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Lerendegui-Marco, J.*; Guerrero, C.*; Mendoza, E.*; Quesada, J. M.*; Eberhardt, K.*; Junghans, A. R.*; Kimura, Atsushi; n_TOF Collaboration*; 126 of others*
Physical Review C, 97(2), p.024605_1 - 024605_21, 2018/02
Times Cited Count:17 Percentile:84.76(Physics, Nuclear)Lerendegui-Marco, J.*; Corts-Giraldo, M. A.*; Guerrero, C.*; Harada, Hideo; Kimura, Atsushi; n_TOF Collaboration*; 114 of others*
EPJ Web of Conferences, 146, p.03030_1 - 03030_4, 2017/09
Times Cited Count:0 Percentile:0.08Hoshika, Yasutomo*; Watanabe, Makoto*; Katata, Genki; De Marco, A.*; Deushi, Makoto*; Carriero, G.*; Koike, Takayoshi*; Paoletti, E.*
no journal, ,
Ozone (O) enters leaves via stomata and causes a damage to leaves of trees. Modeling of stomatal conductance (g) is considered as an essential factor to assess O impacts. In this presentation, our recent progress of research for the modeling of g under elevated O is summarized. First, we investigated g parameters of the Jarvis-type model for forest tree types throughout the world. The optimal temperature of g and g response to predawn water potential changed according to the growth conditions. Next, an optimization model of stomata including O effects was tested in free-air O exposure experiment on Siebold's beech in Japan. The optimal stomatal model explained O-induced stomatal closure in early summer. However, in late summer and autumn, the model did not explain the effects of O on g. This reflects the loss of closing response of stomata by O (stomatal sluggishness) such as under low light conditions. Finally, we examined the effects of O-induced stomatal sluggishness on carbon gain and transpiration of temperate deciduous forests in the Northern Hemisphere by combining a detailed multi-layer land surface model and a global atmospheric chemistry model. Our findings are consistent with previous experimental evidences, suggesting significant impairment of forest carbon and water balances attributed by O-induced stomatal sluggishness.