil solution Na+ showed positive response to EC and Na+ of tube wells' water (r=0.817** and 0.871**, respectively). Ionic concentration of irrigation water had significant relation with that of soils suggesting that most of the salts were deposited through the continuous use of tube well waters. Soils of all the sites were alkaline in reaction, highly calcareous and low in organic matter. Tube well waters of all the sites had limited utility for irrigation due to high RSC and SAR. Management practices like application of amendments, growing salt tolerant crops and provision of supplemental irrigation of canal waters need due consideration in the study area for judicious use of this mentioned resource.
机译：进行了一项研究，以表征2004-2005年狂犬病季节期间巴基斯坦马尔丹地区受盐影响的地区的管井灌溉水和相关土壤的特征。收集管井/深井水和相关土壤的样品，并在实验室中进行分析。所有水样品均为碱性，残留碳酸钠（RSC）值大于2.5。百分之六十的地点的水的钠吸附率（SAR）值大于10。百分之五十的样本具有中度至重度盐度。用相应的管井水灌溉的土壤显示出钠的问题。土壤电导率（EC e ）和土壤溶液Na +对管井水的EC和Na +表现出正响应（分别为r = 0.817 **和0.871 **）。灌溉水的离子浓度与土壤的离子浓度有显着关系，这表明大多数盐是通过连续使用管井水而沉积的。所有地点的土壤反应呈碱性，高度钙质，有机质含量低。由于高RSC和SAR，所有地点的管井水灌溉的效用有限。在研究区域，应适当考虑诸如修正案的应用，耐盐作物的生长和运河水的补充灌溉等管理措施，以明智地使用上述资源。

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