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首页> 外文期刊>The Science of the Total Environment >Groundwater nitrate contamination and agricultural land use: A grey water footprint perspective in Southern Apulia Region (Italy)
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Groundwater nitrate contamination and agricultural land use: A grey water footprint perspective in Southern Apulia Region (Italy)

机译：地下水硝酸盐污染和农业土地利用：南部普利亚地区（意大利）的灰色水足迹

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摘要

In this paper, we present a new approach based on the GreyWater Footprint (GWF) concept for the determination of groundwater nitrate contamination, with a focus on the agricultural impact in the Southern Apulia Region (Italy). The GWF assessment allows us to highlight wells where nitrate contamination is higher and for which a verification of the nature of contamination is necessary, potentially identifying certain contexts associated with risk factors present in the area. Data show higher nitrate GWF values for vineyards than for olive groves, particularly in areas used for the production of table grapes. Indeed, it is possible to observe that the Western Ionian-Tarantino arch is characterized by a high average level of the GWF indicator, area characterized by an agricultural land use (vineyards, orchards, simple arable land). Another important area is the Brindisi plain, predominantly characterized by an agricultural vocation and a related fertilizer use. The situation in the whole Salento peninsula is more heterogeneous. The results of the GWF show high values in equally distributed points with a clear frequency in the coastal areas of the Ionic arch (Eastern Tarantino and Salento). The Water Footprint methodology and in particular the GWF approach used in this study conceives a useful indicator for the agricultural policy planning processes, a criterion to establish land use management according to the status of hydrological basin and a tool for assessing the pollution monitoring programs. (C) 2018 Elsevier B.V. All rights reserved.
机译：在本文中，我们提出了一种基于灰色水足迹（GWF）概念的测定地下水硝酸盐污染的新方法，重点是对南部普利亚地区（意大利）的农业影响。 GWF评估使我们能够突出显示硝酸盐污染较高且需要验证污染性质的井，从而有可能确定与该地区存在的风险因素相关的某些环境。数据显示，葡萄园的硝酸盐GWF值高于橄榄树，特别是在食用葡萄生产区。确实，可以观察到，爱奥尼亚-塔兰蒂诺西部拱门的特征是GWF指标的平均水平高，该地区的特征是农业用地（葡萄园，果园，简单的耕地）。另一个重要的地区是布林迪西平原，主要特征是农业活动和相关的肥料使用。整个萨伦托半岛的情况更加不同。 GWF的结果显示出在离子拱的沿海地区（东塔兰蒂诺和萨伦托），在频率均匀分布的点上具有很高的频率。本研究中使用的水足迹方法，尤其是GWF方法，为农业政策规划过程提供了有用的指标，根据水文盆地状况建立土地使用管理的标准，以及评估污染监测计划的工具。 （C）2018 Elsevier B.V.保留所有权利。

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