Articles

How Many Soil Samples Does It Take to Detect a Soil Carbon Change?

soil carbon
MMRV
carbon markets
soil measurement

Soil carbon gains from practices like no-till and cover cropping are small and slow. Using real repeat-sample data and the VM0042 methodology, here is what it actually takes to detect a short term change in soil organic carbon.

Oct 23, 2026
Preston Sorenson

SOC, SIC, and Total Carbon: Measuring the Major Types of Soil Carbon

soil carbon
MMRV
carbon markets
soil measurement

Soil carbon can be found in organic and inorganic forms. Tracking total carbon instead of soil organic carbon can make detecting changes difficult, especially on calcareous soils.

Oct 18, 2026
Preston Sorenson

The Soil Landscape Grids of Canada (100 m): A Preliminary Product That Is Not Yet Ready for Use

soil mapping
predictive soil mapping
soil data
commentary

An assessment of the 100 m Soil Landscape Grids of Canada (version dated 2026-02-11): the reported accuracy rests on out-of-bag error that overstates real performance, independent validation is weak, and covariate choices produce systematic artifacts. A preliminary product, not yet suitable for carbon accounting, modelling, or decision making.

Oct 11, 2026
Preston Sorenson

Soil Carbon Tracks the Rain: A Caution for Carbon Monitoring

carbon markets
MMRV
soil carbon
soil monitoring
climate variability

Nearly a decade of soil data from one Saskatchewan farm shows soil organic matter rising and falling with rainfall, a short-term swing that soil carbon monitoring has to account for.

Sep 20, 2026
Preston Sorenson

How Much Carbon Can No-Till Still Sequester? A Saskatchewan Forecast to 2100

carbon markets
soil carbon
no-till
process modelling
MMRV

Linking predictive soil maps to a process-based carbon model to estimate what no-till has already sequestered across Saskatchewan and how much room is left as the climate warms.

Sep 20, 2026
Preston Sorenson

Canola Yields in a Warming Climate: A Scenario Map for Saskatchewan

climate risk
canola
crop yield
climate scenarios
predictive modelling

Combining 26 climate models with predictive soil mapping to forecast Saskatchewan canola yields to 2100.

Sep 19, 2026
Preston Sorenson

What Soil Organic Carbon Is Worth to Prairie Crop Yields

soil carbon
predictive soil mapping
crop yield
remote sensing

Mapping soil organic carbon across Saskatchewan and linking it to millions of yield records shows what a one percent gain in SOC is worth to farmers and where it has the most benefit.

Sep 18, 2026
Preston Sorenson
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