BioCORN 2011 Science and Background
- What are the dominant VOCs from biofuel crops: corn, poplars, switchgrass, and Miscanthus?
- What are the likely oxidation products?
- What is the total aerosol and ozone forming potential?
- What biofuel plant species and/or cultivars have the lowest VOC/SVOC emissions?
Phase 1: laboratory and greenhouse measurements (ongoing, one paper published, one draft)
Phase 2: small scale leaf cuvette study in the field (first draft paper)
Phase 3: flux measurements in the field large scale (this field project this summer)
- Intensive I: Growing season (July 14- July 28)
- Intensive II: Corn ears development (Aug 15- Aug 31)
Why a corn field
- Little information on VOC emissions in literature from corn or switchgrass
- Leaf cuvette studies showed much larger emissions from corn than switchgrass
- Corn is largest biofuel crop
Corn and Ethanol production
- In 2009 35 million ha corn were planted in the US
- 92% harvested for corn, 6% for silage
- In 2009 260 million barrel fuel ethanol produced in US (~10% US petroleum)
- In 2009 about 30% of US corn (10.3 million ha) used for fuel ethanol production