Global soil antibiotics dataset (dry weight, ng/g)

We revisited previously published databases with records of the occurrence of antibiotics, and collected data on antibiotic concentrations in soils across the globe. Studies and datasets included in these databases were selected according to several criteria: (1) study was not duplicate, and duplicate records were checked and eliminated; (2) only soil-associated samples (within 0–20 cm of soil depth) were retained, and solid manure or waste samples were excluded; (3) soil samples that were not cultured or experimentally treated were included, and only the control soils were considered. However, soils treated by manure fertilization and wastewater irrigation, which corresponded to local land management practices, were not excluded; (4) geospatial information on sampling sites (longitude and latitude) was provided or could be extracted from maps after georeferencing; (5) antibiotic concentrations for each sampling sites were provided (or average values for replicates), and concentrations that were “not detected” or “below detection limit” were assigned zero values; (6) rather than all antibiotics, we mainly focused on environmental concentrations of tetracyclines, quinolones, and sulfonamides antibiotics in soils, as they were widely and frequently detected worldwide 51. In total, these criteria resulted in a final dataset of 659 locations, from which 1,351 soil samples were collected.

本研究回溯了既往已发表的抗生素检出记录数据库，并收集了全球范围内土壤中抗生素浓度相关数据。纳入本研究的数据库文献与数据集，需遵循以下筛选标准：(1) 排除重复研究，已检出的重复记录均已核查并剔除；(2) 仅保留土壤样品（采样深度为0–20 cm），排除固体粪肥或废弃物样品；(3) 纳入未经过培养或实验干预的土壤样品，且仅考虑对照土壤；但符合当地土地管理常规的粪肥施肥与污水灌溉处理的土壤样品，并未予以排除；(4) 需提供采样点的地理空间信息（经度与纬度），或可通过地理配准从地图中提取该信息；(5) 需提供各采样点的抗生素浓度数据（或重复样品的平均值），将“未检出”或“低于检出限”的浓度赋值为0；(6) 本研究未覆盖所有抗生素类别，而是重点关注土壤中四环素类、喹诺酮类与磺胺类抗生素的环境浓度——这三类抗生素在全球范围内被广泛且频繁地检出（参考文献51）。经上述标准筛选后，最终数据集共包含659个采样点位，累计收集土壤样品1351份。

搜集汇总

背景与挑战

背景概述

该数据集提供了全球范围内土壤中三类主要抗生素（四环素类、喹诺酮类和磺胺类）的浓度测量数据，经过严格筛选后包含来自659个地点的1,351个样本，单位为干重纳克/克。数据集特别关注了自然状态下和受粪肥施肥/废水灌溉影响的土壤样本。