A Multi-Factor Analysis of Sustainable Agricultural Residue Removal Potential

摘要: Agricultural residues have significant potential as a near term source of cellulosic biomass for bioenergy production, but sustainable removal agricultural requires consideration the critical roles that play in agronomic system. Previous work has developed an integrated model to evaluate residue considering soil erosion, organic carbon, greenhouse gas emission, and long-term yield impacts practices. The couples environmental process models WEPS, RUSLE2, SCI, DAYCENT. This study uses investigate impact interval practices Boone County, Iowa, US. Residue 4.5 Mg/ha was performed annually, bi-annually, tri-annually were compared no removal. is at type scale using national survey database assuming continuous corn rotation with reduced tillage. Results are aggregated across types provide county level estimates carbon changes individual matter content if implemented. show possible while improving matter. Implementation greater increases still providing substantial bioenergymore » production.« less