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Typhoons Exert Significant but Differential Impact on Net Carbon Ecosystem Exchange of Subtropical Mangrove Ecosystems in China : Volume 11, Issue 6 (17/06/2014)

By Chen, H.

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Book Id: WPLBN0004005063
Format Type: PDF Article :
File Size: Pages 29
Reproduction Date: 2015

Title: Typhoons Exert Significant but Differential Impact on Net Carbon Ecosystem Exchange of Subtropical Mangrove Ecosystems in China : Volume 11, Issue 6 (17/06/2014)  
Author: Chen, H.
Volume: Vol. 11, Issue 6
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Yan, G., Lu, W., Yang, S., Chen, H., & Lin, G. (2014). Typhoons Exert Significant but Differential Impact on Net Carbon Ecosystem Exchange of Subtropical Mangrove Ecosystems in China : Volume 11, Issue 6 (17/06/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China. Typhoons are very unpredictable natural disturbances to subtropical mangrove forests in Asian countries, but litter information is available on how these disturbances affect ecosystem level carbon dioxide (CO2) exchange of mangrove wetlands. In this study, we examined short-term effect of frequent strong typhoons on defoliation and net ecosystem CO2 exchange (NEE) of subtropical mangroves, and also synthesized 19 typhoons during a 4-year period between 2009 and 2012 to further investigate the regulation mechanisms of typhoons on ecosystem carbon and water fluxes following typhoon disturbances. Strong wind and intensive rainfall caused defoliation and local cooling effect during typhoon season. Daily total NEE values were decreased by 26–50% following some typhoons (e.g. W28-Nockten, W35-Molave and W35-Lio-Fan), but were significantly increased (43–131%) following typhoon W23-Babj and W38-Megi. The magnitudes and trends of daily NEE responses were highly variable following different typhoons, which were determined by the balance between the variances of gross ecosystem production (GEP) and ecosystem respiration (RE). Furthermore, results from our synthesis indicated that the landfall time of typhoon, wind speed and rainfall were the most important factors controlling the CO2 fluxes following typhoon events. These findings not only indicate that mangrove ecosystems have strong resilience to the frequent typhoon disturbances, but also demonstrate the damage of increasing typhoon intensity and frequency on subtropical mangrove ecosystems under future global climate change scenarios.

Summary
Typhoons exert significant but differential impact on net carbon ecosystem exchange of subtropical mangrove ecosystems in China

Excerpt
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