Variable | Depth | Value (range) | Units | Ref year | Estimated? | Baseline? |
---|---|---|---|---|---|---|
clay content | 0 – 23 Centimetres | (22 – 24) | Percent | |||
soil pH | 0 – 23 Centimetres | 7.63 (7.34 – 7.83) | 2008 |
Variable | Time period | Value (range) | Units |
---|---|---|---|
precipitation | 1981 – 2010 | 733 (515.5 – 973.5) | millimeter |
air temperature | 1981 – 2010 | 9.8 (8.51 – 10.89) | degree Celsius |
Crop | Years grown |
---|---|
wheat |
Variable | Material | Units | Frequency | Scale | Comment |
---|---|---|---|---|---|
grain yield trait | wheat | t/ha | annual | plot | |
total soil nitrogen | Soil | % | occasionally | plot | Total N by LECO |
soil organic carbon | Soil | % | occasionally | Total C by LECO minus CaCO3 |