Title: Modeling the impacts of climate variability and hurricane on carbon sequestration in a coastal forested wetland in South Carolina
Author: Dai, Zhaohua; Trettin, Carl C.; Li, Changsheng; Sun, Ge; Amatya, Devendra M.; Li, Harbin
Source: Natural Science 5(3):375-388
Description: The impacts of hurricane disturbance and climate variability on carbon dynamics in a coastal forested wetland in South Carolina of USA were simulated using the Forest-DNDC model with a spatially explicit approach. The model was validated using the measured biomass before and after Hurricane Hugo and the biomass inventories in 2006 and 2007, showed that the Forest-DNDC model was applicable for estimating carbon dynamics with hurricane disturbance. The simulated results indicated that Hurricane Hugo in 1989 substantially influenced carbon storage immediately after the disturbance event. The simulated net ecosystem exchange (NEE) for the 58-year period (1950-2007) indicated that the hurricane reduced CO2 sequestration due primarily to the increased decomposition of a large amount of litter and woody debris, including fallen trees (over 80% of pre-hurricane trees), debris and branches, and dead roots. The inter-annual fluctuation of soil CO2 flux showed that the climate variability interfered substantially soil carbon dynamics in the forest. The results showed that there were substantial spatial and temporal differences in CO2 flux (3.2 - 4.8 Mg·C·ha−1) and wood biomass due to the differences in physical and biogeochemical characteristics in the forest.
Keywords: Greenhouse Gas, Forest-DNDC, Biogeochemical Model, Biomass, Climate Change
View and Print this Publication (2 MB)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may vist the new Publication Ordering page to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Dai, Zhaohua; Trettin, Carl C.; Li, Changsheng; Sun, Ge; Amatya, Devendra M.; Li, Harbin 2013. Modeling the impacts of climate variability and hurricane on carbon sequestration in a coastal forested wetland in South Carolina. Natural Science 5(3):375-388.