Modifying the Soil and Water Assessment Tool to Simulate Cropland Carbon Flux: Model Development and Initial Evaluation

Journal Article · Tue Oct 01 00:00:00 EDT 2013 · Science of the Total Environment, 463-464:810–822

DOI:https://doi.org/10.1016/j.scitotenv.2013.06.056· OSTI ID:1130726

Zhang, Xuesong; Izaurralde, Roberto C.; Arnold, Jeffrey; Williams, Jimmy R.; Srinivasan, Raghavan

Climate change is one of the most compelling modern issues and has important implications for almost every aspect of natural and human systems. The Soil and Water Assessment Tool (SWAT) model has been applied worldwide to support sustainable land and water management in a changing climate. However, the inadequacies of the existing carbon algorithm in SWAT limit its application in assessing impacts of human activities on CO2 emission, one important source of greenhouse gases (GHGs) that traps heat in the earth system and results in global warming. In this research, we incorporate a revised version of the CENTURY carbon model into SWAT to describe dynamics of soil organic matter (SOM)- residue and simulate land-atmosphere carbon exchange.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1130726
• Report Number(s): PNNL-SA-95866; KP1601050
• Journal Information: Science of the Total Environment, 463-464:810–822, Journal Name: Science of the Total Environment, 463-464:810–822
• Country of Publication: United States
• Language: English