Fact sheet: Plan Bee survey results - Australian queen bee production
Plan Bee, Australia’s national honey bee genetic improvement program, surveyed queen production for the 2020–21 season in order to report on the state of queen...
NATIONAL CHALLENGES AND OPPORTUNITIES
The efficiency factor of soil carbon stock auditing methods
36 pages
Published: 2 Sep 2023
Author(s): Mario Fajardo, Liana Pozza, Edward Jones, Budiman Minasny, Alex McBratney
ISBN: 978-1-76053-394-6
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This project focused on the entry point for starting a soil carbon sequestration activity on farm, including the cost of soil sampling and potential uncertainty of the measurement method for soil carbon. Typically, soil sampling is a significant cost associated with a soil carbon program. Thus, reducing the sampling variance will likely result in increases in net profit from carbon farming sites.
This research project has concluded the following: (1) Before starting a soil carbon accreditation project, the variability (coefficient of variability per unit area) should be lower than 0.01 and the area ideally more than 1,000 ha to achieve a low sampling cost per hectare per year ($3/ha/year); (2) when using a soil carbon measurement method, the most critical factor to consider is sampling variance; and (3) the use of proximally sensed predictions (on-ground sampling) together with remotely sensed data (DIF) provides an opportunity to reduce sampling costs and lower uncertainty.
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