Abstract
In many temperate-zone ecosystems, seasonal changes in environmental and biological factors influence the dynamics and magnitude of surface–atmosphere exchange. Research was conducted between July and October 2001 to measure growing season surface-layer fluxes of CO2 in a Deyeuxia angustifolia dominated wetland on the Sanjiang Plain in northeastern China. Seasonal fluctuation and daily change in soil-surface CO2 fluxes were measured as well as the edaphic factors controlling CO2 fluxes. Soil-surface CO2 fluxes were measured with a closed-chamber system. The results revealed that there were both seasonal fluctuations and daily change in CO2 fluxes. The ranges of measured soil-surface CO2 flux were 0.208 – 1.265 g CO2m−2h−1. Soil-surface CO2 fluxes averaged 0.620 g CO2 m−2h−1. An analysis of several edaphic factors including soil temperature and soil moisture of the D. angustifolia wetland showed that there was a significant relationship between flux and temperature (R2 = 0.77).
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Zhaofu, L., Xianguo, L. & Qing, Y. Soil-surface CO2 fluxes in a Deyeuxia angustifolia wetland in Sanjiang Plain, China. Wetlands Ecol Manage 13, 35–41 (2005). https://doi.org/10.1007/s11273-003-5041-8
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DOI: https://doi.org/10.1007/s11273-003-5041-8