Harmonized Soil Organic Carbon and Phosphorus Data for the Contiguous United States

Soil organic carbon (SOC) and soil phosphorus can strongly influence adjacent water quality by introducing nutrients into aquatic ecosystems and also altering the light environment of those ecosystems. However, national-scale data are uncommon, and even when available, they are usually not aggregated in a manner that is expeditiously merged with basin-level data. To facilitate national-scale analyses of soil data with co-located water quality data, we present aggregated SOC and soil phosphorus data for the Contiguous United States. Data are aggregated using the HydroBASINS basin shapefiles. HYBAS_ID is retained to enable merging with HydroBASINS parent datasets.土壤有机碳（Soil Organic Carbon, SOC）与土壤磷素可通过向水生生态系统输入营养盐、改变其光照环境，对邻近水体水质产生显著影响。然而，国家级尺度的土壤数据较为匮乏，即便已获取相关数据，通常也难以与流域尺度数据实现高效融合。为便于开展结合同位置水质数据的国家级土壤数据分析，本数据集提供美国本土（Contiguous United States）的聚合化土壤有机碳与土壤磷素数据。本数据集采用HydroBASINS流域形状文件进行数据聚合，并保留HYBAS_ID字段，以支持与HydroBASINS母数据集的关联整合。