GwProperty - GWB: Lithium - OGC API Features

Nature of natural, ubiquitously over-embossed groundwater. Achieving good quality groundwater status is one of the objectives of the EU Water Framework Directive (WFD). In this context, among other things, the State Geological Services of Germany (SGD) commissioned the group of persons background values groundwater (PK HGW) with the determination and statistical interpretation of the background values in groundwater in 2005. As a result, a comprehensive overview of aquifer-related background levels in groundwaters in Germany was compiled for hydrochemically similar units (HGCs). The results and method documentation are available on the website of the Federal Institute for Geosciences and Natural Resources (BGR) <a href='https://www.bgr.bund.de/DE/Topics/Water/Projects/Completed/Consultation/Background Values/hgw_projektbeschr.html?nnn=1548666' target='_blank'></a>. Preceding the nationwide processing partly, but also as a result, descriptions of the natural groundwater condition in the sense of geogenous background values were made by some geological state services. The country-specific processing made it possible to examine the hydrogeochemical units in more detail by means of a greater differentiation of the hydrogeochemical units. The nature of natural, ubiquitously over-embossed groundwater in Rhineland-Palatinate was investigated on a cartographic basis of the HÜK200 and the <a href='https://www.lgb-rlp.de/de/service/lgb-downloads/hydrogeologie-d.html#c2559' target='_blank'>results report</a> was published in 2012. The online map on the nature of natural, ubiquitously over-embossed groundwater shows the substance-specific concentrations for the hydrochemical units differentiated in Rhineland-Palatinate. For each hydrochemical unit, the median value (50% percentile) of the corresponding parameter is given. The median values given represent orientation variables in the assessment of the natural, ubiquitously overstamped groundwater properties and replace non-site-based on-site investigations.天然普遍原生富集地下水的特征。维持良好的地下水水质状态是欧盟水框架指令（EU Water Framework Directive, WFD）的核心目标之一。在此背景下，德国国家地质调查局（State Geological Services of Germany, SGD）于2005年委托地下水背景值专项工作组（PK HGW）开展德国境内地下水背景值的测定与统计解析工作。最终，研究团队针对水文化学相似单元（hydrochemically similar units, HGCs），系统梳理了德国境内含水层相关地下水背景水平的综合概况。相关研究成果与方法文档可从德国地球科学与自然资源联邦研究所（Federal Institute for Geosciences and Natural Resources, BGR）官网获取，链接如下：<a href="https://www.bgr.bund.de/DE/Topics/Water/Projects/Completed/Consultation/Background Values/hgw_projektbeschr.html?nnn=1548666" target="_blank"></a>。在全国性数据处理的部分阶段及最终成果产出后，部分州级地质调查机构已针对地质成因背景值范畴内的天然地下水状态开展了描述工作。通过分区域专项处理，可借助更精细的水文地球化学单元划分，对区域水文地质化学单元展开更深入的研究。本数据集以HÜK200地图为基础，针对莱茵兰-普法尔茨州的天然普遍原生富集地下水特征开展了调查，并于2012年发布了成果报告（<a href="https://www.lgb-rlp.de/de/service/lgb-downloads/hydrogeologie-d.html#c2559" target="_blank">详见链接</a>）。该天然普遍原生富集地下水特征在线地图展示了莱茵兰-普法尔茨州划分的各水文化学单元的物质特异性浓度。针对每个水文化学单元，数据集均给出了对应参数的中位值（50%分位数）。上述中位值可作为天然普遍原生富集地下水特征评估的参考变量，替代非场地针对性的现场勘查工作。