Soil organic carbon changes in the biogas context
Abstract
Biogas is often highlighted as a conversion technology
that enables energy recovery of all kinds of organic
materials while closing important loops for e.g. of plant
nutrients, carbon and water. This usually involves the
utilization of digestate as fertilizer in agriculture.
The contribution of digestate in terms of soil organic
carbon (SOC) increases is an important factor in the
carbon footprint of biogas production. But how does
anaerobic digestion affect the contribution of organic
materials such as straw and manure to SOC in comparison
to the undigested soil application? And can we predict
the SOC contribution from new organic by-products that
originate from e.g. fractionation of digestate, manure
and sludge? The Biogas Research Centre has invited
experts from SLU to shed light on the processes that
affect the stabilization of carbon in soil.
Schedule
10.00-10.20 Registration and coffee
10.20-10.30 Introduction to the topic –
Thomas Prade & Johan Nilsson
10.30-11.15 Thomas Kätterer: Soil carbon
balances affected by agricultural management
practices
11.15-12.00 Göran Ågren: Modelling soil
carbon
12.00-13.00 Lunch break (registered
participants are invited for a light meal)
13.00-13.25 Anna Schnürer: Importance of
substrate and process management for digestate
composition
13.25-13.45 Thomas Prade: Including soil
organic carbon effects in systems analyses
13.45-15.00 Discussion
Please notify us in advance if you are
not joining for lunch!