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AuthorNoh, Nam Jin
AuthorLee, Sun Jeong
AuthorJo, Wooyong
AuthorHan, Saerom
AuthorYoon, Tae Kyung
AuthorChung, Haegeun
AuthorMuraoka, Hiroyuki
AuthorSon, Yowhan
Available date2021-09-01T10:03:32Z
Publication Date2016
Publication NameAnnals of Forest Science
ResourceScopus
URIhttp://dx.doi.org/10.1007/s13595-016-0547-4
URIhttp://hdl.handle.net/10576/22490
AbstractKey message: In the open-field warming experiment using infrared heaters, 3C warming affected soil respiration more in the deciduousQuercus variabilisBlume plot than in the evergreenPinus densifloraSieb. et Zucc. plot, but did not affect the plant biomass in either species. Context: Understanding the species-specific responses of belowground carbon processes to warming is essential for the accurate prediction of forest carbon cycles in ecosystems affected by future climate change. Aims: This study aimed to investigate the effect of experimental warming on soil CO2 efflux, soil-air CO2 concentration, and plant biomass for two taxonomically different temperate tree species. Methods: Experimental warming was conducted in an open-field planted with Q. variabilis and P. densiflora seedlings. Infrared heaters increased the air temperature by 3C in the warmed plots compared with the air temperature in the control plots over a 2-year period. Results: The increase in air and soil temperature stimulated soil CO2 efflux by 29 and 22% for the Q. variabilis and P. densiflora plots, respectively. Seasonal variation in the warming effect on soil CO2 efflux was species-specific. Soil CO2 efflux was also positively related to both soil temperature and soil water content. The soil moisture deficit decreased the difference in soil CO2 efflux between the control and warmed plots. Warming did not affect soil CO2 concentration and plant biomass in either species; however, the mean soil CO2 concentration was positively correlated with root and total biomass. Conclusion: Warming increased soil CO2 efflux in both Q. variabilis and P. densiflora plots, while the increase showed remarkable seasonal variations and different magnitudes for the two species.
Languageen
PublisherSpringer-Verlag France
Subjectair temperature
carbon dioxide
carbon flux
climate change
concentration (composition)
coniferous tree
deciduous tree
evergreen tree
experimental study
phytomass
seasonal variation
seedling
soil moisture
soil respiration
soil temperature
soil water
Pinus densiflora
Pinus resinosa
Quercus variabilis
TitleEffects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings
TypeArticle
Pagination533-545
Issue Number2
Volume Number73
dc.accessType Abstract Only


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