CIRS Blog about Rural California
By Renata Brillinger
The Soil Carbon Challenge digs directly into the ground with the farmers, ranchers, and landowners who can manage land to improve soil health. Peter Donovan, a leader in demonstrating the connection between land management practices and increased soil carbon, founded the Soil Carbon Challenge—“an international prize competition to see how fast land managers can turn atmospheric carbon into water-holding, fertility-enhancing soil organic matter.” Peter has established an approach to scientifically showing (not just telling) the nexus of appropriate land management, soils, and carbon sequestration.
When managed correctly, soil can become a “sink” for atmospheric carbon while also providing benefits such as increased water holding capacity, decreased erosion and runoff, and improved health, productivity, and resilience due to enhanced populations and diversity of soil microorganisms.
Peter believes in showing possibility by measuring change over time, and recognizing actual results. As such, The Soil Carbon Coalition supports “a different kind of science”, believing science is “based on shared evidence, open participation, specific locations and situations, and on learning to manage wholes more than parts.”
The University of California magazine California Agriculture recently published a report that measured soil carbon levels in three perennial cropping systems across Northern California. This study, which was funded by the USDA, brings California one step closer to realizing programs for agriculture that could incentivize sustainable soil management practices and provide financial benefits to farmers.
With a focus on the lesser-understood “high-value specialty perennial crops,” such as walnuts, almonds and wine grapes, researchers in the study sought to develop baseline soil carbon estimates for a variety of agricultural land types and management systems. They gathered data by implementing long-term monitoring networks in perennial crop soils, using a research methodology that could serve as a model for future carbon storage studies.