中国国家土壤有机碳密度数据集（2010 - 2024年）

A national soil organic carbon density dataset (2010-2024) in China.

作者信息

Chen Zhongxing, Chen Lingkun, Lu Rui, Lou Zihang, Zhou Furong, Jin Yecheng, Xue Jie, Guo Hancheng, Wang Zheng, Wang Yanyu, Liu Feng, Song Xiaodong, Zhang Ganlin, Su Yang, Ye Su, Shi Zhou, Chen Songchao

机构信息

State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, 310058, China.

College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.

出版信息

Sci Data. 2025 Aug 25;12(1):1480. doi: 10.1038/s41597-025-05863-3.

DOI:10.1038/s41597-025-05863-3

PMID:40855057

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12379238/

Abstract

Soil organic carbon (SOC) is a vital component of terrestrial ecosystems and a key indicator of soil quality, agricultural potential, and climate regulation. Despite growing interest in SOC distribution across China, high-resolution and standardized datasets remain scarce. Here, we present a national soil organic carbon density (SOCD) dataset containing 23,103 samples from 7,852 soil profiles collected between 2010 and 2024. The dataset covers soil depths down to 800 cm and includes bulk density (BD) values-both measured and imputed using an ensemble modelling approach. Records are georeferenced and annotated with land cover type, climate zone, and depth information, offering wide spatial and environmental coverage across diverse Chinese landscapes, including the previously underrepresented Qinghai-Tibet Plateau. Data sources include national soil surveys, open-access repositories, and peer-reviewed literature, with all variables standardized to ensure usability.

摘要

土壤有机碳（SOC）是陆地生态系统的重要组成部分，也是土壤质量、农业潜力和气候调节的关键指标。尽管人们对中国土壤有机碳分布的兴趣日益浓厚，但高分辨率和标准化数据集仍然稀缺。在此，我们展示了一个全国土壤有机碳密度（SOCD）数据集，其中包含2010年至2024年间从7852个土壤剖面采集的23103个样本。该数据集涵盖了深度达800厘米的土壤，并包括容重（BD）值——既有实测值，也有使用集成建模方法估算的值。记录进行了地理定位，并标注了土地覆盖类型、气候带和深度信息，覆盖了中国不同景观的广泛空间和环境范围，包括此前代表性不足的青藏高原。数据来源包括全国土壤调查、开放获取数据库和同行评审文献，所有变量均进行了标准化处理以确保可用性。