Acoustic measurement of soil health

Purpose and goal

The project develops a method to measure soil health through sounds from soil organisms. Using acoustic measurements of biological activity, a prototype is being developed to assess the effects of different cultivation methods on Swedish soils. The results will lead to a simple tool for farmers to monitor how soil improvement measures affect the soil and raise interest in soil health and the importance of soil life for productivity and climate among farmers, researchers and entrepreneurs.

Expected effects and result

The project is expected to result in a working prototype for acoustic soil health measurement and a first basis for linking biological activity to soil condition. The work will generate new knowledge and methods and, in the long run, a tool supporting sustainable and regenerative farming on Swedish soils. The effect will be greater understanding and engagement in soil health across agriculture and the food sector, and a stronger link between soil health, carbon sequestration and climate action.

Planned approach and implementation

The project, coordinated by Regenerator and led by IVL Svenska Miljöinstitutet, involves three steps: - Development and planning – establishment of a reference group, methodology and selection of test farms. - Field trials – acoustic measurements on regenerative and conventional farms, data analysis and comparison with biological indicators such as worm counts and soil analyses. - Communication and dissemination – results are reported and presented with audio files, seminars and workshops.