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| Titel |
Modelling methane emissions from natural wetlands by development and application of the TRIPLEX-GHG model |
| VerfasserIn |
Q. Zhu, J. Liu, C. Peng, H. Chen, X. Fang, H. Jiang, G. Yang, D. Zhu, W. Wang, X. Zhou |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 7, no. 3 ; Nr. 7, no. 3 (2014-05-26), S.981-999 |
| Datensatznummer |
250115625
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| Publikation (Nr.) |
 copernicus.org/gmd-7-981-2014.pdf |
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| Zusammenfassung |
| A new process-based model TRIPLEX-GHG was developed based on the Integrated
Biosphere Simulator (IBIS), coupled with a new methane (CH4)
biogeochemistry module (incorporating CH4 production, oxidation, and
transportation processes) and a water table module to investigate CH4
emission processes and dynamics that occur in natural wetlands. Sensitivity
analysis indicates that the most sensitive parameters to evaluate CH4
emission processes from wetlands are r (defined as the CH4 to CO2
release ratio) and Q10 in the CH4 production process. These two
parameters were subsequently calibrated to data obtained from 19 sites
collected from approximately 35 studies across different wetlands globally.
Being heterogeneously spatially distributed, r ranged from 0.1 to 0.7 with a
mean value of 0.23, and the Q10 for CH4 production ranged from 1.6
to 4.5 with a mean value of 2.48. The model performed well when simulating
magnitude and capturing temporal patterns in CH4 emissions from natural
wetlands. Results suggest that the model is able to be applied to different
wetlands under varying conditions and is also applicable for global-scale
simulations. |
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