In a study published in the International Soil and Water Conservation Research, Yuanyuan Li, Jiayan Yang, Mingyi Yang, Bing Wang, and Fengbao Zhang investigated the impact of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More application on soil detachment capacity on the Loess Plateau of China. The research indicates that biochar application at rates of 24 to 96 tha−1 can reduce soil detachment capacity by 6% to 80% within the first two years.  

The study further reveals that after three years, all biochar treatments resulted in an average 48% reduction in soil detachment capacity compared to bare soil. The effectiveness of biochar in reducing soil detachment capacity generally increases with higher application rates and the amount of time since application.  

Key soil properties, such as the mean weight diameter of soil aggregates and cohesion, significantly influence soil detachment capacity in the first two years. In the third year, total organic carbon becomes a primary factor. Shear stress is identified as the most reliable hydrodynamic parameter for estimating soil detachment capacity in biochar-treated soils.  

These findings suggest that applying biochar at appropriate rates and allowing sufficient time for it to interact with the soil can enhance soil erosion resistance. This approach offers a promising strategy for controlling rill erosion in degraded sloping farmland.  

SOURCE: Li, Y., Yang, J., Yang, M., Wang, B., & Zhang, F. (2025). Biochar application reduces soil detachment capacity by overland flow under a continuous three-year field experiment on the Loess Plateau of China. International Soil and Water Conservation Research.