A global dataset of soil particulate organic carbon

The original data for this paper collected from publised papers, including soil paticulate organic carbon concentration, geographic information (latitude, longtidue), soil properties (soil type, soil texture, soil moisture, soil temperature,soil pH, bulk density, porosity,total organic carbon, total nitrogen, soil dissolved carbon, soil dissovled nitrogen, soil microbial biomass carbon, soil microbial biomass nitrogen), climatic information (mean annual air temperature, mean annual precipitation), vegetation type,  sampling dates and depth. A total of 3,418 data points were finally collected from the LUCAS database and 244 publications from 1988 to 2020. The database was divided into two groups: one group consists of 2,507 data points for topsoil (0 – 30 cm) in 632 sites and 911 data points for soil profile (0 – 100 cm) in 55 sites., The data were collected from publications by searching “soil particulate organic carbon” in Web of Science and Google Scholar. We derived the data points from tables involving soil POC and/or extracted from figures vis the Engauge Digitizer software version 10.7.
 , , # Particulate organic carbon original data

[https://doi.org/10.5061/dryad.sbcc2frhh](https://doi.org/10.5061/dryad.sbcc2frhh)

## Description of the data and file structure

All data was collected from published paper by searching \"soil particulate organic carbon\" at Web of Science and Google Scholar.  We derived the data points from tables involving soil POC and/or extracted from figures vis the Engauge Digitizer software version 10.7. Climate, edaphic, and microbial data not mentioned in papers were extracted from global datasets following our previous studies. SOC, TC, and BD were downloaded from the Harmonized World Soil Database (HWSD, [https://daac.ornl.gov/cgibin/dsviewer.pl?ds_id=1247](https://daac.ornl.gov/cgibin/dsviewer.pl?ds_id=1247)) at a 0.05° × 0.05° resolution grid. Soil C, BD, and TN were extracted from the IGBP-DIS dataset (IGBP, [https://daac.ornl.gov/SOILS/guides/igbp-surfaces.html](https://daac.ornl.gov/SOILS/guides/igbp-surfaces.html)) at a spatial resolution of 0...

本研究的原始数据采集自已发表文献，涵盖土壤颗粒态有机碳（soil particulate organic carbon）浓度、地理信息（纬度、经度）、土壤属性（土壤类型、土壤质地、土壤含水量、土壤温度、土壤pH值、容重、孔隙度、总有机碳、全氮、土壤可溶性碳、土壤可溶性氮、土壤微生物生物量碳、土壤微生物生物量氮）、气候信息（年平均气温、年平均降水量）、植被类型、采样日期与采样深度。最终从LUCAS数据库及1988年至2020年的244篇已发表文献中，共收集到3418条数据点。本数据库分为两组：一组为632个样点的表层土壤（0 – 30 cm）数据，共计2507条；另一组为55个样点的土壤剖面（0 – 100 cm）数据，共计911条。

我们通过在Web of Science与Google Scholar中检索"土壤颗粒态有机碳"关键词获取相关文献，并从中提取数据。数据来源包括文献中的表格，或通过Engauge Digitizer 10.7版软件从配图中数字化提取数据点。

# 颗粒态有机碳原始数据集
[https://doi.org/10.5061/dryad.sbcc2frhh](https://doi.org/10.5061/dryad.sbcc2frhh)

## 数据与文件结构说明

所有数据均通过在Web of Science及Google Scholar中检索"土壤颗粒态有机碳"获取自已发表文献。我们从包含土壤颗粒态有机碳（Particulate Organic Carbon, POC）的表格中提取数据，或通过Engauge Digitizer 10.7版软件从配图中数字化获取数据点。对于文献中未提及的气候、土壤及微生物相关数据，我们参考既往研究从全球公开数据集提取。其中，总有机碳（SOC）、全碳（TC）与容重（BD）数据来自分辨率为0.05° × 0.05°的世界土壤数据库（Harmonized World Soil Database, HWSD，[https://daac.ornl.gov/cgibin/dsviewer.pl?ds_id=1247](https://daac.ornl.gov/cgibin/dsviewer.pl?ds_id=1247)）。土壤碳、容重及全氮（TN）数据则来自IGBP-DIS数据集（国际地圈生物圈计划数据和信息系统, IGBP, [https://daac.ornl.gov/SOILS/guides/igbp-surfaces.html](https://daac.ornl.gov/SOILS/guides/igbp-surfaces.html)），空间分辨率为0...