A Biswal KK Choudhury P Venkat Raju MVR Sesha Sai Agricultural Sciences Application Group, RSAA, National Remote Sensing Centre, Hyderabad 500037, India Water Resources Division , RSAA, National Remote Sensing Centre, Hyderabad 500037, India Computational Ecology and Software ISSN 2220-721X http://www.iaees.org/publications/journals/ces/online-version.asp 2016 6 4 139 149 International Academy of Ecology and Environmental Sciences Hong Kong 5 August 2016 10 September 2016 1 December 2016 DNDC GIS Bio-geo chemical model crop simulation The denitrification decomposition (DNDC) model is a process-based computer simulation model of soil carbon and nitrogen biogeochemistry. The DNDC model is one of the few process-based bio-geo chemical crop simulation models for which both a site-specific mode and a regional mode were developed. For regional mode, a region is presented in a typical Geographic Information System (GIS) consisting of many polygons or grid cells. The database consists of spatially differentiated information of location, climate, soil properties, cropping systems, and farm management practices for each polygon or grid cell for the entire modeled region. An attempt was made to establish the methodology for the estimation of soil greenhouse gas fluxes like CH4, CO2 and N2O on a sub-basin scale. DOI 10.0000/issn-2220-721x-compuecol-2016-v6-0013 http://www.iaees.org/publications/journals/ces/articles/2016-6(4)/application-of-process-based-biogeochemical-model-DNDC.pdf