Biokull brukes til jordforbedring og lagring av karbon. Biomasse blir behandlet med høye temperaturer med lite oksygen tilstede, og blir til biokull. Prosessen kalles pyrolyse.
Biokull kan bidra til at jorden:
- har økt evne til å holde på vann
- blir raskere varm om våren
- har økt karbonnivå
- har økt pH
- har bedre evne til å holde på næringsstoffer
- har økt biomasse
- bedre effekten av kunstgjødsel
- reduserte utslipp av klimagasser
materiale i jord.
By converting organic matter into biochar, which has a high stability, carbon can remain fixed in soils for several centuries. Carbon sequestration via pyrolysis and deposition of biochar in soil has evolved over the last decade. Biochar is produced by heating organic material under oxygen-free conditions together with bio-oil and gas that can be used for energy purposes. A significant amount of research has recently contributed to an increased understanding of biochar effects on carbon sequestration, greenhouse gas emissions and agronomy.
However, more research is needed on biochar effects on plant and grain yields, the influence of production technologies on biochar quality and its effect on soil fertility, pyrolysis bio-oil quality and cost reductions. Implementation will further require a combination of substantial innovation, private and public investment, systems of incentives and integration in existing agricultural practices and governance systems.
The main objective of CAPTURE+ is to develop biochar systems as a tool for achieving a zero emission society by applying an interdisciplinary approach for development, assessment and implementation in agriculture and forestry.
This is achieved by improving technical, economical, political and social factors that currently limit biochar implementation in agriculture and forestry, using biotechnology and nanotechnology to improve the production process, developing scenarios for sustainable biochar systems, establishing a demonstrator platform, ensuring biochar quality, engaging stakeholders in implementation paths, and increasing awareness of its potential. The novelty lies in the integration of enabling nano- and biotechnologies to improve the process and ensure enhanced value of end products that may permit large scale adoption. The integration of economic, societal and political analysis, including stakeholder involvement in technology development and implementation is also novel.