Skip to ContentSkip to Navigation
Research Integrated Research on Energy, Environment and Society | IREES News

The impact of biogas production on the organic carbon input to the soil of Dutch dairy farms?

A substance flow analysis
17 September 2021

Authors: Dieu Linh Hoang, Brienne Wiersema, Henri. C. Moll, Sanderine Nonhebel.

Journal: Journal of Industrial Ecology.


The use of Dutch dairy manure for biogas production is expected to increase from 10% in 2020 to 60% in 2030. Traditionally, manure is returned to fields as a source of nutrients and organic carbon. Since a share of manure carbon is converted into biogas, this practice impacts the organic carbon input to soil (OCIS) of the dairy farms. The magnitude of the impact depends on the magnitude of the other sources of organic carbon. This impact is not considered by current advocates for large-scale use of dairy manure for biogas while understanding it is essential because of the risk of decreasing carbon soil input. Therefore, a study of carbon flows of dairy farms that eventually contribute to the OCIS is required. In this paper, we use substance flow analysis to quantify the carbon flows on different Dutch dairy farms and investigate the impact of using manure for biogas production to their OCIS (kgC/year/ha). The farms differ in farming practices such as whether cows are grazed outside or not. The results show that about 40% of OCIS of a Dutch dairy farm comes from manure and the rest comes from its crop production. The organic carbon from manure to the soil is also limited by the need to export manure due to the Dutch nutrient regulations. The overall reduction in OCIS caused by biogas production is 10%–20%. The impact is largest in farms with no grazing. These findings provide insights into the possible trade-offs of using manure for biogas production.

Last modified:21 September 2021 09.04 a.m.

More news

  • 24 May 2024

    Lustrum 410 in pictures

    Lustrum 410 in pictures: We are already over half way through our lustrum! Enjoy a few photos of the lustrum so far.

  • 21 May 2024

    Results of 2024 University elections

    The votes have been counted and the results of the University elections are in!

  • 13 May 2024

    Trapping molecules

    In his laboratory, physicist Steven Hoekstra is building an experimental set-up made of two parts: one that produces barium fluoride molecules, and a second part that traps the molecules and brings them to an almost complete standstill so they can...