1. General Model Information

Name: DeNitrification and DeComposition model

Acronym: DNDC

Main medium: air+terrestrial
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: compartment model
Main application:
Keywords: nutrient dynamics, CO2, denitrification, decomposition

Contact:

Changsheng Li and Steve Frolking
Complex Systems Research Center
Institute for the Study of Earth, Oceans and Space
University of NewHampshire, Durham, NH 03824-3525 USA

Phone: +1 603 862-1792
Fax: +1 603 862-0188
email: changsheng.li@unh.edu

Author(s):

Li, C., S. Frolking and T.A. Frolking.

Abstract:

DNDC (i.e., DeNitrification-DeComposition) is a computer simulation model of carbon and nitrogen biogeochemistry in agro-ecosystems. The model can be used for predicting crop growth, soil temperature and moisture regimes, soil carbon dynamics, nitrogen leaching, and emissions of trace gases including nitrous oxide (N₂O), nitric oxide (NO), dinitrogen (N₂), ammonia (NH₃), methane (CH₄) and carbon dioxide (CO₂).

II. Technical Information

II.1 Executables:

Operating System(s): WINDOWS
Download (ZIP)

see another page with different versions of DNDC:
http://www.dndc.sr.unh.edu/Models.html

II.2 Source-code:

Programming Language(s): BASIC (?)

II.3 Manuals:

User's Guide (PDF)

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

View Input data requirements of DNDC in comparison to other Soil Organic Matter models:
These seven tables can be downloaded in Postscript Format

III.2.2 Output

View output data of DNDC in comparison to other SOM - Models:

IV. References

see:
list of publications (most are fulltext available)

V. Further information in the World-Wide-Web

The DNDC Model - Homepage at University of New Hampshire

VI. Additional remarks

Global change implications: This model could be used to studythe effects of elevated CO2 on denitrification and decomposition. It may alsoprovide some insights into the ability of soils to act as carbon sinks.

Last review of this document by: gabele@wiz.uni-kassel.de : 23. 05. 1997 -
Status of the document:
last modified by Joachim Benz Fri Oct 6 14:20:33 CEST 2006