Global land use/land cover and soils relations from 850 to 2015 (LUSoils v.1)

This dataset links human land use and land cover types from the Land-Use Harmonization (LUH2) dataset (Lawrence et al., 2016) to four hydrologic soil groups from 850 to 2015 derived from the SoilGrids250m soils dataset (Hengl et al., 2017). These groups represent sandy soils (hydrologic group A) consisting of texture classes sand, sandy loam, and loamy sand; silty soils (hydrologic group B) consisting of loam, silty-loam, and silt; a mixed sand-silt-clay soils (hydrologic group C); and clayey soils (hydrologic group D) represented by clay, sandy-clay, clay-loam, silty-clay, and silt-clay-loam texture classes from the SoilGrids250m dataset. This dataset makes it possible to better link LULCs to soil types typically used for these activities potentially improving the simulation of water, energy and biogeochemical processes in Earth System Models. Additionally, it lays the foundation for simulating LULC impacts on soils that have different vulnerabilities and responses to human uses of soils.

本数据集将源自土地利用协调（Land-Use Harmonization, LUH2）数据集（Lawrence等人，2016）的人类土地利用与土地覆被类型，与2017年Hengl等人提出的、取自SoilGrids250m土壤数据集的850年至2015年的四类水文土壤组（hydrologic soil groups）进行关联。
四类水文土壤组分别为：砂土类（水文组A），涵盖砂土、砂质壤土、壤质砂土三类土壤质地；粉质土壤类（水文组B），涵盖壤土、粉砂壤土、粉砂三类质地；砂粉粘混合土壤类（水文组C）；以及粘质土壤类（水文组D），涵盖粘土、砂质粘土、粘壤土、粉砂粘土、粉砂粘壤土五类来自SoilGrids250m数据集的土壤质地类别。
本数据集可实现土地利用与土地覆被（Land Use and Land Cover, LULC）与对应人类活动常用土壤类型的更精准匹配，有望优化地球系统模型（Earth System Models）中水文、能量及生物地球化学过程的模拟精度。此外，该数据集还为模拟土地利用与土地覆被对不同脆弱性及对人类土壤利用响应各异的土壤的影响奠定了坚实研究基础。