From: Soil carbon-food synergy: sizable contributions of small-scale farmers
Category | Variable | Unit | Dataset and source |
---|---|---|---|
Yield | Average yield (wheat, maize, rice, soybean, sorghum, millet) | t ha–1 | M3, Monfreda et al. (2008) |
SPAM2005, Wood-Sichra et al. (2016) | |||
Soil | Topsoil (0–30 cm) organic carbon content | kg C m–2 | GSOC, FAO and ITPS (2018) |
mm per m of the soil unit | HWSD, Wieder et al. (2014) | ||
Available water storage capacity | |||
Climate | Season temperature | °C | S14FD, Iizumi et al. (2017b) |
Season water balance index | mm season–1 | ||
Management | Nitrogen application rate | kg N ha–1 year–1 | Mueller et al. (2012) |
Pesticide application rate | kg ha–1 year–1 | PEST-CHEMGRIDS, Maggi et al. (2019) | |
Irrigation intensity | Fraction to harvested area | MIRCA, Portmann et al. (2010) | |
Farm field size | Category | Fritz et al. (2015) | |
Agricultural knowledge stock | Billion USD | Iizumi et al. (2017a) |