Soil physicochemical property data for different albic soils across production regions (2021–2025)

To systematically understand the fertility evolution patterns of Albic soil across different time scales and to support scientific fertilization and soil fertility cultivation decision-making, this dataset compiles in-situ monitoring data from major Albic soil production areas in Heilongjiang Province during 2021–2025.

The monitoring indicators include soil organic matter, alkali-hydrolyzable nitrogen, available phosphorus, rapidly available potassium, and pH value—all of which are critical parameters reflecting soil nutrient supply capacity, nutrient balance status, and acidity/alkalinity changes. This dataset can be used both to analyze the inter-annual dynamic trends of Albic soil fertility and to compare nutrient distribution characteristics and barrier-layer effects among different soil layers, thereby providing fundamental data support for Albic soil amelioration, nutrient management, and green agricultural development in the region.