Soil Grids of Victorian - Field Capacity %

A set of Digital Soil Maps (mean, 5th and 95th percentile prediction values) of field capacity % across Victoria in geotiff format.\n\nGrids of key soil properties have been produced for Victoria. These grids, in raster format, provide prediction and confidence interval values for key soil properties at a 90 m grid resolution for six set depths; 0 to 5 cm, 5 to 15 cm, 15 to 30 cm, 30 to 60 cm, 60 to 100 cm and 100 to 200 cm, across Victoria.\n\nThe grids have been designed to meet the specifications created by GlobalSoilMap (www.globalsoilmap.net) to develop and deliver detailed soil information in a consistent form.\n\nThe grids are a spatial interpolation of key soil properties to support modelling and decision making in resource management, agricultural production, land use policy and planning, and in further research such as ecosystem modelling.\n\nThe methodology used to develop the Soil Grids of Victoria has been based on that refined by the Australian Soil and Landscape Grid. Data and knowledge embedded into existing soil related datasets, e.g. soil profile and land mapping collections, have been key inputs. \n\nWhilst the new maps show an immense amount of fine scale detail, and are our best spatially continuous and exhaustive estimates of soil attributes across all of Victoria, they are most appropriately used for assessments of regional to state-wide trends of soil properties and their relationship with their environment and pedogenesis. Care should be taken when using the grids for local assessments and it is recommended that the confidence intervals are included at this scale.

本数据集包含维多利亚州（Victoria）范围内田间持水量（field capacity，单位为百分比）的数字土壤图，涵盖均值、5%分位数与95%分位数的预测值，格式为GeoTIFF。

研究团队已生成维多利亚州核心土壤属性栅格数据集。该数据集以栅格格式存储，空间分辨率为90米，覆盖维多利亚州全境，针对6个预设土层深度（0~5 cm、5~15 cm、15~30 cm、30~60 cm、60~100 cm及100~200 cm），提供核心土壤属性的预测值与置信区间值。

本栅格数据集遵循全球土壤图（GlobalSoilMap，www.globalsoilmap.net）制定的规范，旨在以统一格式构建并发布高精度土壤信息。

该数据集通过空间插值方法生成核心土壤属性数据，可支撑资源管理、农业生产、土地利用政策制定与规划，以及生态系统建模等领域的建模与决策工作。

本次维多利亚州土壤栅格数据集的构建方法，基于澳大利亚土壤与景观栅格（Australian Soil and Landscape Grid）优化后的技术体系。现有土壤相关数据集（如土壤剖面与土地制图集）中蕴含的数据与专业知识，为本数据集的核心输入来源。

尽管本批数字土壤图展现了大量精细尺度细节，也是目前维多利亚州全境土壤属性空间连续且最全面的估算结果，但其最适宜的应用场景为区域至全州尺度的土壤属性趋势评估，以及其与环境和土壤发生学（pedogenesis）关系的分析。若将栅格数据用于局地尺度评估，则需格外谨慎，且建议在该尺度下结合置信区间数据开展分析。