《Table 1 Metadata Table of Database(Dataset)》

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《广西防城港地区地下水现场测试数据集》

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Systematical survey of the groundwater in the Area was carried out in 2013-2015.A portable water-quality analyzer，HQ40D，produced by HACH from America was adopted in the field to test the physical and chemical indices of the groundwater such as T，pH，EC，DO and Eh.Additionally，some indices including the taste，chroma，odor and transparency of the groundwater were qualitatively determined manually.The respective resolution（accuracy）and error of HQ40D is 0.01 and±0.02 for pH，0.1℃and±0.3℃for water temperature，0.1 mg/L and±0.2 mg/L for DO，0.01μs/cm and±0.5%for EC and 0.1 mV and±0.1 mV for Eh.The coordinates of groundwater outcrops（pumping/domestic wells）were measured using GPS.323sets of effective data of groundwater field testing were obtained from the survey，including 193from the wet seasons（from May to September）and 130 from the dry seasons（from November to February）.