| Summary: | Abstract This study present the factors controlling the aldehyde emission (formaldehyde, acetaldehyde, propionaldehyde, etc.) from plant species such as Pinus densiflora, Pinus koraiensis, Quercus acutissima, Quercus variabilis, Ginkgo biloba, and Oryza sativa. Even in the same tree species illustrate the emission rate variation of as much as 30 ~ 40%. The β-value, a parameter quantifying the temperature and emission correlation, were assessed as 0.07, 0.05 for formaldehyde and acetaldehyde, respectively. The coefficient of correlation was 0.4 and 0.5. for Quercus variabilis. In addition, the correlation between PAR (photosynthetically active radiation) and the emission is assessed close to the temperature impact on the emission. The emission of formaldehyde and acetaldehyde from P. densiflora, P. koraiensis, and Q. variabilis also depends on temperature and PAR. The ERs of total aldehydes of P. koraiensis are assessed at the level of 357.2 ng gdw−1 h−1, followed by propionaldehyde (110.6 ng gdw−1 h−1), acetaldehyde (102.5 ng gdw−1 h−1), and formaldehyde (73.66 ng gdw−1 h−1).
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