A georeferenced dataset of heavy metal occurrence in the soils of the Yangtze River Basin, China (2000-2020)

Understanding the spatial pattern of heavy metals at a fine scale is critical for optimal control of environmental capacity and targeted treatment of pollutants. We summarize the up-to-date dataset on the occurrence of common heavy metals in soils of the Yangtze River Basin, a large basin in China of vital economic and ecological importance, by searching peer-reviewed literatures published between 2000 and 2020. The dataset ensures the accuracy of literature screening through quality control procedures, mainly extracting detailed geographic location and concentration of heavy metal. The dataset includes a total of 7867 records (Zn: 1045, Cu: 1140, Pb: 1261, Cr: 980, Cd: 1242, Ni: 649, As: 821, Hg: 729) of heavy metal occurrence in soils of the Yangtze River Basin, distributed at four scale levels of province, prefecture, county, township or finer. The up-to-date dataset provides the latest status of heavy metal occurrence in soils of the Yangtze River Basin, which can be used as a further ecological and health risk assessment, and as a data basis for the repair and prevention of soil heavy metal pollution in the Yangtze River Basin. and ecological importance, by searching peer-reviewed literatures published between 2000 and 2020. The dataset ensures the accuracy of literature screening through quality control procedures, mainly extracting detailed geographic location and concentration of heavy metal. The dataset includes a total of 7867 records (Zn: 1045, Cu: 1140, Pb: 1261, Cr: 980, Cd: 1242, Ni: 649, As: 821, Hg: 729) of heavy metal occurrence in soils of the Yangtze River Basin, distributed at four scale levels of province, prefecture, county, township or finer. The up-to-date dataset provides the latest status of heavy metal occurrence in soils of the Yangtze River Basin, which can be used as a further ecological and health risk assessment, and as a data basis for the repair and prevention of soil heavy metal pollution in the Yangtze River Basin.

在精细尺度下解析重金属的空间分布格局，对于优化环境容量管控、实施污染物靶向治理具有关键意义。长江流域作为我国兼具重要经济与生态价值的大型流域，本研究通过检索2000至2020年间发表的同行评议文献，整理得到一套该流域土壤常见重金属赋存现状的最新数据集。本数据集通过严格的质量控制流程保障文献筛选的准确性，核心提取要素包括重金属的精准地理坐标与浓度数据。数据集共计收录7867条长江流域土壤重金属赋存记录，其中锌（Zn）1045条、铜（Cu）1140条、铅（Pb）1261条、铬（Cr）980条、镉（Cd）1242条、镍（Ni）649条、砷（As）821条、汞（Hg）729条，采样尺度涵盖省级、地级、县级、乡级及更精细的四级尺度。本最新数据集完整呈现了长江流域土壤重金属的当前赋存状态，可用于开展后续生态与健康风险评估，同时可为长江流域土壤重金属污染修复与防控工作提供数据基础。