Integrated Dataset of Soil Information and Sampling Sites in China’s Black Soil Region

It contains 234 valid records covering seven major areas: Shenyang, Changchun, Hailun, Qiqihar, Sanjiang, Da’an, and Dahewan. The dataset includes sampling-site metadata—such as sampling location, method, depth, geographic coordinates, soil type, land use, and crop type—as well as soil properties including pH, organic matter, total nitrogen, total phosphorus, total potassium, available nutrients, inorganic nitrogen, available micronutrients, microbial diversity, total carbon, soil organic carbon, carbon-to-nitrogen ratio, carbon-to-phosphorus ratio, and the Integrated Fertility Index (IFI).

It provides a data foundation for soil-fertility assessment, nutrient-status analysis, spatial-variation studies, cultivated-land quality monitoring, and the conservation and sustainable management of black soils.