Soil Grids of Victorian - Wilting Point %

A set of Digital Soil Maps (mean, 5th and 95th percentile prediction values) of wilting point % 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.

本数据集为一套涵盖维多利亚州全域的萎蔫点百分比数字土壤图（Digital Soil Maps），包含均值、5%分位数与95%分位数预测值，格式为GeoTIFF。
研究团队已针对维多利亚州生成关键土壤属性栅格数据集。该系列栅格以栅格格式存储，分辨率为90米，涵盖6个标准土层深度：0~5cm、5~15cm、15~30cm、30~60cm、60~100cm及100~200cm，可为维多利亚州全域的关键土壤属性提供预测值与置信区间值。
该栅格数据集严格遵循全球土壤图（GlobalSoilMap，www.globalsoilmap.net）制定的技术规范，旨在以统一标准开发并发布高精度土壤信息。
该栅格数据集通过对关键土壤属性开展空间插值生成，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。
维多利亚州土壤栅格数据集的开发方法，源自经过优化完善的澳大利亚土壤与景观栅格（Australian Soil and Landscape Grid）技术体系。现有土壤相关数据集（如土壤剖面与土地测绘馆藏数据）中蕴含的数据与知识，为本数据集的核心输入源。
尽管这套新土壤图展现了海量精细尺度细节，亦是目前维多利亚州全域土壤属性最优的空间连续全覆盖估算结果，但其最适宜的应用场景为区域乃至全州尺度的土壤属性趋势评估，以及土壤属性与环境及土壤发生学（pedogenesis）间的关联分析。若将该栅格数据集用于局地尺度评估，则需格外谨慎，且建议在此类场景中纳入置信区间参数。