The expected climate changes in Switzerland show increased heavy rainfall events and pronounced dry periods in summer. This means new stresses and challenges for the soil system and agricultural production. The application of plant carbon in agriculturally used soils is predicted to have great potential for climate protection and adaptation. On the one hand, it contributes to carbon sequestration due to its stability against biodegradation, and on the other hand, scientific studies have shown that plant carbon can increase the water holding capacity as well as the sorption capacity of a soil for nutrients and pollutants. However, data and experience from long-term application in practice are lacking.
The project Black goes green uses the new long-term practical trial of Grün Stadt Zürich to investigate the positive effects of plant carbon on aggregate stability and soil water balance as well as nutrient and pollutant sorption in agriculturally used soils and to exclude negative effects on chemical soil quality. Through the direct cooperation of institutions from practice, extension and research, we will disseminate the new findings comprehensively, quickly and with the greatest possible reach at all levels.
The project is intended to contribute to a more objective discussion and a knowledge-based risk-benefit analysis of the use of vegetable carbon in agricultural production.
Project management and implementation
