进行了全面的水文地质报告,以确定起源,地中海沿海含水层-泻湖系统中影响氮的发生和过程。水位,在LaPletera盐沼地区(西班牙东北部)的4年期间收集了水化学和同位素数据。它们是从冲积含水层收集的,在恢复过程中(2002年和2016年)挖掘了两个天然泻湖和另外四个永久泻湖,两条水道(特河和特维尔人工河道),21口井(考虑其中6口用于地下水采样)和地中海。按季节进行电位测量,然而,十二个月的活动(从2014年11月到2015年10月),进行了9次季节性活动(2016年1月至2018年1月),用于水化学和环境同位素分析.分析了每口井的地下水位演变,绘制电位图,以确定含水层和泻湖之间的关系,海,水道,和地下水流。水化学数据包括原位测量的物理化学数据(温度,pH值,呃,溶解氧,和电导率),主要和次要离子(HCO3-,CO32-,Cl-,SO42-,F-,Br-,Ca2+,Mg2+,Na+,andK+),和营养素(NO2-,NO3-,NH4+,总氮(TN),PO43-,和总磷(TP))。环境同位素包括稳定的水同位素(δ18O和δD),硝酸盐(δ15NNO3和δ18ONO3)和硫酸盐同位素(δ34SSO4和δ18OSO4)。对所有战役的水同位素进行了分析,然而,硝酸盐和硫酸盐同位素水样仅在一些特定调查中进行了分析(2014年11月和12月;1月,April,六月,2015年7月和8月)。此外,在2016年4月和10月又进行了两项硫酸盐同位素调查.通过这项研究产生的数据可以作为分析这些最近恢复的泻湖的演变的起点,以及他们对全球变化的未来反应。此外,该数据集可以用来模拟含水层的水文和水化学行为。
A comprehensive hydrogeological report was conducted to determine the origin, occurrence and processes affecting nitrogen in a Mediterranean coastal aquifer-lagoon system. Water levels, hydrochemical and isotopic data was gathered during a 4-year period in the La Pletera salt marsh area (NE Spain). They were collected from the alluvial aquifer, two natural lagoons and four other permanent lagoons excavated during a restoration process (in 2002 and 2016), two watercourses (the Ter River and the Ter Vell artificial channel), 21 wells (considering six of them for groundwater sampling) and the Mediterranean Sea. Potentiometric surveys were carried out seasonally, however twelve-monthly campaigns (from November 2014 to October 2015), and nine seasonal campaigns (from January 2016 to January 2018) were conducted for hydrochemical and environmental isotopes analyses. The evolution of the water table was analysed for each well, and potentiometric maps were plotted to determine the relationship between the aquifer and the lagoons, sea, watercourses, and groundwater flow. Hydrochemical data included physicochemical data measured in situ (temperature, pH, Eh, dissolved oxygen, and electrical conductivity), major and minor ions (HCO3-, CO32-, Cl-, SO42-, F-, Br-, Ca2+, Mg2+, Na+, and K+), and nutrients (NO2-, NO3-, NH4+, Total Nitrogen (TN), PO43-, and Total Phosphorus (TP)). Environmental isotopes included stable water isotopes (δ18O and δD), nitrate (δ15NNO3 and δ18ONO3) and sulphate isotopes (δ34SSO4 and δ18OSO4). Water isotopes were analysed for all campaigns, however, nitrate and sulphate isotopes water samples were only analysed in some particular surveys (November and December 2014; January, April, June, July and August 2015). Additionally, two more surveys for sulphate isotopes were conducted in April and October of 2016. The data generated through this research may be used as a starting point to analyse the evolution of these recently restored lagoons, and their future responses to global change. In addition, this dataset may be used to model the hydrological and hydrochemical behaviour of the aquifer.