Soil carbon management could be key to solving global sustainability challenges. Now a team of global experts (co-chaired by Grantham supervisor Steven Banwart) have produced a series of recommendations on soil carbon.
‘Soil carbon in the form of organic matter is a huge asset worldwide. Its vital role to support food production and environmental quality is taken for granted,’ says Professor Steve Banwart.
‘There have been significant declines in soil carbon just in the past few decades due to intensive land use. Protecting and improving soil carbon levels in soils around the world is essential for sustained economic development and environmental protection.’
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Global Advances in Soil Carbon Management is a team of 75 experts from 17 countries. In order to draw together science and policy on soil carbon, they recruited a wide range of experts. In Soil Carbon Science, Management and Policy for Multiple Benefits they give key recommendations for soil carbon management. If implemented they could have a significant impact on land degradation, food security, water quality and greenhouse gas emissions from land.
The recommendations and a vast background of scientific evidence are a result of a 2 year international Rapid Assessment Process (RAP) project Benefits of Soil Carbon. The RAP was organised through the Scientific Committee for Problems of the Environment (SCOPE).
Stopping soil carbon losses from organic-rich soils (e.g. peatlands and drylands) where soils are vulnerable due to low soil carbon content.
Promoting soil carbon gains through active soil management in agricultural lands that have experienced historical losses of soil carbon.
Greatly expanding soil and land management from local scale decisions to increased national and international actions to deliver large-scale benefits worldwide.
Reducing the fragmentation in policy for soil and land management.
A global research effort to increase soils carbon content and quantify the soil improvements. Also to adapt improved soil carbon management to land and climate conditions around the world.
Project co-chair Professor Elke Noellemeyer believes practical actions for the management of soil carbon already exist. ‘Conventional agriculture often harms soil carbon levels but there are many practical ways that are used to improve soil carbon in farmland. These practical steps need to be expanded and adapted to local conditions worldwide.’
Professor Jerry Melillo (leader of the USA Global Change Research Programme’s 2014 report on climate change) stresses the urgency of addressing soil carbon. ‘These recommendations are a thoughtful and positive statement that offers practical actions that can be taken to tackle these major global change challenges. Managing soil effectively is one of the most important tasks facing society in this century”’
The full recommendations and supporting scientific evidence for the report are released as SCOPE, Volume 71, published by CAB International. You can find it here.
SCOPE 71 considers a range of topics related to soil carbon. It also includes a plain language discussion of the many free services that soil carbon provides for society. Further, it provides a set of options for managing soil carbon for the benefit of future generations. SCOPE 71 is a resource for policy makers and land managers who are working to build a more sustainable planet.
For the past 45 years SCOPE has been working across scientific, cultural and political boundaries. As a result they’ve produced high profile, policy-relevant scientific assessments on many global environmental issues.
These assessments bridge the gap between research and the application of scientific knowledge in management and policy practices.
Edited by Claire Moran.