New Soil Map Available for Organic Matter and Particle Size Fractions

Locally Enhanced Digital Soil Map for Iowa

Meyer Bohn and Bradley Miller released the LE-DSM for north central Iowa. This map is the next generation of digital soil maps designed to meet the needs of the digital agriculture revolution. The LE-DSM spatial database provides 10-m resolution predictions of soil organic matter, particle size fractions (clay, silt, sand %), and texture class at standard depth intervals 0-5, 5-15, 15-30, 30-60, 60-100, and 100-200 cm. The LE-DSM is more accurate than the Soil Survey Geographic (SSURGO) map (Bohn and Miller, 2024). This is an excellent resource for many soil data end users. For agroecosystem modelers, this means more accurate simulations and predictions. In addition, tech-savvy farmers can access this fine resolution data to optimize their land management practices, ultimately improving crop yield and sustainability. This new data is available at

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