Soil and Landscape Grid National Soil Attribute Maps - Soil Inorganic Carbon (3" resolution) - Release 1

This is Version 1 of the Australian Soil Inorganic Carbon products of the Soil and Landscape Grid of Australia.\n\nThe creation of this dataset (national estimates of presence and absence, depth to, concentration, and stocks of soil inorganic carbon) was performed by Ng et al. (2025) and published in Geoderma that was tiled: Mapping the distribution and magnitude of soil inorganic and organic carbon stocks across Australia. The work is available at: https://doi.org/10.1016/j.geoderma.2025.117239. \n\nSoil Inorganic Carbon content are a set of six digital soil attribute maps, and their upper and lower confidence limits, representing the soil attribute at six depths: 0-5cm, 5-15cm, 15-30cm, 30-60cm, 60-100cm and 100-200cm.\n\nClassification maps of presence and absence of carbonates are a set of six digital soil attribute maps, representing the soil attribute at six depths: 0-5cm, 5-15cm, 15-30cm, 30-60cm, 60-100cm and 100-200cm.\n\nThere is a single classification map showing depth to carbonates.\n\nDetailed information about the Soil and Landscape Grid of Australia can be found at - https://esoil.io/TERNLandscapes/Public/Pages/SLGA/index.html\n\nAttribute Soil Inorganic Carbon;\nUnits: Classification maps of presence and absence of carbonates [0: absent; 1: carbonates are present]. depth_to_carbonates [0: Carbonates are absent, 1: Carbonates are present at depth of 100-200cm, 2: Carbonates are present at depth of 60-100cm, 3: Carbonates are present at depth of 30-60cm, 4: Carbonates are present at depth of 15-30cm, 5: Carbonates are present at depth of 5-15cm, 6: Carbonates are present at depth of 0-5cm]. Soil Inorganic Carbon content [%];\nPeriod (temporal coverage; approximately): 1950-2021;\nSpatial resolution: 3 arc seconds (approx 90m);\nTotal number of gridded maps for this attribute: 23;\nNumber of pixels with coverage per layer: 2007M (49200 * 40800);\nData license : Creative Commons Attribution 4.0 (CC BY);\nTarget data standard: GlobalSoilMap specifications;\nFormat: Cloud Optimised GeoTIFF;\nLineage: The work was performed by Ng et al. (2025) and published in Geoderma that was tiled: Mapping the distribution and magnitude of soil inorganic and organic carbon stocks across Australia. The work is available at: https://doi.org/10.1016/j.geoderma.2025.117239. \n\nUsing a digital soil mapping and modelliing framework, the SIC models utilised a compilation of environmental covariates and inorganic carbon content related data from pH (n = 41,590), effervescence (n = 15,105) and calcium carbonate measurements (n = 5,776). \n\nMapping outputs from this work were post-processed to align spatially with all other SLGA products.

这是澳大利亚土壤与景观网格（Soil and Landscape Grid of Australia）的澳大利亚土壤无机碳产品版本1。

本数据集（全国范围内土壤无机碳的存在与缺失、深度、浓度及储量估算）由Ng等人（2025）创建，并发表于《Geoderma》期刊，论文标题为《Mapping the distribution and magnitude of soil inorganic and organic carbon stocks across Australia》。相关研究成果可通过以下链接获取：https://doi.org/10.1016/j.geoderma.2025.117239。

土壤无机碳含量数据包含6幅数字土壤属性图（digital soil attribute maps）及其置信上下限，分别对应6个深度层次：0-5厘米、5-15厘米、15-30厘米、30-60厘米、60-100厘米和100-200厘米。

碳酸盐存在与缺失分类图包含6幅数字土壤属性图，分别对应6个深度层次：0-5厘米、5-15厘米、15-30厘米、30-60厘米、60-100厘米和100-200厘米。

此外，还包含1幅显示碳酸盐深度的分类图。

关于澳大利亚土壤与景观网格的详细信息可访问以下链接：https://esoil.io/TERNLandscapes/Public/Pages/SLGA/index.html。

属性：土壤无机碳；
单位：碳酸盐存在与缺失分类图[0：不存在；1：存在碳酸盐]；碳酸盐深度（depth_to_carbonates）[0：无碳酸盐；1：碳酸盐存在于100-200厘米深度；2：碳酸盐存在于60-100厘米深度；3：碳酸盐存在于30-60厘米深度；4：碳酸盐存在于15-30厘米深度；5：碳酸盐存在于5-15厘米深度；6：碳酸盐存在于0-5厘米深度]；土壤无机碳含量[%]；
时间覆盖范围（约）：1950-2021年；
空间分辨率：3角秒（约90米）；
该属性的栅格地图总数：23幅；
每一层的覆盖像素数：2007百万（49200×40800）；
数据许可：知识共享署名4.0许可（Creative Commons Attribution 4.0，CC BY）；
目标数据标准：GlobalSoilMap规范（GlobalSoilMap specifications）；
格式：云优化地理TIFF（Cloud Optimised GeoTIFF）；
数据来源：本研究由Ng等人（2025）完成，并发表于《Geoderma》期刊，论文标题为《Mapping the distribution and magnitude of soil inorganic and organic carbon stocks across Australia》。相关成果可访问：https://doi.org/10.1016/j.geoderma.2025.117239。

研究采用数字土壤制图与建模框架，SIC模型（Soil Inorganic Carbon模型）整合了环境协变量及来自pH值（n=41590）、起泡反应（effervescence）（n=15105）和碳酸钙测量（n=5776）的无机碳含量相关数据。

本研究的制图输出经过后处理，以实现与所有其他SLGA产品的空间对齐。