Field to national-scale estimates of soil C dynamics in US cropland. (4888)
Authors:
K. Paustian* - Colo. State. Univ.
S. Ogle - Colo. State. Univ J. Brenner - USDA-NRCS M. Easter - Colo. State. Univ C. Izaurralde - PNNL
K. Killian - Colo. State. Univ S. Willams - Colo. State. Univ
Abstract:
Mathematical models of soil C dynamics are being applied at multiple scales – field to national to global – to predict and assess, among other things, soil management impacts on carbon sequestration. Examples of model applications at several scales are given for US agroecosystems and research challenges that pertain to each level are discussed. Given current and future demand for predictive models of soil C dynamics to inform decision makers – from farmers, brokers and buyers involved in C offset projects to federal government agencies charged with compliance to
international agreements – robust methods to quantify model uncertainty are of particular importance.
Speaker Information: Keith Paustian, Colo. State. Univ., NRELColorado State University, Ft. Collins, CO 80535; Phone: 970 491 1547; E-mail:
Session Information: Monday, November 1, 2004, 8:00 AM-12:00 PM Presentation Start: 8:05 AM
Keywords: greenhouse gas mitigation; carbon sequestration; soil C inventories;
modeling