SoilGrids

SoilGrids1km provide an initial set of examples of soil spatial data for input into global models at a resolution and consistency not previously available. Some of the main limitations of the current version of SoilGrids1km are: (1) weak relationships between soil properties/classes and explanatory variables due to scale mismatches, (2) difficulty to obtain covariates that capture soil forming factors, (3) low sampling density and spatial clustering of soil profile locations. However, as the SoilGrids system is highly automated and flexible, increasingly accurate predictions can be generated as new input data become available. SoilGrids1km are available for download via http://soilgrids.org under a Creative Commons Non Commercial license.

SoilGrids1km 首次提供了一套土壤空间数据示例集，可作为全球模型的输入数据源，其分辨率与一致性均达到了此前未有的水平。当前版本的SoilGrids1km存在三项主要局限：(1) 因尺度不匹配，土壤属性/类别与解释变量间的关联强度不足；(2) 难以获取能够表征土壤形成因子的协变量；(3) 土壤剖面采样点密度偏低且存在空间聚类现象。不过，由于SoilGrids系统具备高度自动化与灵活可扩展的特性，随着新的输入数据投入使用，可生成精度不断提升的预测结果。科研人员可通过 http://soilgrids.org 下载SoilGrids1km数据集，其使用需遵循知识共享（Creative Commons）非商业许可协议。

搜集汇总

背景与挑战

背景概述

SoilGrids是一个提供土壤相关数据的平台，包含土壤有机碳储量等信息，支持按深度（如0-30厘米）查看数据，并提供下载功能。